Coast | Platform Engineer (Security), DevSecOps Engineer & Full-stack Product Engineer| Hybrid | NYC

Coast is re-imagining the trillion-dollar U.S. B2B card payments infrastructure, with a focus on the country’s 500,000 commercial fleets, 40 million commercial vehicles, and many million commercial drivers. Coast's mission is to deliver modern digital experiences, affordable and transparent financial services products at a transformational scale, and to improve working lives in one of the country’s biggest industry sectors.

Coast is competing and winning with software, and we are building a world-class engineering team. We are looking for a Platform Engineer (Security)/DevSecOps Engineer - first of it's kind at Coast, with high ownership, impact, visibility. We are also looking for full-stack product engineers across mid to senior levels.

If interested, please apply:

Product Engineer: https://job-boards.greenhouse.io/coast/jobs/4000170004 Base: $160,000 - 215,000 + equity + benefits + equity and fun perks!

DevSecOps/Platform Engineer/Security Engineer: https://job-boards.greenhouse.io/coast/jobs/5816914004 Base: $160,000 - $180,000 + equity + benefits + equity and fun perks!

Tango Me | Senior Backend / Frontend / Android / QA | Limassol, Cyprus | Hybrid | Relocation

Tango is a live-streaming platform with 400M+ registered users — high-scale B2C at the intersection of video streaming, creator economy, and social features. I'm an Engineering Manager building two product teams focused on activation and retention. Looking for engineers who take ownership and push back when something doesn't make sense. Backend: Java 17–21, Spring Boot, GCP, Apache Kafka, MySQL, Redis, Aerospike Frontend: React 16+ (hooks), TypeScript/ES6+, Redux + Redux Toolkit, SASS, Jest Android: Kotlin/Java, Dagger2, Compose UI, Kotlin Flows, Coroutines Open roles:

Senior Backend Engineer Senior Frontend Engineer Senior Android Engineer QA Engineer (automation-focused)

Relocation to Limassol, Cyprus: full relocation package, work permit + residence permit for spouse, hybrid (1 remote day/week), stock options, competitive salary + performance bonus, medical insurance, meals in office. Careers: https://business.tango.me/careers Direct contact: https://t.me/joetribbb

Eequ | Senior Backend Engineer | Remote (UK) | Full-time | £80k–£110k | Node.js, NestJS, TypeScript, MySQL, AWS, Terraform

Join a disciplined, senior team responsible for the platform behind Eequ, where engineers have real ownership and operate with high autonomy.

We are the market-leading supplier to local authorities in the UK for council-funded activity programmes and we also serve thousands of independent providers. Our platform handles bookings, payments, and sensitive data at scale. We are profitable, bootstrapped, and growing.

What you'll do Build and operate the backend platform that powers a real marketplace handling bookings, payments, and reporting for thousands of families and providers.

Design and ship features from API design through database models to deployment Make architectural decisions and communicate them clearly to the team Own our AWS infrastructure, CI/CD pipelines, and keep production healthy with observability and alerting Lead incident response when things break, find root causes, and drive follow-ups Improve database performance, query patterns, and data pipeline as usage grows.

Stack: Node.js, NestJS, TypeScript, MySQL with TypeORM, Redis, AWS (EC2, RDS, S3, CloudWatch), Terraform, Turborepo monorepo.

Apply via eequ.org/careers or email directly: avida@eequ.org

Apple | SRE | San Diego | Full-time

You will work closely with developers who are building applications in Python and JavaScript, ensuring their code runs seamlessly in production. Your role will involve driving solutions for hybrid infrastructure (both on-premise and public cloud) and architecting our AWS-based platform. You will manage technologies such as Pulumi, Argo, Docker, Kubernetes, Postgres, and DataDog, combined with custom Apple software and tooling. You will oversee and enhance the CI/CD pipeline and support deployment of QA’s automated testing. You will monitor performance of the infrastructure and identify areas of improvement. You will identify infrastructure needs for new projects and coordinate with developers to ensure they are factored into the development process.

Apply here: https://jobs.apple.com/en-us/details/200648948/tools-and-pro...

OneChronos | Systems Engineers + Software Engineer, Data Platform | NYC (HQ), London or Amsterdam | Flexible / Remote | Full-Time

We offer a strong engineering culture and are looking for engineers to design and optimize high-performance trading systems that power our periodic auction matching infrastructure.

We build production systems in Rust and are seeking engineers with meaningful Rust, C++, Java, or Python experience, particularly from backend or systems-oriented environments.

Systems Engineer Systems programming role focused on low-latency, high-throughput distributed computing. Work across order and data workflows, auction execution, reliability, and performance optimization to ensure the platform is efficient, fault-tolerant, and capable of complex trade matching at scale.

We’re especially interested in engineers who: Have built backend or systems-level software Care deeply about performance, concurrency, and correctness Are motivated by real-time, performance-sensitive systems Have experience with compilers, static analysis, or language tooling (a strong plus)

Software Engineer, Data Platform Build and evolve the infrastructure behind our analytics platform. The role sits between data engineering and backend development and focuses on high-volume, time-sensitive data pipelines and workflow systems that process terabytes of trading data and billions of rows daily.

We’re especially interested in engineers who:

Have built internal data platforms or large-scale pipelines (Python/SQL; Rust a plus) Have experience with workflow orchestration (Temporal, Airflow, Dagster, etc.) Have worked with large datasets, columnar formats (Parquet/Arrow), and production data systems

CONTACT: careers@onechronos.com – please include “HN” in the subject line. ADDITIONAL OPENINGS: https://www.onechronos.com/careers/

Oklo | Remote (US) or Santa Clara or Brooklyn | Full time | https://oklo.com

Join us in pioneering the next generation of nuclear reactors! You'll leverage your software skills alongside nuclear engineers to model, simulate, design, and deploy advanced fission power technology. You will work at the forefront of the nuclear industry, developing novel techniques to reach new levels of safety, efficiency, and resiliency. Come be a part of powering the future with advanced fission power plants to provide clean, reliable, affordable energy.

We are hiring for:

- Software Engineer: https://job-boards.greenhouse.io/oklo/jobs/4018702004

- Senior Software Engineer: https://job-boards.greenhouse.io/oklo/jobs/5739483004

- Software Engineer (Infrastructure): https://job-boards.greenhouse.io/oklo/jobs/5784826004

- Software Quality Assurance Lead: https://job-boards.greenhouse.io/oklo/jobs/5480416004

See more opportunities here: https://job-boards.greenhouse.io/oklo

Please mention Hacker News in your cover letter!

There is something up with your hiring system. I shared this post with a friend who applied, and they got an instant rejection. This is a data engineer with 4+ years experience in your stack and a degree in nuclear engineering to boot. Maybe not an ultimate hire but clearly not someone you should be auto-rejecting.

Thank you for flagging this, that definitely shouldn't be happening. Possibly we have an over-zealous spam filter. If you and your friend are open to it, please email me at pca@[company].com and I will personally look into it.

This is a classic example of why generic ATS filters and keyword-based AI fail both candidates and EMs. When the screening process is a black box, you lose high-signal candidates before a human even sees their CV.

I'm building Taknut (https://taknut.com) specifically to solve this for Engineering Managers. Instead of auto-rejecting, it uses a framework to generate interview guides rooted in the candidate's actual projects. It identifies specific technical proof points (like that nuclear engineering degree + specific stack experience) to help the EM ask deep questions rather than relying on a "Pass/Fail" bot.

If you're tired of "over-zealous filters" killing your pipeline, it might be worth a look to bring the human evaluation back into focus without losing time.

clean drop

I don't think that product solves this problem. You need to get 3k applications, many spam down to 10-20 or so you want to do round 1 with.

What was their citizenship? My guess is there are security clearances involved.

You need to get in touch with them personally. I feel all hiring happens in circles.

MongoDB | Staff/Senior Security Software Engineer or SRE - Infrastructure Security | REMOTE (US) or HYBRID (NYC) | Full-Time

We are looking for experienced Software and Site Reliability Engineers to help secure the foundation of MongoDB Atlas, our globally distributed, multi-cloud database platform running across AWS, GCP and Azure.

This is a builder role, focusing on security tooling and observability, runtime detection, hardening policies, and infrastructure-as-code guardrails that protect our massive infrastructure.

Some of the things we're working on:

- Building secure-by-default infrastructure leveraging Linux, eBPF and Kubernetes security mechanisms, and implementing runtime detection and monitoring.

- Developing our in-house CSPM (Cloud Security Posture Management) and Vulnerability Management platforms.

- Integrating security directly into our CI/CD workflows and Terraform pipelines.

We're looking for engineers with a strong systems mindset who have some of:

- 5+ years of experience in SWE, SRE, or similar roles with some relevant security experience.

- Proficiency in one programming language: Golang, Rust, Python, C/C++ etc.

- Deep understanding of Linux internals, networking, and Kubernetes security.

- Familiarity with one major cloud provider (AWS, GCP or Azure.)

- A builder's mentality: you think about failure modes, observability, and operability alongside security and correctness.

For any questions, or to apply (mention HN): Email: hani.benhabiles+hn@mongodb.com JD: https://www.mongodb.com/careers/jobs/7727896

Other SRE / Infrastructure teams as are also hiring. Happy to help.

Engineering Director, Developer Experience | Company: Adyen| San Francisco | Hybrid |

We are seeking a visionary, and experienced Director of Developer Experience (DevX) to lead our global customer experience efforts. In this leadership role, you will be the strategic advocate and driver for ensuring our merchants and partners experience a world-class platform integration. You are instrumental in shaping the developer journey, ensuring that integrating with Adyen is not just easy, but a genuinely superior experience.

You will live and breathe our public APIs, SDKs, and documentation. You will identify where developers face friction and then build the tools and shape the content to eliminate it. This is a role for a builder and a communicator who wants to have a direct, tangible impact and redefine the standard of integration for thousands of developers worldwide.

https://job-boards.greenhouse.io/adyen/jobs/7419377

Shapes | Fullstack Engineer (AI Product) | ONSITE | San Francisco | Full-time

We’re building an AI chat platform where humans and AI interact in group chats, voice, and video.

Small team, high ownership, ship fast. We talk to users and build things we actually use.

We’re looking for a fullstack engineer to build product features end-to-end.

What you’ll do: - Build and ship features across frontend and backend - Work on real-time chat, onboarding flows, and AI interactions - Own features from idea → production - Collaborate closely with design and iterate quickly

Tech stack: React / Next.js, Python, real-time systems

Looking for: - Strong fullstack experience - Product mindset (you care about UX, not just code) - High agency - you move fast and take ownership

Apply: https://jobs.shapes.inc

Against Malaria Foundation | Senior Software Engineer | Remote (UK) | Full Time

The AMF works to fight malaria in an extremely cost effective way with insecticide treated bed-nets. Every year hundreds of millions of people will be infected with malaria, and half a million of them will die, with many more being debilitated or disabled. Independent charity evaluators, such as GiveWell, have ranked the AMF as one of the most cost-effective charities in the world for over a decade, due to our long and well-studied track record preventing hundreds of millions of cases of malaria.

Our tech team is just a couple people, and all-remote. Our software is essential to the charity work we do; it is one of the ways we stand out among other charities, by allowing us to automate, analyze, and validate our work in novel ways. Our tech stack includes C# .NET, Blazor, and Python.

If you are a senior SWE in the UK who is interested in making a difference, please reach out to me by email at my first name at againstmalaria.com

Hi,

"please reach out to me by email at my first name at againstmalaria.com"

which name exactly? it is not clear from the website also.

Below is the summary of the proposal which i have sent to the email address: SoftwareEngineer2025@againstmalaria.com SoftwareEngineer2026@againstmalaria.com

Not UK-based (India, remote) but wanted to reach out regardless given the nature of the work.

Sent a detailed email which covers what I understand about your system, a modernization proposal that doesn't disrupt operations, some donor engagement feature ideas and compensation expectations.

Background: systems architect, AI-directed development, molecular diagnostics and lab automation domain.

Head of Engineering & Infrastructure | Full-Time | Remote | $182k - $272k USD - https://fetlife.com/jobs/head_of_engineering_and_infrastruct...

Role: Fully own our engineering and infrastructure teams, keep FetLife fast and reliable for over 12 million members, and free the rest of the leadership team to focus on product and growth.

How to Apply: Email jointheteam+hoei+hn@fetlife.com with a brief introduction, tell us about the impact you have personally made on an engineering or infrastructure team you have led, and LinkedIn or resume (PDF).

--- FetLife | Senior DevOps Engineer | Full-Time | Remote | 115k - 180k USD - https://fetlife.com/jobs/devops-engineer

Role: Develop and implement infrastructure upgrades, database tuning, Kubernetes and Helm orchestration, monitoring, and security. Help maintain and improve our large-scale Rails monolith, including CI/CD. Participate in on-call rotation and help automate daily DevOps tasks.

How to apply: Email jointheteam+do+hn@fetlife.com with a brief introduction, 2–3 favorite projects, GitHub/GitLab link, and LinkedIn profile or resume (PDF).

---

Stack: MySQL/PostgreSQL, ScyllaDB, Redis, ElasticSearch, Terraform, Google Cloud, DataDog and more.

Applications: Rails, Vue.js/Typescript, Rust

Perks: Paid time off (2 weeks vacation, 5 statutory holidays, 2 weeks at Christmas, 4-day summer workweeks), annual company retreat, anniversary gift ($200/year), monthly music subscription reimbursement, fully paid maternity & paternity leave.

Greenhouse Software | Engineering Manager (Analytics Product) | REMOTE (Ontario or BC, Canada) | Full-time | We're unable to support sponsorship at this time.

Greenhouse is the company dedicated to making hiring work for everyone. We help over 7,000 companies meet their hiring goals, and over a million job seekers find their next job with our MyGreenhouse product.

The Role: We're looking for a hands-on Engineering Manager to lead our Data Experience team of 7. This team owns our full user-facing reporting and analytics product. It's a high-impact role where you'll lead the strategy for how our customers visualize and interact with their hiring data at scale.

Our Tech Stack: Ruby on Rails, JavaScript, TypeScript, React.

Requirements: - 5+ years of experience as a product-focused full-stack software engineer; 1+ year of people management experience. - Deep understanding of RESTful API design principles and distributed system architecture - Demonstrated proficiency in modern programming languages/frameworks (preferably Ruby/Rails, JS, TS, React) - Demonstrated ability to manage cross functional collaboration with Product and Design - Demonstrated knowledge of SDLC fundamentals

Compensation: National pay range: $142,700 - $214,100 CAD

If you're interested, please apply directly through the job posting: https://grnh.se/jmara1dr1us

RINSE | REMOTE or San Francisco, Los Angeles, Chicago, Boston, New York City, New Jersey, Seattle, Austin, Toronto, or Washington DC | Software Engineer | Full-Time | Salary: $80k-$200k USD | https://www.rinse.com

Rinse provides dry cleaning and laundry delivery services to customers in twelve metropolitan areas in the US and Canada. We have sophisticated logistics optimization software, a polished consumer product, and firm business fundamentals. We're now over a decade old - this is a stable, yet consistently growing and innovating, company.

Our engineering team is distributed across the United States and internationally, and has been entirely remote for years now, but a desk can be provided in the above cities if you'd prefer.

We're open to both newly-graduated engineers or more senior engineers, provided they meet our bar. We're particularly interested in true full-stack engineers, with strong React / Typescript / CSS skills to complement comfort in a Python / Django environment. We're also seeking engineers with experience leveraging AI to automate complex operational processes.

This season, we're particularly interested in new grads or junior engineers, to round out the team.

You will join a high-caliber team where collaboration, honesty, and open communication are at the core of everything we do.

Search term bingo: Logistics, Django, Python, Optimization, React, React Native, Postgres, Mobile Engineer, Automation, Delivery, OR-tools, Forecasting

Hi, The role seems to be great fit for me. I just applied. Please do take a look at my profile and reach out to me if you any questions. Looking forward to hearing from you

Hi Sam, I just applied. I'm a full stack engineer working with Python, React, TypeScript, and PostgreSQL at a mortgage tech startup where I built a state machine for application lifecycle management and an AI agent system. I'm especially interested in the logistics optimization and automation work. Looking forward to connecting.

How much of the routing is real-time re-optimization vs batch overnight?

Hi @samcheng. Role sounds a perfect fit for me. Just applied. Hopefully I'm not too late.

Would love to apply but there is no option to select remote/international on your careers page.

Edit: Oops, I clicked on valet, not engineering. Emailing you now

Just curious: How do you solve the problem of matching socks?

We employ caring, careful, and diligent laundry attendants to fold laundry and match socks. While we do have video camera systems, we haven't yet found any robotics systems that are ready for the scale and efficiency we have with our team. We're watching the space closely, though!

Do you have any openings for the Analytics Engineer role?

That role is in flux, as we work to understand the leverage LLMs can give us in this domain. (We also employ Metabase extensively, for a democratized analytics environment.)

Please stay in touch; we might want to find someone to help us in this domain in the coming months.

I love search term bingo

Stackable | Product Engineer - Web & UI | Remote (Germany/UK) | ~20 people | Full or part-time

IMPORTANT: ONLY APPLY IF YOU ARE PHYSICALLY BASED IN GERMANY OR UK! (I received almost 100 applications, about 85 of them did not read the details)

We build an open source data platform on Kubernetes. The product (Stackable Data Platform - SDP) bundles 12+ open source data tools (Trino, Apache Kafka, Apache Airflow, Apache Superset, etc.) and makes them work together. Right now everything is Infrastructure-as-Code only. We need someone to build a UI layer on top.

No mockups, no Figma, no product roadmap waiting for you I'm afraid, just a bunch of ideas :) We're all backend people and need someone to own this end to end. Play around with our product stack, figure out what customers actually need, build it.

Stack (because we got started without you...): Svelte/SvelteKit, TypeScript, TailwindCSS. SDP itself is Rust, Java, Python on K8s. Three releases a year. Not SaaS. Quality matters.

100% remote, Germany (UK possible) only, no other countries, sorry. No Scrum, minimal meetings. Interview process is usually just two conversations. The position isn't on our homepage yet as I'm on vacation. Send a mail to recruiting@stackable.tech and I'll get back to you next week. Please mention HN in your mail. My personal mail is also in my HN profile. I'm the Co-founder and CTO.

https://github.com/stackabletech/ | https://stackable.tech

3 releases a year? Should think about increasing that...

It's not us. It's the customers that struggle with the pace already. In the enterprise world we operate in having more than one release a year is already considered breakneck speed.

Every day we stray further from the light of our lord and savior, Dr. Nicole Forsgren...

No Ireland? Why?

Because of bureacratic overhead. We did employee people from other EU countries in the past because I personally honestly don't care where someone is from or where someone lives. But you need to learn the rules of every country. And they are often subtly different. We even struggle with UK & Germany already. It's annoying. And we have like 0,1 FTE to take care of HR stuff and anything "out of the ordinary" eats into that time and money budget.

The rules need to change. The rules will not change. So we're stuck.

Interesting project, good luck.

Thank you :)

FUTO | Software Engineers | Austin, TX | Remote or Onsite | Full Time FUTO is an organization dedicated to developing, both through in-house engineering and investment, technologies that frustrate centralization and industry consolidation. Our work consists of a combination of in-house engineering projects, targeted investments, generous grants, and multi-media public education efforts. We are hiring for a few of our projects, Immich and Grayjay.

Immich is on a mission to provide a secure and private home for your most precious memories through our high-performance, self-hostable photo and video backup solution.

Grayjay is a privacy first media application that lets users follow creators, not platforms. The app aggregates content from multiple video sources including YouTube, Rumble, Twitch, PeerTube, Odysee, and more, into a single unified experience. Grayjay gives users full control over their viewing experience.

Roles currently available:

Mobile Developer - Immich : https://futo.tech/jobs/mobile-developer-immich

Android/iOS Mobile Engineer - Grayjay : https://futo.tech/jobs/mobile-engineer-grayjay

Plugin Engineer - Grayjay : https://futo.tech/jobs/plugin-engineer-grayjay

More details and job postings here: https://futo.tech/jobs

To apply, send your resume and cover letter to jobs at futo dot org.

Higharc | REMOTE | Full-time | https://higharc.com

Thousands of homes have been built with Higharc since 2022. We’re changing the way homebuilders design, sell, estimate, and build, resulting in better, more affordable homes.

I’m starting a new Labs team focused on rapid experimentation, to expand our platform and explore new markets in residential construction. I’m looking for a few rare, entrepreneurial founding members:

* Staff Software Engineer - https://jobs.ashbyhq.com/higharc/c620be3c-6529-4776-9f02-da1...

* Senior AI Engineer - https://jobs.ashbyhq.com/higharc/4cedbfac-f0ad-42c0-abed-3f1...

* Senior Design Systems Engineer - https://jobs.ashbyhq.com/higharc/26f3d61d-5027-44c8-bd17-b3b...

This is an exceptional opportunity to work on something with real-world impact, with a team of talented & passionate folks across a wide range of domains. We are ~200 people across the world (mostly US) and growing quickly. You can reach out to me with questions at "moc.crahgih@yeffamretep".split('').reverse().join('')

We are also hiring across all teams (creative tooling, ML, computational geometry, integrations, etc.): https://jobs.ashbyhq.com/higharc

Here is says 'REMOTE' but the links say 'Remote (United States)'. Which is it?

Proven Software | QA Analyst | REMOTE (US) Full-Time | $85k-$110k

We've hired three developers from HN and now we're looking for a QA Analyst to join the team.

Proven is a start-up software company delivering a modern electronic medical record (EMR) to behavioral health and physical therapy. Proven's Founders and Executive team have decades of experience successfully growing and scaling companies in healthcare. Our mission is to deliver an innovative and impactful solution to healthcare providers leveraging modern technology. At Proven, we are looking for bright, hard-working, and highly motivated individuals who want to be a part of our fast-growing company.

4+ years software QA testing experience required. Manual testing across our EMR platform — functional, regression, and usability. Strong understanding of SDLC and Agile. Experience building out automated testing processes, EMR/healthcare software, HIPAA, or SQL are bonuses but not required.

We primarily work ET hours but are flexible. Excellent PTO and employer-sponsored healthcare benefits.

Email us at: hiring AT provensoftware DOT com

Solace Health | Multiple Engineering Roles | REMOTE (US) | Full-time | No visa sponsorship offered

We're hiring Typescript Engineers on all our core groups as we're poised to double the size of our 90-person Engineering team this year.

We're Solace Health. In four years, we've provided free healthcare advocacy to over 225K patients on Medicare, and soon we're opening access to everyone in the US. We exist to make sure nobody in the US has to navigate their healthcare journey alone. We hit Unicorn status after our February Series-C led by IVP, bringing us to $207M raised and a $1B valuation. Compensation and benefits are highly competitive and includes equity!

Open Roles

- Senior Full Stack Engineer ($150k-$200k)

- Senior Backend Engineer ($150k-$200k)

- Staff Software Engineer ($200k-$225k, Fullstack or Backend lean)

- Technical Lead ($200k-$230k, player/coach people managers)

Tech Stack

Typescript with ReactJS and NodeJS plus NestJS, PostgreSQL, GCP, SQL, TypeORM, and shadcn for our UI Library

APPLY HERE

https://jobs.ashbyhq.com/Solace?utm_source=x4QJmBQEg7

If you want to build fast with high autonomy and believe in strong typing as much as we do, we'd love to hear from you!

SEEKING | AI/ML Engineer | Auburn AL → SF/Seattle/NYC/Remote | F-1 STEM OPT through Feb 2028 (no sponsorship needed)

4 yrs production GenAI: AWS Bedrock RAG (92% recall, HIPAA), LangGraph multi-agent copilots shipped to prod, QLoRA/LLaMA 2 fine-tuning, LangChain/LlamaIndex, Python, Docker/K8s.

Co-author ACL 2024 (healthcare AI). MS Data Science UNT 2024. Currently ML Research Scientist @ Auburn (multi-agent VLMs).

Open to: Applied Scientist / ML Eng / GenAI Eng / AI Eng

Email: ksaimanikanta4@gmail.com GitHub: github.com/saikasireddy Resume: [https://docs.google.com/document/d/1pjp-I0XfRP96fxu-nbIdOAVQ...]

Rainbow Insurance (https://www.userainbow.com) | Backend Software Engineer | Full Time | Hybrid (2 days on-site in San Francisco) | Golang Rainbow is a tech-enabled small-business insurer. We built software that underwrites small businesses (starting with restaurants) and evaluates them against various risks to provide them with insurance policies. We've been live for only 2.5 years but already one of the top insurers of restaurants in the US. We are looking for an experienced software engineer to join our team and help us grow and innovate. We've raised around $20m to date with a series A around end of 2024. We've grown massively over the past year. Most of our problems we're currently working on are about building tech as we expand out to other categories of insurance and insuring other types of businesses.

Job Requirements:

- 5+ years of professional experience as a software engineer

- Experience in fintech is an optional but major plus

- Familiarity with our tech stack (Golang, React through a Next.js app, GraphQL, PostgreSQL) is beneficial but not required

Why You’d Enjoy Working with Us:

- You're joining a small fast paced team: 12 engineers, 40 people total

- Direct impact on solving real-world problems for small businesses

- Hybrid work model with 2 days on-site in SF

- Competitive salary and benefits

If interested, please reach out at hn@userainbow.com with your resume attached to the email.

You can also visit our site to learn more: https://www.userainbow.com/about

River | Senior + Staff Engineers (Elixir, React, ML/AI) | SF or NYC or REMOTE (US, Europe, South America) | Full-Time | $150K-$250K + equity | https://jobs.ashbyhq.com/river

I'm Alex, founder and CEO of River. I also wrote the first line of code and still ship PRs.

River is a client-first Bitcoin-only financial institution building the financial app people use every day to save in bitcoin and spend in dollars. We custody over 25,000 BTC, serve individuals and businesses across the U.S., and are profitable. We publish cryptographic proof of reserves monthly and our company financials annually.

Here's what our engineering team is working on:

  - Real-time Bitcoin and USD payments, trading, and settlement on an Elixir monolith with a unified GraphQL API
  - Next-generation Bitcoin custody with quorum signing, key ceremonies, and geo-redundant infrastructure
  - Scaling our ML/AI systems (Python, PyTorch, XGBoost, LLMs) to automate operations and tackle fraud/risk
  - A ground-up React and React Native rewrite of our consumer app
  - Porting our Lightning Network infrastructure from Go into Elixir

We're hiring:

  - Senior Software Engineer (React, Full-stack) | $150K-$220K
  - Staff Software Engineer (Elixir) | $200K-$250K
  - Staff Software Engineer (ML/AI) | $200K-$250K

Apply at https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4

MongoDB | Senior Developer Advocate | REMOTE (Dublin, Ireland) | Full Time

My org is hiring for multiple openings for Senior Developer Advocate roles. We aren't just doing "content." We are the technical "tip of the spear" for MongoDB's largest global accounts.

- The Scale: You'll be solving data architecture and performance bottlenecks at a scale very few engineers ever get to see. - The Impact: It's incredibly rewarding to optimize systems for household-name companies and see the immediate ripple effect. - The Culture: You'll join a tight-knit group of MongoDB experts who actually enjoy collaborating. - The Mix: This is a high-engagement role.

There are multiple open positions:

For significant travel across the UK/Europe (and occasionally Asia) to work face-to-face with devs, balanced with deep-dive technical work. Apply at https://www.mongodb.com/careers/jobs/7241758

For mostly remote, apply at https://www.mongodb.com/careers/jobs/7495485.

If you have 5+ years of experience in consulting/SA/DevRel and want to bypass the recruiter screen, contact Hubert directly: https://www.linkedin.com/in/hubertnguyen/ or message me directly @mongodb.com

Bloomberg | Senior Software Engineer | Hybrid (NYC) | Full-time | $160k - $240k USD + bonus

Every day, Bloomberg’s clients rely on secure and seamless access to our products. Our team makes that possible by building infrastructure that verifies identities for both clients and employees. We design systems that are fast, resilient, and highly available, capable of handling large volumes of authentication traffic around the clock.

We are embarking on an initiative to modernize and unify Bloomberg’s authentication landscape. Your work will directly affect the experience of Bloomberg’s employees and clients worldwide.

You'll need to have

- Experience guiding the architecture of large scale authentication systems.

- Experience developing or operating Open ID Providers, Authorization Servers, and Identity Providers

- Deep understanding of OAuth, OIDC, SAML, FIDO or similar protocols

You can expect to

- Lead design and development of Bloomberg’s next-generation authentication and MFA systems, aligning with future product goals

- Create scalable, end-to-end identity solutions across web, API, and proprietary technologies

- Collaborate with cross-functional partners across product, design, and engineering

Apply: https://bloomberg.avature.net/careers/Public?jobId=17745

Note, I'm an engineer on the team and would be happy to answer any questions.

Do you offer any kind of relocation assistance for people who are already U.S. based?

Yes, relocation assistance is a possibility.

Is 4+ YoE a hard requirement? (3.5 yrs here)

Visa sponsorship possible?

Copper Home | Staff Embedded Systems Engineer | ONSITE (Berkeley, CA)

Copper Home (fka Channing Street Copper) builds battery-integrated induction appliances for home electrification — we're making decarbonization accessible by putting energy storage inside everyday products, starting with the stove.

The firmware team is small and owns application firmware, device connectivity, automated testing, manufacturing tools, and an MQTT backend for OTA updates and fleet telemetry.

We're hiring a staff embedded systems engineer focused core firmware architecture on the Charlie induction range.

In this role, you may:

- Own major pieces of our embedded platform and prototypes of future products.

- Lead improvements to device connectivity (Wi-Fi, BLE, OTA, provisioning, failure recovery) and energy management.

- Evolve fleet management, telemetry, and remote management/update systems with a focus on robustness and cost efficiency at scale.

- Mentor engineers through design reviews and day-to-day technical collaboration.

Tech stack: C and Python; FreeRTOS on ESP-IDF; 802.11, BLE, CAN; MQTT; AWS

Salary: $182k–$210k + equity

Questions? Send me an email (<username>@copperhome.com) or reply here.

More details and apply: https://copperhome.com/pages/jobs?gh_jid=4119303007

Lucia Protocol Remote | Full time | https://www.luciaprotocol.com/

Lucia Protocol is at the forefront of AI-driven data infrastructure, building the future of decentralized ad attribution. We are redefining how brands, publishers, and communities leverage Web3 to accurately track, attribute, and reward digital actions. Our team is innovating where AI, blockchain, and decentralized ecosystems intersect to power transparent and efficient ad measurement solutions.

We are hiring for:

- Chief Technical Officer (CTO): https://www.indeed.com/job/chief-technology-officer-cto-d625...

- Senior ML Engineer https://www.indeed.com/job/sr-ml-engineer-06c5b4f007aac3db

HUNT Cloud, NTNU | Trondheim, Norway | Full-stack software engineer | ONSITE | https://about.hdc.ntnu.no/en/about/careers

HUNT Cloud provides trustworthy cloud computing for high-impact science that utilizes sensitive data. We believe it should be simple for scientists to get flexible, elegant and secure digital laboratories.

Tech stack:

  * Research services for sensitive data and high impact international science.
  * Multisite on-prem Openstack cloud deployment with +10 petabytes of multilayered Ceph storage and +6000 vCPUs.
  * Tailor-made research tools for interactive computing and data transfers.
  * Flask API services (Python) on the backend.
  * Vue (Javascript and Typescript) on the frontend.
  * Key management using Vault.
  * CI/CD pipelines and Infrastructure as code (IaC).  
  * Compliance with ISO-standards for quality, security and privacy.

If you're interested in shaping sensitive data infrastructure or if you have any questions feel free to reach out: cloud@hunt.ntnu.no.

Do you provide visa sponsorship?

I'm building Diamond Hands Fantasy — think fantasy sports meets Wall Street. Users draft S&P 500, Nasdaq-100, and DJIA stocks into C-Suite roster positions (CEO, CFO, COO, etc.) and compete head-to-head in weekly matchups based on actual market performance. Same skill-game legal framework as DraftKings/FanDuel. Incorporated Delaware C-Corp, fully spec'd, prototype built, GTM ready. Looking for a CTO co-founder who can own the technical stack end-to-end. Stack is Next.js, React Native, Supabase, Postgres, Redis, BullMQ, Polygon.io for live market data. Ideal background: fintech, gaming, or real-money platforms. Product ownership mindset over contractor mindset. Equity: meaningful co-founder stake with standard vesting. Based in NYC. Remote-friendly for the right person. Reply here or email [diamondhandsfantasy@gmail.com].

Joom | https://about.joom.com/ | Portugal, Lisbon (onsite) | Full-time | Visa | Relocation

Joom Group is an international tech-centric group of e-commerce companies founded in 2016 in Latvia. We are here to transform the largest industry in the world, global trade, making it more transparent, efficient, and technology-driven. Today, Joom Group brings together the following businesses: Joom, a global cross-border marketplace; JoomPro, the first and only end-to-end cross-border B2B marketplace; JoomPulse, an AI analytics tool for Mercado Livre sellers; and Onfy, a pharmaceutical marketplace in Germany. Joom Group’s offices are located in China, Brazil, Portugal, Latvia, and Germany, with headquarters in Lisbon, Portugal. We work as one international team, sharing knowledge and collaborating across countries, businesses, and products.

We are hiring for:

- Top-tier Software Engineer: https://joom-group.breezy.hr/p/eb4507ce63da-top-tier-softwar...

- ML/AI Team Lead at JoomPro: https://joom-group.breezy.hr/p/d1b87e5b32c1-ml-ai-team-lead-...

- Lead Backend Developer (Go) at JoomPro: https://joom-group.breezy.hr/p/df9b90d18230-lead-backend-dev...

- Senior ML Engineer (Search/Marketing Automation): https://joom-group.breezy.hr/p/fe927632328f-senior-ml-engine...

- Senior Backend Developer (Go): https://joom-group.breezy.hr/p/fe927632328f-senior-ml-engine...

- Senior/Middle DevOps / Site Reliability Engineer: https://joom-group.breezy.hr/p/439e666fe481-devops-site-reli...

Zed Industries | North America, South America, Europe REMOTE | https://zed.dev/ Zed is a company for developers, by developers. All 3 of our founders have spent years in the trenches writing software and still do it almost every single day.

We've raised $42M to support our ultimate vision, a new way to collaborate on software, where conversations about code remain connected to the code itself, instead of being tied to aging snapshots or scattered across different tools. The first step was creating a high-quality editor to serve as the user interface. Now this new investment lets us expand to tackle the next phase of our plan. We're developing a new kind of operation-based version control that incrementally tracks the evolution of your code with edit-level granularity, and we're integrating it into Zed to make collaboration, both with agents and teammates, a first-class part of the coding experience.

What we look for and how we build - https://zed.dev/blog/hiring

Rust Engineer - https://zed.dev/jobs/rust-engineer

AI Rust Engineer - https://zed.dev/jobs/ai-engineer

Product Designer - https://zed.dev/jobs/product-designer

Open Source Engineer - https://zed.dev/jobs/open-source-engineer

Sage | Remote (Florida, Texas, Oregon, Washington) | Business Development Executive

Sage is a senior-living technology platform that connects care management, staffing, and analytics to improve clinical and operational outcomes. The platform includes a caregiver-facing care app, EHR integrations, AI-powered data and recommendations for staffing and level-of-care decisions, analytics and reporting, and integrations with nurse-call and life-safety hardware. It is designed for use across the continuum of senior care (independent living, assisted living, memory care, and skilled nursing) to reduce response times and fall-related hospitalizations, improve caregiver satisfaction, and drive financial performance for communities.

You’ll be at the forefront of our sales team, driving revenue growth and building strong relationships with senior care communities across the country. You’ll work closely with our CEO, sales, and cross-functional teams to develop and execute a strategic sales plan, manage the full sales cycle, and close new business and expansion opportunities. This is a high-ownership role for someone who loves selling, thrives in a fast-moving environment, and wants to accelerate their craft quickly.

What You'll Do - Own the end-to-end sales process: prospecting, discovery, demos, pricing, negotiation, and close - Build and manage a strong pipeline within Assisted Living/Senior Living markets - Develop trusted relationships with decision-makers and senior stakeholders at target communities - Partner closely with the broader team to refine messaging, process, and go-to-market strategy - Bring a “challenge the status quo” mindset and help prospects understand the business impact of modernizing care delivery

Application details: We are committed to having a transparent and bias-free selection process that is inclusive to all applicants. To apply: https://www.sagehealth.com/company/careers#open-roles

PhysicsX | Principal AI Engineer | London / NY / Remote | Full time | physicsx.ai

We're building an AI-native platform that turns physics simulations from days-long jobs into millisecond inference. Think: training deep learning surrogates on CFD, FEA, thermal data, and Large Physics Model (LPM) frontier research so engineers can explore thousands of design variants in a single session — across aerospace, semiconductors, energy, and automotive.

You should have the scar tissue of running agents in production and strong opinions on what the future looks like.

We're ~170 people, raised $135M Series B, and backed by General Catalyst, Atomico, Siemens, and Applied Materials. The team includes people from F1, SpaceX, Google, Palantir, and Tesla.

If this sounds interesting: https://job-boards.eu.greenhouse.io/physicsx/jobs/4804769101

Or email me directly: joel.schwarzmann [at] physicsx [dot] ai

Locket | https://locketcamera.com | Hybrid, San Francisco + Remote | Full-time

Locket is the fastest-growing social app among Gen Alpha and Gen Z.

What if social media actually made you happier? Unlike other platforms focused on entertainment and endless scrolling, Locket helps you connect with the people who really matter: your best friends.

- 10M DAU, 100M downloads, $10M+ annual run rate

- Help define how AI fits into social media

- Ship to 10s of millions of active users from day one

- Scale the defining social app for the next generation

We’re hiring:

- Backend engineers

- Social media manager

Learn more and apply here: https://locket.camera/jobs

My GF forcefully installed your app in my phone (around 12-15 months back). Definitely It is one of the coolest ideas to stay connected (specially with your partner). Now we broke up and its still in my phone :)

By the way what is the tech-stack that you work in ?

Woah! Cool idea.

VozParking | Founding Engineer / Technical Cofounder | Netherlands / Europe / REMOTE | Equity

VozParking is an early-stage mobility startup focused on helping drivers make faster, clearer parking decisions under pressure.

This is not meant to replace Google Maps or Waze. It’s a parking decision layer that sits on top of navigation tools, with voice as an important part of the interaction model to reduce phone use while driving.

Current stage:

early prototype exists core product logic is clear next milestone is a usable, testable MVP

Looking for:

a genuinely hands-on founding engineer / technical cofounder strong builder mindset comfortable across product + engineering interested in real-world interaction, systems, and usability challenges wants to build long-term, not freelance or advisory-only

If aligned, email: danielceo@vozparking.com Please include a short intro, what you’ve built, and how you like to work in early-stage products.

Revelare Networks / Mobile Software Engineer/ Fully Remote/ Full-Time/ US Citizen

We are hiring a Mobile Software Engineer with extensive experience in Android (Kotlin/Jetpack Compose) and iOS (Swift/SwiftUI). The salary range for this position is $110,000 - $155,000, depending on experience level.

You must be a U.S. citizen for this position

Please apply here: https://apply.workable.com/revelare-networks/j/3B32865D60/

Matcha | REMOTE (Europe / Canada / US) | Full-time | https://matcha.fm

Building Matcha and putting together a founding team.

If you want to be close to the product, have real ownership, and work with people who care about what they ship — read on.

Full-Stack / Frontend / AI Engineer — https://matcha.fm/apply/fse

Designer — https://matcha.fm/apply/design

Product — https://matcha.fm/apply/product

Growth / GTM / Marketing — https://matcha.fm/apply/marketing

PostHog | Full-Time | Product engineers, backend engineers, Technical AMs, sales leader | REMOTE (all remote) | Hiring GMT-8 to GMT+2

PostHog makes dev tools that help product engineers build successful products.

* we have a public handbook (posthog.com/handbook) if you want to learn how we work, pay and more in complete detail.

* we are growing through more autonomy and transparency not through process.

* we have a ton of scale and a bunch of super interesting technical problems to solve

* we're building 20 more products over the next couple of years, so you could end up building one of those

* public compensation calculator! see immediately what you'd get paid

* we're hiring: product engineers, clickhouse operations engineer, backend engineers, product managers, technical account managers and technical customer success managers.

https://posthog.com/careers

Hi Tim - I applied for the Product Engineer role and got rejected before even reaching the first interview, which honestly surprised me a bit given how closely it seems to match my background.

I have 10+ years of experience across big tech, startups, and open source, from founding-stage ambiguity to production systems at meaningful scale, in stacks that overlap a lot with PostHog's.

Before applying, I spent a few weeks using PostHog, and that turned into 6 merged PRs and 1 more in review. Some came from community discussions where I saw users asking for something useful and others came from friction I hit while using the product myself. I also shared a few additional concrete ideas in my cover letter that I'd be excited to bring to PostHog.

If this feels like a miss worth revisiting, I'd love to chat. (parinporecha@gmail.com)

Hi Tim, I'm not sure what role would suit me best- titles haven't fit me well over a 15+ year career, but "data science and adjacent" wouldn't be inaccurate. With a focus on translating technical findings into strategic input for leadership decision & policy making- neutral or opinionated per the context's needs. The former has usually intersected with operations in coordination with IT, the later to the c-level.

By training: dusty philosophy & cog sci, less dusty linguistics, translation theory, NLP. More recent work w/ London School of Economics on AI Law, Policy, & Governance. LLMs come naturally, so I'm looking for a change. (Location: NYC area, USA)

For what I can offer:

Over the past few months I've built a toolkit for model interpretability that operates below black-box prompt-output observation and raw numeric activations, collapsing a lot of complexity into something more discrete and tractable, with accuracy that appears, at least from outside the core AI industry, to be harder to come by with many current methods. This includes monitoring and inference-time intervention without retraining or weight modification.

I've used it to improve benchmark performance across modalities- DeBERTa mini boosted overall > 10% in the adversarial HANS dataset through fewer false positives, no retraining or degradation in other performance. Needs testing in any deployment of course. Similarly, MedGemma, MMFLD, Whisper, a few others, with some of their standard benchmarks. Same methodology of exploration and inspection.

Utility tooling along the way includes an intuitive REPL interface for token-by-token exploration of model internals during inference, or optionally post-inference with data capture by SQLlite & LanceDB, analysis with UDF's and python. Other tools for pre-token-gen semantic monitoring and intervention intra inference. I've observed some things that are more speculative, though still promising, for understanding model behavior. All generally grounded in classical Linguistics areas of study that seem less mined for insights than industry has had opportunity to pursue in-depth with but actionable nonetheless.

I'd love to talk further. These are mainly my personal time interests though, so a resume through a job posting doesn't generally cover things adequately, if a different option is available, though I can go that route if you'd prefer.

Hi, do you still have the technical support specialist opening available or has that position been filled?

Not at the moment but we probably will be hiring more later in the year!

Ashby | YC 19 | REMOTE | Hiring Product Engineers | Sr: $153k-$220k, Staff: $190k-$275k

Ashby is the all-in-one recruiting platform powering hiring at the world’s most innovative companies. If you cmd+f “Ashby” you’ll see that we’re powering many of job postings in this thread!

* Grew our engineering team from 30 -> 60 last year with plans to double again in 2026.

* 80%+ of our engineering team is made up of Senior-Staff+ level Product Engineers. We give an unusual amount of ownership to our engineers to build features end-to-end. Many of our most loved features were build entirely by a single engineer!

* 100% remote asynchronous culture with an even distribution of engineers across North America and Europe

* Full transparency on engineering levels + comp: https://www.ashbyhq.com/blog/engineering/leveling-and-compen...

Stack: TypeScript (frontend & backend), React, GraphQL API, Node.js, Postgres, Redis.

Full list of open roles: https://www.ashbyhq.com/careers

Just applied for the Senior Product Eng role. Love the product, been on the candidate side of it a lot recently and it's genuinely great to use. Would be awesome to help build it!

Oneleet (YC S22) | Multiple Roles | US & NATO Countries | Remote | Full-time Oneleet is an all-in-one cybersecurity startup that has built its own Attack Surface Monitoring (ASM), Code Scanner, Endpoint Protection, and Compliance Platform. We recently raised a Series A and are growing at an rapid pace and working on some very exciting projects.

What we're looking for:

- Strong problem solvers who can work independently in a remote environment

- Security-minded professionals passionate about building robust, scalable systems

- Comfortable working during Eastern Time

Tech stack: Go, TypeScript, React, Kubernetes Open roles

* Application Software Engineer, Endpoint Security (macOS experience preferred)

* Fullstack Engineer, AI Implementation

* Senior Product Designer

* GTM Engineer

* Customer Support Specialist

We offer: - Competitive salary

- Equity in a fast growing cybersecurity startup

- 100% remote work

- Company offsites yearly (past offsites have been in The Netherlands, Portugal and Italy)

If you're interested in joining our team, please reach out to join<at>oneleet<dot>com with the subject line "HN: <Job Title>" and your resume attached. Alternatively, you can also apply at https://jobs.ashbyhq.com/oneleet

Additional Note: We are also building out a 'forward deployed' sales team based in San Fransisco - if interested, please reach out to join<at>oneleet<dot>com with the subject line of `HN: SF Sales`

Caribou | Toronto, or Remote Canada | Full Time | https://www.caribou.care/

Caribou helps homecare organizations attract, engage, and retain staff through data-driven recognition, rewards, and coordination tools that make the lives of patients and their caregivers better. We're a small company of ~50 people who are mostly based in the GTA.

We are building on our core product such as deploying AI-powered agentic systems that work alongside agency coordinators to handle routine coordination, outreach, and administrative workflows to improve agency operations.

We are hiring:

Senior Staff Software Engineer: https://caribou.breezy.hr/p/37866c9bf96c-senior-staff-softwa...

Senior Analytics Engineer: https://caribou.breezy.hr/p/990e66f091e4-senior-analytics-en...

LiveMap | Geospatial Engineers (Data & Routing) | Full-Time | Switzerland or Remote (CH, EU, UK)

Visa sponsorship is not provided.

LiveMap is a funded startup with a vision to build the next generation of mapping apps (think hyper-personalised Google Maps). How that looks is still being explored so we're building prototypes, getting them into customer hands and iterating quickly. We're looking to bring on a couple of people to help accelerate this development process.

As a data engineer you'll set up a data pipeline, work with product to identify relevant datasets, connect, persist and expose that data.

Working on the routing engine you'll extend off the shelf routing engines (Graphhopper) to take into account dynamic run-time preferences & attributes (think temporal).

Please find more information and application forms at the links:

• Geospatial data/backend engineer - https://tally.so/r/68vdyB

• Routing engineer - https://tally.so/r/obdAY1

Happy hacking

Quadrature | Quant Dev | London, New York, Singapore | Full-Time | Onsite

We’re Quadrature, a technology company in the algo trading space. We use advanced machine learning on large amounts of data to predict trends in financial markets. More at https://quadrature.ai.

What makes us different:

- ~250 people, no traders — our systems trade autonomously.

- Single PnL.

- We don’t separate “quant researchers” from “developers” — everyone codes to a high level and has the opportunity to do research.

- Mission-driven: our climate foundation (https://www.qc.foundation/) has made significant divestment commitments over recent years. For many of us, it's why we're here.

We’re hiring Quant Developers — a generalist team of engineers and researchers who own both the research pipeline and software infrastructure across the entire business. Stack is Rust, Python and C++. We want sharp, collaborative people with no big egos.

Interested? Reach out here: li@qc.ai.

Better Stack | https://betterstack.com/ | /^Full-?stack Engineer$/i | Remote (North America & Europe)

We are software builders at :heart: CEO is a software engineer, COO is a software engineer, and you guessed it, CTO is an engineer, too. We are engineers, making the tools we always wanted. If you love building amazing software, you're at the right address.

We are looking for software engineers who, given enough time, could build Better Stack on their own = looking for full-stack product engineer generalists to help us create high-quality software with exceptional UX, end-to-end.

Apply at https://betterstack.com/careers/fullstack-engineer

How we operate: https://betterstack.com/careers – https://betterstack.com/careers/engineering – https://juraj.blog/

Checkly | Multiple Roles | REMOTE | Full time | https://www.checklyhq.com/ Checkly helps engineers build reliable products by unifying testing, monitoring and observability. OpenTelemetry, Playwright, and Monitoring as Code are our foundation for unifying performance and reliability. In 2024, we raised $20M in Series B funding from Balderton, CRV, and Accel to take things to the next level.

-Senior Software Engineer - Infrastructure (Remote, UTC-3 to UTC+3)

-Senior Product Engineer AI (Remote, UTC-3 to UTC+3)

-Senior Backend Engineer (Remote, UTC-3 to UTC+3)

-Senior UX Designer (Remote, UTC-3 to UTC+3)

See the full descriptions and apply here (and mention HN): https://jobs.ashbyhq.com/checkly?utm_source=hn

Hyperspell | YC F25 | San Francisco, ONSITE | $150k-220k + generous equity and benefits | hyperspell.com

I'm Manu, founder of Hyperspell. 14 Years ago I found my first job in tech through Who's Hiring. I take this job board seriously :)

Hyperspell is building Context & Memory for AI agents. We're at the intersection of "future of AI and agentic computing" and "this actually works". We're not just changing how our customers use AI in their products, but are constantly iterating on how we use AI to build Hyperspell, and what it means to be a software company in the decades to come.

We're hiring Forward-deployed (customer success), AI, and Platform Engineers: https://jobs.ashbyhq.com/hyperspell

Comment or reach out to founders@hyperspell.com with any questions!

I'm working on something similar, which is directly relevant to Hyperspell. Applied and reached out at the email!

I think this is really interesting... however I'm based out of Chicago. Would you consider a remote position with occasional travel?

Apply to Silkline!

Holepuch|Remote, Worldwide|Senior Node.js Software Engineer

At Holepunch, we are redefining the internet’s architecture. Our open-source P2P platform, Pear, enables developers to deploy applications directly from their machine to users, creating scalable, decentralized applications without traditional server infrastructure.

Why Holepunch?

- Work on groundbreaking technology that prioritizes user autonomy and privacy.

- Collaborate with a team of thinkers and innovators dedicated to reshaping the digital landscape.

- Contribute to a future where technology serves humanity, not the other way around.

Apply now to join our mission:

Senior FE Engineer: https://holepunch.recruitee.com/o/senior-frontend-engineer?s...

P2P Node.js Engineer: https://holepunch.recruitee.com/o/p2p-nodejs-engineer?source...

Senior Node.js Software Engineer: https://holepunch.recruitee.com/o/senior-node-engineer?sourc...

Mobile Engineer: https://holepunch.recruitee.com/o/mobile-engineer-react-nati...

Korva | Founding Engineer | New York City | ONSITE

Korva is building the AI-native operating system for health plan administration. Self-funded health plans cover 100M+ Americans, yet third-party administrators (TPAs) run them on manual processes and legacy software. We're rebuilding that back office with AI agents that automate high-stakes operational workflows. Getting this right matters — millions of Americans' coverage depends on it.

Founded by UC Berkeley alums with deep experience in healthcare data, payer integrations, and provider workflows. Pre-seed, well-funded, NYC-based.

This is a broad founding engineer role: you'll design core platform infrastructure from scratch, build and ship AI agents for TPA operations, own systems end-to-end, and at times embed directly with customers to turn operational knowledge into product. You'll work closely with the founders and shape both the roadmap and the engineering culture.

We're looking for someone with 2–5 years of SWE experience who writes clean, reliable code, has strong product instincts, uses AI as a core part of their workflow, and is comfortable in the ambiguity of an early-stage company. Interest in healthcare or complex regulated industries is a plus—domain expertise not required on day one.

Email hn ~at~ korva ~dot~ health with a bit about yourself and what excites you about this.

Sorry, no visa sponsorship at this time.

Trace Labs | Remote (USA) | Full Time | https://tracelabs.ai/ Want to join a lean, ambitious, and fast growing startup?

Trace is building the data marketplace for physical AI. Robotics and embodied AI are bottlenecked by real-world data. We’re building the platform that turns real-world human work into structured training datasets for robotics and foundation model labs. We’re hiring engineers to help build the core product from end to end.

Small, senior team. Fully remote. Experienced founders with a successful exit. Clear communicators. High trust, high bar.

Open Roles

- Full Stack Software Engineer: https://jobs.ashbyhq.com/tracelabs/963005ce-f4f1-4d54-957d-1...

- Backend Software Engineer: https://jobs.ashbyhq.com/tracelabs/a80546f7-6253-4dfa-95be-c...

What We Offer

- Autonomy, impact, and ownership. As an early employee you’ll shape the product direction and company values.

- Competitive salary and significant equity in a fast growing, early stage startup.

- Remote employment - work where you want, when you want.

- Generous vacation policy - take time whenever you need to recharge. Building a lasting company is a marathon, not a sprint.

Red Balloon Security | Security Researchers, Software Engineers | NYC, Northern Virginia | ONSITE, HYBRID | Full-time, Interns (paid) | US Citizenship Required | https://redballoonsecurity.com

We are a team of expert researchers and engineers focused on securing embedded devices. We work with partners across critical industries, and on government-funded research programs (think DARPA). "Full-stack" for us doesn't just stop at back end code; it means being comfortable with operating systems, firmware, and signals going over the wire. You'll succeed here if you are a quick learner who loves working independently on tough, technical problems nobody has ever solved before.

Day-to-day tasks might include:

* Tearing apart a device in our lab, reverse engineering its firmware, and finding security vulnerabilities

* Developing an automated, robotic platform for hardware reverse engineering (custom hardware, vision models, user interfaces, etc.)

* Hooking and patching RTOS kernel functions to execute defensive device integrity validation code, without violating real-time requirements

* Building scalable servers for processing millions of device telemetry messages across thousands of concurrent connections

* Maintaining open-source reverse engineering tools (like OFRAK https://ofrak.com) and cooking up fun demos for hacker conferences (like this web game we built for DEF CON in 2023 https://ofrak.com/tetris/)

Our main office is in Manhattan, but we are building out a new office in Northern Virginia. US citizenship required. Bonus points if you have an active security clearance, or are willing to get one.

https://www.linkedin.com/jobs/view/4367488549

I3W | https://i3w.ai/ | Multiple roles | Noida (On site) | Full time

I3W (Infinity Intelligence Innovation Wing) builds intelligent and scalable products across AI, design, and engineering, focused on solving real world problems with speed, clarity, and impact.

We are hiring for the following roles:

[1] Web Frontend Engineer – Noida (On site) [2] Backend Developer – Noida (On site) [3] AI/ML Engineer – Noida (On site) [4] Gaming Developer – Noida (On site)

Location: Noida, Sector 62 | Full time, On site | Monday to Friday | Minimum 2 years experience Immediate joiners preferred. Please apply only if open to working from the office.

Apply here: https://forms.gle/bN4Pfp62rsJGzok98 Send your CV to: bharat@i3w.ai CC: achal.tiwari@infinitylearn.com

LinkedIn: https://www.linkedin.com/in/bharat--agarwal/ Website: https://i3w.ai/

Please note that submission of the application form is mandatory to be considered for any role.

If you want to build fast, take ownership, and work on real products at scale, we would like to hear from you.

What’s up with all the flagged/dead posts at the bottom? I don’t see any pattern. This is relevant because I’d like to post a few jobs, but want to make sure I’m not breaking the rules somehow and get flagged/dead?

You're probably good if:

    - you're actually listing a job
    - the job pays money
    - the job pays a sane amount of money for the region in which you're hiring
    - you're actually trying to hire someone for the job
    - you don't demand they jump through stupid hoops like write an essay about Stendhal's views of modernity or your favorite unrolled loop from the GNU standard library
    - you don't come back every month for the next three years advertising the same job without hiring anyone for it
    - the business model isn't obviously delusional ("we're going to feed the global poor with AI, we just need to, uh, figure out some niggling little details")
    - you reply to inquiries and applications

- you don't come back every month for the next three years advertising the same job without hiring anyone for it

Placing a $100 bounty for anyone who can extend the "HN Hiring Pro"(1) extension with an adjustable filter to remove posts by companies that also posted last month, 2 months ago, etc.

1: https://chromewebstore.google.com/detail/hn-hiring-pro/mpfal...

Can pay via Zelle, ACH, Venmo, or Coinbase in USD or USDC.

Sure, happy to take you up on that

Farmer Sam LLC | Multiple Roles | Remote | Equity/Founding Team

We build AI-powered agricultural tools through the Claude Partner Network. Team holds CCA certification. Looking for people who want founding equity in a small, remote-first company doing real work at the intersection of agtech and LLMs.

Roles: Full-Stack Engineer, ML/AI Engineer, Agricultural Data Scientist, Business Development

Stack: Claude API, Python, React, geospatial data pipelines.

https://www.farmersamllc.com | hello@farmersamllc.com

Prior Labs | Berlin / Freiburg / NYC | ONSITE | Full-time | Multiple Roles

Tables power every clinical trial, financial model, and scientific experiment, but deep learning has mostly ignored them. No natural sequence, no spatial structure, no shared vocabulary across datasets. LLM architectures don't transfer. We built TabPFN, the first foundation model that actually understands tabular data (published in Nature, 3M+ downloads, new SOTA for tabular ML). The hardest problems are still open.

The model is half the product. The other half - training infrastructure, real-time serving, developer platform, reliability - is what turns a research breakthrough into something enterprises trust in production. We're hiring across both.

- ML Engineer, Training Infrastructure — Own GPU infrastructure, distributed training performance, and the developer productivity layer (CI, experiment tracking, model registry) that keeps research moving fast.

- Full Stack Engineer, ML Platform — Build the product that puts tabular foundation models in users' hands, from data upload through inference and results. You'll work across frontend, backend, and directly with the research team to turn new model capabilities into production features.

- Research Engineer, Foundation Model — Design experiments, run ablations, build training infrastructure, contribute to papers. Research engineers here aren't supporting scientists — they are the science team.

- ML Engineer, Cloud Platform — Design and scale the core infrastructure for serving and finetuning foundation models in production. Early enough that you're making the architecture decisions, not inheriting them.

Also hiring: Research Scientist, Applied Scientist, Forward Deployed ML Engineer, Developer Relations Engineer, AE, BDR.

20-person team selected from thousands applicants. Backgrounds from Jane Street, Google, CERN, G-Research. Led by Frank Hutter, advised by Yann LeCun and Bernhard Schölkopf. With backing from leaders at Hugging Face, DeepMind, and Black Forest Labs, XTX Ventures & Balderton.

All roles: https://jobs.priorlabs.ai

Hey! This link doesn't work.

This link seems to work https://priorlabs.ai/careers

Deepline | NYC (ONSITE) | Founding Full-stack Engineers and Forward Deployed Engineers | $160k–$220k + meaningful equity

User interfaces are dead. Knowledge workers will exclusively work through agent interfaces like Claude Code/Cowork. We've built the interface layer to enable that.

One API that unifies hundreds of data providers, workflows, and data infrastructure to agents like Claude Code. We shipped our mvp last month; hundreds of early adopters signed up and are using Deepline.

You’d build core platform: agent-facing abstractions, infrastructure, UI. TypeScript/Python/Next.js/Postgres. $3.3M raised from Lerer Hippeau + Looker founding team. Technical founding team from Uber, Lyft, Capchase, MIT, Waterloo.

https://code.deepline.com/careers

yes

RDE Advisors | Senior Full-Stack Engineer | REMOTE (Europe, LatAm, India) | CONTRACT | $4K–6K USD/mo

We're a boutique commercial real estate advisory in NYC building two production web applications: a CRE search platform and a property management platform with QuickBooks integration. Both are live with real users. Stack is Next.js 14, TypeScript, Supabase/Postgres, Prisma, Anthropic Claude API, Mapbox, Vercel + Contabo.

Hiring one senior full-stack engineer to take both products from early-stage to production-mature. You'll work directly with the founder — no engineering managers, no PMs, no committees. 35–40 hrs/week, 6-month minimum, exclusive. Rate is $4,000–5,000 USD/mo for India-based engineers and $5,000–6,000 USD/mo for engineers in Europe or Latin America.

Requirements: 5+ years full-stack, 3+ shipping production web apps, strong Next.js/React + TypeScript, shipped at least one production LLM integration (Claude preferred, OpenAI fine), 2+ hours daily overlap with NYC, available for a 30-min video check-in every weekday at 9:30am ET. This is a product engineering role that calls the Claude API, not an ML/research role.

Non-negotiables: you personally write 100% of the code (no subcontracting, no "my team"), video on for all calls, personal verified GitHub, Hubstaff time tracking, ID check + one prior-client video reference before contract signing.

Apply: https://forms.office.com/Pages/ResponsePage.aspx?id=bw3hQziC...

We respond to qualified applicants within one week. No DMs — please apply through the form.

Tufalabs | Senior research/engineers | Full Time | Zurich, Onsite | 100-200k CHF | https://tufalabs.ai/ Our current focus is arc-agi 3. We recently hired the top #2 kaggler to join that effort. We are looking for people deeply passionate about AI research. I am steering our work culture towards "live-to-work": If you wouldn't be doing AI research working somewhere else, then it is not a good fit. If you don't find yourself naturally reading about AI papers or doing random AI projects in your free time, then it is not a good fit. We have high expectations and a generous equity structure to match.

Tufalabs is an independent AI research lab in Zurich, focused on high-impact academic-style AI research and large-scale LLM development. We care about compute (currently, 6× DGX B200, 2× NVL72 GB300 incoming). Our mission is to push the frontier of AI science while open-sourcing results and building the engineering muscle to pre- and post-train cutting-edge language models. The ultimate goal is automating AI research, with a strong focus on alignment and safety in the limit.

We can only sponsor visas for people with EU nationality. The position is onsite, fulltime. We are self-funded, from what i call "self-propelled machine learning": I applied ML to cool domains and made returns that way. I can give more details about this privately. If interested, email me at benjamin at tufalabs.ai

GTM Engineer | TestGorilla

TYPE: Full-time

LOCATION: Remote - Spain, UK via EOR, the rest between UTC +2 to UTC +5:30 in our hiring countries via contract (https://testgorilla-1680540968.teamtailor.com/pages/hiring-a...)

REMOTE: Yes (async-first)

VISA: No

DESCRIPTION: TestGorilla is hiring a GTM Engineer to build and scale an AI-enabled GTM system across Sales, Marketing, and Customer Success.

This is not a traditional RevOps or Analytics role. You’ll design and implement workflows, automations, and integrations that make GTM strategy execute reliably at scale.

Build & maintain GTM workflows (HubSpot, Gong, integrations) Automate routing, alerts, deal rules, and inspections Translate revenue strategy into system logic Connect product, sales, and customer data Enable AI-driven GTM signals (e.g. deal risk, expansion) Reduce manual ops work through automation

You should have experience with GTM/RevOps systems and be comfortable working with APIs, integrations, and data flows. Systems thinking and ability to work from ambiguity are key. Interest in AI-driven workflows is a plus.

COMPENSATION: €54,840–€68,550 + SARs (equity)

JD: https://testgorilla-1680540968.teamtailor.com/jobs/7143357-g...

CONTACT: talent@testgorilla.com

Quick note, the main page gif video your landing page is a subpar ux. On slow connections (like in Bolivia) it loads frame by frame. I think a video player would be much better.

Innolitics | Multiple Roles | Fully Remote | https://innolitics.com

We help companies develop medical AI and navigate the FDA's regulations. We're industry leaders in a niche, growing space.

Medical Device Software Engineer (https://innolitics.com/join/medical-device-software-engineer...)

Senior Web/Mobile Medical Device Engineer (https://innolitics.com/join/senior-web-mobile-medical-device...)

Senior Regulatory Affairs Specialist AI/ML SaMD (https://innolitics.com/join/senior-regulatory-affairs-specia...)

Physician-Scientist (MD or equivalent) – Biostatistics & ML Development for Medical Device AI (https://innolitics.com/join/physician-scientist-md-or-equiva...)

Checkout our website for lots of details about what we do.

The required cover letter for a $120k-$130k/y job is 3 - 4 short paragraphs explaining why you're interested in Innolitics and this particular position.

It's like they are asking to waste their time reading AI spam. If they read it at all or just check length.

Sequent Tech | Senior Fullstack Engineer | REMOTE (Global) | Full-time | sequentech.io

Sequent builds cryptographically secure online voting infrastructure used in 200+ real elections across multiple countries. We're a fully remote team working on an open-source platform combining Rust, TypeScript, and modern DevOps. We handle End-to-end encrypted voting, cryptographic mixnets, and tamper-evident logging.

Tech Stack: Rust, TypeScript/React, WebAssembly, GraphQL, PostgreSQL, Kubernetes, Keycloak, ImmuDB

Open Roles:

Senior Fullstack Engineer (Rust + TypeScript/React)

PlantingSpace | Full-time | Remote (EU time zone) + Quarterly Meet-ups | https://planting.space

We're building a system that represents domain knowledge as modular probabilistic models — making analysis rigorous and transparent. Users can connect these models flexibly into larger structures. The system enforces consistency across them, and propagates uncertainty through each step. Our first applications are in finance and scientific research, with use cases ranging from equity valuation and distress monitoring, to particle physics.

This is an opportunity for builders and practitioners to help shape a deep-tech product from its earliest stage.

Current openings:

* Product Software Engineering (Quantitative Modeling)

* Program Synthesis Engineering

* Applied Category Theory Research

* Bayesian Software Engineering

We're also looking for Domain Experts to collaborate on high-value use cases -- identifying and validating opportunities, shaping them into working solutions with our engineers, and taking them from pilot to production with real users. Practitioners with expertise in Valuation Models, Quantitative Default-Probability Models, or Interest Rate Prediction Models are particularly relevant right now.

Find out more, and apply at: https://planting.space/joinus/

Questions? Get in touch: talent@planting.space

Tram Case - SRE - Fully remote Our client is revolutionizing legal technology with AI-driven tools that enhance efficiency and accessibility for legal professionals.

Technical Proficiency Must be proficient in several of the following:

DevOps & Cloud Competencies: CI/CD pipeline design, automation, and optimization. Containerization and orchestration (Docker, Kubernetes, ECS, or similar). Cloud infrastructure (AWS preferred) including compute, networking, IAM, and storage. Infrastructure-as-code tooling (Terraform, CDK, Pulumi, or similar)

Observability & Reliability: Monitoring, alerting, and dashboarding (Datadog, Grafana, CloudWatch, Prometheus). Logging architectures and distributed tracing. Incident response, root cause analysis, and performance troubleshooting

Engineering Workflows: Understanding of Git workflows, PR processes, testing strategies, deployment safety practices. Familiarity with API-driven systems, backend performance tuning, and data integrity patterns

Perks and Benefits

Remote-First Work Environment, competitive Salary, Unlimited Paid Time Off, Professional Development, home Office Stipend, Latest Tech Gear, Team Retreats and Virtual Events, parental Leave

Apply here https://jobs.hireatomic.com/jobs/492727-platform-engineer-sr...

For those looking at this, this role is only in Mexico.

MONUMENTAL | https://www.monumental.co/ | Amsterdam, The Netherlands | Full Time | Onsite We make robots that autonomously construct buildings. We are currently developing and manufacturing our autonomous bricklaying system in the beautiful centre of Amsterdam. And our robots are already earning real revenue operating on construction sites all over the Netherlands.

We're looking for experienced software engineers for many roles. You can help us solve problems like:

- Data sync and analytics queries across a fleet of robots (that can be offline for hours at a time)

- Modelling buildings in code and finding the right UI for operators to edit them

- Designing systems for robots to drive safely and fully autonomously around a building site

Check out the progress we've already made on Atrium, our operating system for robotics: https://www.monumental.co/atrium

We're rapidly scaling up operations and we need experienced engineers who can build the systems that manage all of that complexity. If you think that 'full-stack' could reasonably mean debugging firmware, mixing buckets of mortar _and_ writing React components, we are looking for you. Robotics experience not required!

https://www.monumental.co/jobs

Identity Labs | https://wellfound.com/jobs/4037860-creative-director-at-a-po... | Remote | Full Time

Identity Labs has generated 2B+ views across Twitter. We've worked with Bryan Johnson, Chamath Palihapitiya, Tony Fadell, partners at a16z, partners at Kleiner Perkins, and YC founders. We are a small team of 15 people.

If the 21st century gets defined by 100 influential ideas, Identity Labs wants to be instrumental in popularizing 10 of them.

We believe every founder who's built something massive has five Paul Graham level essays inside them. Our job is to find those essays and give them distribution.

We're hiring a Creative Director.

Your job is to sit with someone who built a billion dollar company, talk for two hours, figure out which idea from that conversation will make 10 million people stop scrolling on Twitter, then write it.

It's intellectual sparring plus longform journalism plus an obsessive understanding of what spreads on Twitter and why.

We're growing at 1500%+ YoY. A Creative Director can 5x their salary within 2 years as they grow into a Partner role.

https://wellfound.com/jobs/4037860-creative-director-at-a-po...

Curie | AI Engineer | Hybrid (Chicago), Remote (San Francisco) | Full-time

Curie is a telehealth platform combining clinical expertise with AI to deliver personalized, accessible care — intelligent intake, treatment matching, and AI-powered tools for clinicians. Team includes ex-founders, clinicians, and engineers from Stanford, Harvard, UCLA, Berkeley, and AWS. Well-funded and growing fast.

We're hiring an AI Engineer to own the microservice layer powering our clinical AI: agentic intake workflows, RAG pipelines grounded in medical guidelines, session/memory management for long-running clinical agents, and HIPAA-grade observability and safety guardrails. You'll shape the AI architecture of a healthcare product from the ground up.

Stack: Langgraph, Langfuse, Go, Python, TS, GraphQL, gRPC/Connect-RPC, PostgreSQL, GCP/Vertex AI, AWS Bedrock.

Looking for: 5+ years engineering, meaningful production AI/ML experience, LLMs in production (prompting, structured output, evals), RAG and agentic patterns, comfort across Go + Python + cloud. Bonus: FHIR/HL7, fine-tuning, healthcare AI background, startup experience.

Apply: https://jobs.ashbyhq.com/curie/cea56a9a-d238-4101-a56c-f94a4...

Join (https://join.build) | Senior/Staff Software Engineer | Remote | $175K–$205K + equity

Join builds collaboration software for the construction industry — helping contractors, owners, and architects coordinate on high-value projects. React, Golang, Postgres. We deploy to AWS via Terraform.

We're hiring multiple senior/staff engineers across a range of profiles: frontend-heavy, fullstack, and backend-heavy. We're especially looking for 1–2 engineers with architect-level frontend chops (React, TypeScript, state management, perf) who can own UI quality and level up the team. But we're also very interested in strong Go/Postgres or infra/ops backgrounds.

Day to day you'll write code (25–75%), review PRs (25–50%), and pair/mentor/document (10–20%). You'll act as a technical lead on projects, break down large efforts, and influence architectural decisions across the org. Small cross-functional teams with a designer, PM, and EM.

Stack: React, TypeScript, Golang, Postgres, GraphQL/Apollo, Vite, Cypress, Terraform, AWS (ECS, RDS, Lambda). We lightly use Elastic and are interested in event-driven patterns.

Fully remote, 100% employer-paid medical, 401(k), two company-wide shutdown weeks, continuing education budget.

To apply: send resume to jon@join.build. If you are able to please include a PR review you've given that had a positive impact (or a description/snippet if that's confidential).

Turquoise Health is a series C HealthTech startup, spread out remotely across the USA.

We are hiring for full time software engineers for our product engineering team to tackle the black hole of what is now America's healthcare revenue cycle. If you are a high performing full stack engineer who can be collaborative, innovative yet operates with no ego then we want you.

Our tech stack here is as follows: Python, Django, FastAPI, React, Typescript, Vue.Js etc

Engineering Manager, Data Products: https://jobs.ashbyhq.com/turquoise-health/e3b8b4e7-d1a7-4329...

Sr SWE, Consumer- https://jobs.ashbyhq.com/turquoise-health/f0c47e0e-ff1a-480c...

Sr Swe, Contracts-https://jobs.ashbyhq.com/turquoise-health/1d3ec150-1bf0-45df...

Tether is hiring multiple roles worldwide

We are a globally distributed, internet-native team of engineers, researchers, creators and builders working on technologies that scale to billions. We have zero interest in corporate red tape. We move fast, we ship industry-defining products, and we are fiercely dedicated to decentralization. If you are a brilliant builder ready to tackle foundational platforms in AI, finance, energy, and peer-to-peer tech, join us.

Apply now to join us:

React Native Developer (Worldwide): https://careers.tether.io/o/senior-react-native-mobile-devel...

React Native Lead (Worldwide): https://careers.tether.io/o/lead-mobile-developer-wdk-hacker...

Backend Developer for Wallets (Worldwide): https://careers.tether.io/o/backend-engineer-wallets-100-rem...

Fullstack Developer (Worldwide): https://careers.tether.io/o/senior-fullstack-developer-cosmi...

Product Manager (QVAC)(Worldwide): https://careers.tether.io/o/technical-product-manager-qvac-1...

Product Manager (Hadron)(Worldwide): https://careers.tether.io/o/technical-product-manager-hadron...

Product Manager (CosmicAC)(Worldwide): https://careers.tether.io/o/senior-technical-product-manager...

$20bn hedge fund, <20 employees | New York City (in person), full-time.

Compensation: $400+k total (base + guaranteed bonus), all cash. We will pay more for the right person.

We are looking for a very high skill and high energy software engineer who is familiar with production grade data+ML/AI infrastructure and automated data analysis, and who is interested in agent orchestration.

We are building a new system entirely from scratch that applies LLMs and multi-agent architectures to a problem that has never been successfully systematized. This is an R&D project - something we have never done before in 30 years of trading - to launch a completely new automated investment analysis system within an extremely fundamental/qualitative/Buffett-like investment framework.

The initial team will be 3 people – including you. You will be responsible for all software engineering. This is a very high leverage and high responsibility role, with huge capacity for personal development and role expansion.

We are doing this with huge rigor, energy, and substantial financial backing. You will be the founding engineer. You will design and build the system from scratch, i.e., the architecture, the infrastructure, the agent orchestration, the evaluation framework, everything. There is no existing codebase, no legacy system, no committee.

We are looking for someone who has been building with, or at least seriously thinking about, LLMs and multi-agent systems for the past 12+ months. You will have thought deeply about failure modes, evaluation, and context management. You will probably have tried multiple orchestration frameworks and found them all inadequate in different ways.

You need to be a seriously rigorous SWE. You should be comfortable setting up cloud infrastructure from zero and building production-grade systems, not just prototypes.

If this works, it and you become a core part of a $20bn fund. If it doesn't show sufficient promise after 12 months, the project winds down. You will be paid in full either way.

To start ASAP.

Please email: Cathedral.active.determine@proton.me

HostGPO | Full-time | Remote | $200,000 - $240,000 / yr + equity

We’re looking for a Lead Engineer to help shape the future of HostGPO’s platform, data systems, and technical direction. This person will be a senior builder and technical leader - someone who can architect and ship scalable systems, navigate messy real-world business logic, and partner across the organization to solve problems.

- Strong full-stack fluency, with particular preference for Python, JavaScript/TypeScript, and React - Experience building and scaling backend systems, APIs, data platforms, and large-scale web applications - Experience with GraphQL and modern application architecture

Apply here on LinkedIn: https://lnkd.in/ezEQr_FX

Apex Dental Partners | Full-Stack Developer | Dallas, TX (Remote US or Hybrid) | https://www.apexdp.com

We're a Dental Support Organization running 59 practices across TX/OK/CO/MO/IA/NE/TN/AZ. The unsexy industry description hides what's actually an interesting technical role: a small dev team with real ownership, pushing hard on automation and AI to make dental operations actually work well.

Stack is primarily Rails 7.1 (Hotwire+Stimulus.js), with some React/Electron, C# .NET (OpenDental), and tiny bit of Go — all on AWS.

You'd be joining a tight team where developers own problems end-to-end: from understanding why a billing workflow breaks down, to designing the fix, to shipping it. The domain is surprisingly broad — patient communication, PMS integration, payroll, clinical workflows — and there's no shortage of genuinely novel problems once you learn the business.

Good fit if you like: stable company, small team, broad latitude, and work that visibly matters to the people using it. Not a fit if you need a large eng org — but there's plenty of greenfield work as we're still actively building new features, not just maintaining legacy code.

Drop me a line: dhanson [at] apexdp.com

Starbridge | Senior Engineers (Kotlin/Java/React/Typescript) | NYC or Remote | Full-time | starbridge.ai Starbridge is building an AI platform that turns large-scale public and enterprise data into reliable sales insights. We are early, moving fast, and building from zero to one, so this role will have huge ownership and product impact.

Backend Engineer: (looking for Kotlin/Java/Scala experience). You'll work across the backend: building enterprise integrations, large-scale scraping and parsing pipelines, and systems that let users apply LLMs to millions of documents to generate insights at scale.

AI Engineer: Applied AI plus strong software engineering. You will build, evaluate, and deploy LLM-driven features like deep document analysis and interactive chat, working with models from OpenAI, Anthropic, and Gemini. Expect hands-on Python, ML system design, experimentation, and production reliability. Bonus for RAG depth and frameworks like LangChain, LlamaIndex, or Hugging Face.

We're looking to build our in-person team in NYC but also open to remote!

Apply: https://starbridge.ai/careers and mention HackerNews or email recruiting@starbridge.ai with your resume.

SPADE Agriculture| Full Stack Engineer | https://spade.ag | Remote (US Timezones) | Full Time

Spade is a Series A startup building a wide range of products for the dairy industry.

Think apps for farm data, machine vision for cows and next generation embedded microchips for animal health data (its not evil I promise).

We are building tools with data and AI to create Superhuman Management for both the supply chain ( we have a enterprise suite for the companies that buy and process milk ) and farms.

Our customers are the biggest food companies and biggest dairy farms on the planet.

We are looking for people who love agentic coding, are willing to own whole applications, and want to work with an application that works with real-world data from real-world farms.

Never heard of a Ralph loop? NGMI...

Our best developers have < 2 hrs of meetings a week, we aim to make that 1 hr.

We want to push the limits of what what low bureaucracy, high autonomy building can look like.

We have up to quarterly in person meetups depending on your location.

Good pay and benefits obviously.

Formal Job Post https://drive.google.com/file/d/1nOLxCZJuKNJAOvopil4dxUTppuR...

Apply Here From Hacker News ( not the email in formal post ): https://airtable.com/appgtIW1XInxyXKvn/pagtPpYqGVai0d0lZ/for...

Engineering Square | Business Development Representative | Remote (West Coast hours) | Full-Time | $55K-$70K + OTE $85K-$100K + Equity

Our client, a Series A legal tech startup ($9.1M raised from Foundry Group + top law firms), is hiring 6 BDRs to join their sales team.

You'll prospect outbound via phone, email, and LinkedIn to generate new opportunities, run discovery calls, and partner with AEs. Clear path to a closing AE role.

Looking for: 1-2 years outbound B2B SaaS sales experience, strong phone presence, 60-80+ dials/day track record, CRM familiarity (HubSpot, ZoomInfo). Legal tech, fintech, compliance, or HR tech background is a plus.

No visa sponsorship.

Apply: saikumar@engineeringsquare.us (subject: "BDR — Legal Tech — [Your Name]")

Puma.tech | Remote-first with PST overlap | iOS/MacOS, Android, Ai/ML, Growth | https://puma.tech

Hi all, I’m Yuriy, founder of Puma.tech. Prev. worked at Cloudant (YC S08), Meteor (YC S11), Parse (YC S11, Facebook/Meta), and explored AI/ML (computer vision for self-driving cars).

We have 3 products:

1. https://PumaBrowser.com – iOS & Android mobile browser with built in LLMs & Wallets. Private by design. 1m+ downloads.

2. https://PumaAI.com – privacy layer between you and LLM providers.

3. https://PumaClaw.com – (just starting to build) easier way to run and manage your Claws from the phone.

Help building either or all is much appreciated.

Open Roles: Eng (iOS/MacOS, Android, Ai/ML, Browser Extensions), Based Social Media Intern; Internships: Eng, Design, Growth

We’ve raised a few rounds from some of the best builders in crypto and ai:

Protocol Labs (YC S14), Chris Larsen (Ripple), Anatoly Yakovenko (Solana), Illia Polosukhin (NEAR Protocol), Sridhar Ramaswamy (Snowflake CEO), Jason Warner (poolside.ai, ex-GitHub CTO), Don Ho (Orange DAO, Quantstamp W18), Evil Rabbit (Vercel), John Phamous (SF Compute) and other amazing builders.

How to Apply: email careers+hn [at] puma.tech with your GitHub, a note on what you're most proud of building and what you'd like to build next.

Thank you!

Sumble is the newco from the founders of Kaggle. We are hiring full stack engineers, ai/ml engineers and growth/marketing. Can view our roles and apply here: https://sumble-inc.workable.com/

We are building a knowledge graph from web data with a first focus on data for go-to-market teams.

We use web data to identify things like org structure, tech stack, and key projects (e.g., GenAI initiatives, cloud migrations). Our product already has strong product-market fit, early revenue, and happy customers — and now we’re ready to accelerate.

Our long-term vision is to become the world's best data vendor. Try the product at sumble.com.

We are a team of 25 with experience at companies such as Google, Meta, Stack Overflow, Rippling, Snowflake, Confluent and Kaggle.

We raised $38.5MM from Coatue, Canaan, Square Peg Capital https://techcrunch.com/2025/10/22/sumble-emerges-from-stealt...

I think it's a bit strange you require a sign-up as part of your application process.

CrazyGames | https://about.crazygames.com/ | REMOTE (in Europe) | Full-time | Multiple roles

With recent technologies such as WebGPU and WebAssembly, the browser is quickly becoming a powerful gaming platform. High-quality 3D graphics and near-native level performance are now possible without the need for downloads, apps, or platform-specific development. Our browser games platform is already reaching 50 million people per month. We are self-funded, profitable, remote-first, and fast-growing.

We are currently looking for multiple people to bring our engineering, product, data, and adops to the next level.

Please note that we're looking for people who can work on a European timezone and are ideally based in Europe (which includes the UK for those in doubt).

* Product Engineer: https://crazygames.recruitee.com/o/remote-product-engineer-3

* Product Manager (Game Experience): https://crazygames.recruitee.com/o/remote-product-manager-ga...

* Ad Operations Manager: https://crazygames.recruitee.com/o/remote-ad-operations-mana...

* QA & Automation Manager: https://crazygames.recruitee.com/o/remote-quality-assurance-...

Wow, my niece plays this with me sometimes. We like the tag games! I'm not familiar with game dev nor live in Europe though.

Nice to know in runs a pretty modern tech stack, even if it nostalgically reminds me of the old game sites running on java applets. :)

Findigs | Full-time | NYC | 3x/week in office (M,T, Th) | findigs.com

At Findigs, we’re transforming the rental experience — making it fairer, stress-free, and more convenient by changing the fundamentals of renting.

We build high-scale applications that streamline renting for millions. Our modern tech stack includes Python, Typescript, Node.js, React, and scalable cloud infrastructure.

We foster a collaborative culture where engineers have high ownership and autonomy, taking features from concept to deployment.

Join our sharp, supportive, and mission-driven team in our newly renovated SoHo/NoHo office.

Open roles:

Lead Software Engineer (https://jobs.lever.co/findigs/1ea92751-1c85-4eb6-84b4-86c529...)

Senior Software Engineer (https://jobs.lever.co/findigs/3b39616d-223f-4326-a500-f804c3...)

Mid-Level Software Engineer (Mid-Level) (https://jobs.lever.co/findigs/5e865781-244f-4e4f-b7bd-e09973...)

Competitive Base Salary plus Pre-IPO Equity

401k Matching up to 4%

Unlimited PTO

Lunch in office every day, home office setup stipend, monthly gym stipend

LingoLooper (https://lingolooper.com) | Lead Content Strategist | REMOTE (Europe-friendly) | Part-time → Full-time

LingoLooper is a language learning game (1.4M+ downloads, iOS/Android) where users practice real conversations with AI avatars. Play life abroad to learn a language faster.

We've grown almost entirely through organic short-form content. We're hiring a Lead Content Strategist to own our content operation: directing UGC creators, analyzing performance data to build repeatable formats, running structured experiments, and building the systems that scale output. Think content strategy as engineering; hypothesis-driven, iterative, data-informed.

Starts ~30h/week ($750/week + performance bonuses), designed to convert to full-time with exit participation. You'll work directly with the founders.

Apply here: https://tally.so/r/GxJvAQ

Immunera | Principal Machine Learning Engineer | NYC area (hybrid) | Full-time | immunera.ai

Hey! I’m Maxim, cofounder/CEO of Immunera.

We're building blood tests that use gene sequencing and machine learning to help patients with autoimmune disease. Immunera spun out of years of research at Stanford, and our technology has been published in Science and covered by The New York Times.

We're hiring a Principal Machine Learning Engineer to shape the core models and infrastructure that power our blood tests. We are partnering with hospitals to generate training data from real patients for our language models and other biological sequence models.

This is a senior engineering role with significant autonomy at an early-stage, venture-backed startup. We're looking for strong experience building and operating ML systems in production (Python, PyTorch/TensorFlow, cloud platforms). Prior biology or healthcare experience is NOT required; we care much more about your ability to reason about data, models, and systems.

Full JD: https://www.immunera.ai/jobs

Contact: maxim@immunera.ai (subject: “HN ML job”)

Twindo (Formerly Canvas; The Spatial Computing Company) | Full-time | Remote

At Twindo, we’re working on spatial computing - using computer vision to 3D reconstruct and understand your surroundings so that software can operate over real-world spaces.

Twindo brings together everything that professionals need to understand the spaces they design, build, and manage, without extra site visits or second-guessing. With a quick scan or plan upload, any space becomes structured, accurate, design-ready data your whole team can actually use.

- Backend Engineer (Europe or LatAm Remote) - Full Stack Engineer (Europe or LatAm Remote) - iOS & Backend Engineer (Europe or LatAm Remote)

For detailed information check out https://www.twindo.com/careers/ or email jobs@twindo.com

Keywords: 3D, computer vision, photogrammetry, geomatics, SLAM, CAD, iOS, Python, Django

Pango | Senior Software Engineer - Full Stack, Technical Lead / Software Engineer | On-site (hybrid) in Stockholm, Sweden (Visa Sponsorship possible) | Full time

Pango is building the world's first Agentic Operating System for e-commerce logistics. Our vision is to create the AI e-commerce employee of the future. We are forming our core team in Stockholm and are looking for exceptional engineers. We have achieved a product-market fit and are growing rapidly.

You are a good fit if:

* You are comfortable maintaining, expanding and operating a substantial chunk of a B2B SaaS platform with a high sense of ownership.

* You are happy to take on work that in a large company is divided into multiple roles, and execute it all at an excellent level.

* You are unafraid of any technology. If we need a desktop app and you haven't done one before, you will study the documentation of Electron.js and build one. If a model for predicting delivery times is needed, you will do a literature review to find the right architecture and train one.

* You have strong proficiency in any backend language or platform, with a strong willingness to dive deep into PHP/Laravel OR strong proficiency in JS/React.

* E-commerce (Shopify, Magento, other platforms, shipping carrier integrations) experience is a plus.

* Extra points if you write the initial email - however short - using your own words.

You will take a key role in shaping the product and company, with ability to make an impact and advance career limited only by your aptitude and interest.

Reach out to lukasz@pango.ai if you are interested or have any questions. We review applications immediately and move quickly.

Rad AI | We're rapidly staffing-up our new office in San Francisco at 2nd & Market! Empowering physicians with best-in-class AI radiology solutions to save time, reduce burnout, and improve patient care. Series C with tremendous momentum.

High-priority technical roles in Engineering Leadership, Senior Cybersecurity Analyst, Infrastructure Engineering, Head of Continuity Product, and several more roles.

See all open roles and apply here >> https://www.radai.com/careers?utm_source=W29wy29rlJ

All currently open roles are on-site San Francisco.

BrandMultiplier | Head of AI & Engineering | REMOTE | Fractional-to-Full-Time | Equity

We're a profitable B2B services company ($3M–$50M ARR clients) actively building a proprietary AI platform — and we need the technical leader to own the execution.

WHAT WE'RE BUILDING: A multi-agent AI platform that operationalizes our founder-story methodology into deployable client systems. Architecture spec exists, pieces are already in production. We're not starting from scratch — we're scaling a real build.

THE STACK: LLMs (Claude, GPT, Gemini), multi-agent orchestration (LangGraph/LangChain), RAG pipelines, vector databases, React/Next.js, Python/Node.js, AWS, n8n/Make for automation.

WHAT MATTERS MOST: You're not just an executor. You come to the leadership table with tools and approaches we haven't seen yet. You translate the CEO's vision into a technical spec, a build plan, and a shipped product — without needing everything pre-defined.

THE TEAM: 4 core people. You'd join the CEO, a Growth Strategist, and an Operations Manager — and lead one AI Engineer (your first direct report).

ENGAGEMENT: Starts fractional with a clear path to full-time and equity for the right fit. We're not VC-funded by design, so equity is unencumbered.

Read the full spec here: https://www.notion.so/brandmultiplier/Head-of-AI-Engineering...

The multi-agent + RAG combo is what I'm living in right now. At AmberFlux EdgeAI I'm building SHEELA — an intelligence layer that crawls, scores, and runs controlled self-improvement loops on top of a FastAPI/PostgreSQL infrastructure backbone I architected from scratch. LangGraph for the agent orchestration, async pipelines throughout. But the project that feels most relevant to what you're describing is something I built earlier — a Persona RAG system that fused Karpathy, LeCun, and Mollick's thinking patterns from their writing and talks into a Telegram bot that responded in their synthesized voice. The whole point was: how do you get a specific person's reasoning logic out of their head and into a system. Sound familiar? Also built RepoGuard — a LangGraph + Groq Llama 3.3 70B agent that reads GitHub PRs and issues and surfaces intelligence from them. And shipped Repoverse, a full Next.js + iOS app to the App Store in 175 countries. On the client side — I run Pixel Elevate, an AI automation agency where I've built and delivered systems for clients across the US, UK, and Canada. So translating a non-technical founder's vision into a shipped product, managing expectations, and owning the outcome end-to-end isn't new territory for me. I'm a final-year engineer graduating May 2026, so I won't pretend I've managed engineers. But I've managed clients, shipped production systems solo that real users depend on, and I use Aider + Claude Code + Cursor as daily drivers — not as novelties. The Persona RAG bot feels like the most honest answer to your "system you're proud of" question. Happy to walk through it. Filling out the interest form now. GitHub: https://github.com/mandanajignesh-byte | HuggingFace: https://huggingface.co/Jignesh2619

LinkedIn:www.linkedin.com/in/jignesh-mandana-936405349

InfoMarines Inc | Senior Java Developer | Denver, Colorado, USA | Onsite / Remote | $156,000 - 156,000 / year | Full-Time

We are excited to announce an opening for a Senior Java / Mainframe Application Developer to support our client with enterprise-scale software systems. This role allows for 100% remote work, and you will be part of a dynamic and collaborative Agile team focused on modernization initiatives. We offer a comprehensive benefits package including health, dental, vision insurance, life insurance, a 401(k) plan, and paid time off. Join us in supporting mission-critical processing systems for the IRS and be an integral part of our innovative team.

More details and option to apply: https://devitjobs.com/jobs/InfoMarines-Inc-Senior-Java-Devel...

Radar Labs | Software Engineers (SRE, data platform, backend, full-stack, mobile) | Remote (US), NYC | Full Time | https://radar.com

- Radar is the geo-location dev tool

- Doing 1B+ API calls per day

- Our main languages are Rust and TypeScript, we also use mobile and offline pipeline languages (Python, Scala, and Terraform).

- We're based in NYC with our HQ in Union Square and remote friendly (US)

Interesting things we're working on:

- HorizonDB, our Geospatial database written in Rust

- Precise indoor location more accurate than iOS and Android leveraging Ultra-Wideband, other mobile sensors and ML.

- Extracting raw map data from satellite maps and the web leveraging ML and AI

- Anomaly detection to identify spoofed locations

- Mobile infrastructure that automatically configures itself optimizing battery-life and location accuracy for different use-cases over time

- Multi-Region AWS K8s deployment, 99.99%+ availability

- Frontend tools to visualize and debug location data at scale

Check out our jobs page here: https://radar.com/jobs#jobs If you have any questions, feel free to reply here or you can e-mail me at tim@radar.com

Blackshark AI | Software Engineers & Platform Engineers | Full-time | Austria or Remote EU Hours | VISA sponsorship available

We build geospatial AI infrastructure. Our platform lets analysts train custom object and change detection models on satellite/aerial/drone imagery in minutes, then reconstructs 3D terrain from those detections. We just shipped a planetary-scale simulation platform with Lockheed Martin powered by Unreal Engine.

If you want to work on distributed systems that run in a data center one day and an edge laptop the next, we have interesting problems. Our training and inference infrastructure is processing trillions of pixels and we deliver real world impact for our customers across defense, intelligence, and local governments.

Tech Stack: Python, Fast API, PyTorch, Postgres, Redis, Vue.js

Infrastructure Stack: Kubernetes & Docker, Linux, AWS & Azure, Azure DevOps, Terraform, ELK, Prometheus & Grafana, ArgoCD & Helm

Roles:

Software Engineer - Frontend UI https://jobs.eu.lever.co/blackshark/5c596b85-5134-4601-be25-...

Software Engineer - Data Plane Team: https://jobs.eu.lever.co/blackshark/6110fedd-5cd8-40e5-ac11-...

Platform Engineer - Deployment Team: https://jobs.eu.lever.co/blackshark/56a85834-d986-4105-9cc8-...

or reach out to HM with questions at: 'eivanov@' + username[:-2] + '.' + username[-2:].lower()

Coder | https://coder.com/ | Multiple roles | Multiple locations | Full-time

Coder is an AI software development company leading the future of autonomous coding. We empower teams to build software faster, more securely, and at scale through the collaboration of AI coding agents and human developers. Our mission is to make agentic AI a safe, trusted, and integral part of every software development lifecycle.

Coder’s self-hosted Agentic Development Environment (ADE) is the foundation for deploying agentic AI in the enterprise. It provides a secure, standardized, and governed workspace to deploy autonomous coding agents alongside human developers, accelerating innovation while maintaining control and compliance. Coder's isolated, policy-driven environments improve productivity, cut cloud costs, and reduce data risks. Developers transition to AI at their own pace using their own tools. Platform and security teams can govern, audit, and manage a great developer experience at scale.

We passed 100k stars on GitHub! https://github.com/coder

All positions are fully remote in the countries listed unless otherwise specified.

[1] Senior Software Engineer, Core Platform (back-end Go) - US/Canada

[2] Software Engineer, Core Platform (back-end Go) - US/Canada

[3] Software Engineering Manager - UK/Ireland/Poland

[4] Product Designer - US East Coast/UK/Ireland/Poland

And more! Apply here + job descriptions, salary bands: https://coder.com/careers?utm_source=O2n5Ew72WD

Not all of our jobs are listed here. Please note that you must submit an application to be considered for any of our positions. If you have any questions, please reach out to careers@coder.com.

Atria | Global Remote (almost anywhere) & Hybrid NYC | 10 Engineering roles Atria Health (https://www.atria.org) | product eng, devops eng, platform eng, ...

Our team is operating with the special combination of rigor, empathy, and innovation required to fuel a global shift from reactive sick care to preventative, precision healthcare.

Technologies: Express, React, GCP, Terraform, DBT, MySQL, Snowflake

Apply here: https://apply.workable.com/atria-health/

A human will read every resume sent to hackernewshiring@atria.org

------------------

P.S: We have a new role coming up: Staff SWE, Agentic AI. This role will drive the vision and implementation of agentic AI across our engineering, product, and design teams and later our broader company (clinicians, hospitality teams, ...). This is a special role where we're looking for someone with a strong engineering background who is on the frontier of agentic development. Please express interest via email.

AI x Healthcare Startup | Boston, MA Onsite | Full-time | Early Engineer

We're looking for a backend-leaning fullstack dev. You will be one of the first engineers outside of the founding team. Here is a bit more about us: We're a seed stage AI startup backed by top tier investors. We're on a mission to ensure every patient gets covered for the care they need and every doctor gets paid for the work they do.

We’re building deep, vertically integrated technology systems to solve fundamental problems in US healthcare - the biggest market in the world ($5T). We use AWS, K8s, React, and Rust but there is no requirement to have prior experience with them specifically. We'll teach you!

We are a founding team made up of ex-YC, Amazon, Meta, Microsoft, and Harvard Business School with previous successful exits.

You’ll own entire product areas and be expected to play a true full-stack role, with the ability to go from customer need to end-state product. You’ll work directly with the CTO at the edge of what's possible with LLMs and agentic systems applied to a hard domain. You'll contribute to technical strategy, make real architectural decisions, and write vast amounts of production code with AI first developer workflows. Most importantly, the technology you build will have real impact on real people - clinics staying open, clinicians getting paid, patients getting care.

This is an opportunity to work in a fast paced, high ownership environment while solving real problems in healthcare.

We're happy to share more details on the role in person/on zoom. Please fill out this form if interested!

https://wgwx7h7be0p.typeform.com/to/LV0t8OjI

Applied through the form. Your Rust/agentic stack is a strong fit for what I'm working on. Looking forward to hearing more.

I love your mission. Alas, I am not able to work on site in your location. Hope you guys make it big!

Ridgeline International | Software Engineer, Full Stack (Angular and Java) | REMOTE (US) | Full-Time

Ridgeline International builds software that fights Ubiquitous Technical Surveillance (UTS), which is the growing threat of everyday commercial devices, apps, and networks being used to passively collect data on people and organizations without their knowledge. Think smartphones, smart TVs, IoT devices, and third-party apps leaking sensitive behavioral and location data at scale. Our tools help U.S. government and enterprise customers understand and manage that exposure, often before they even realize they have a problem.

This is a genuinely full-stack role. You will own features from design through deployment, working with Java (backend), Angular (frontend), REST and GraphQL APIs, SQL databases, and cloud infrastructure with DevOps workflows. For the first four months you will support legacy systems built on C# and Azure, then transition to our modern core platform. That bridge phase is intentional, not a bait-and-switch.

What you need:

U.S. citizenship required, ability to obtain a security clearance 5 or more years of professional software development Strong OOP fundamentals and relational database experience Comfort with REST APIs and a genuine growth mindset

Bonus if you have: Java or Angular experience, GIS or mapping work, DevOps and CI/CD, or containerization (Docker, Kubernetes).

Perks include flexible PTO, a generous 401k match up to 10% with automatic 3% safe harbor, full health benefits, HSA employer contribution, professional coaching, and personal privacy protection services.

We are the hiring company, not a recruiter.

Apply here: https://smrtr.io/y462n

Kai | Engineering (Multiple) | Onsite (San Jose, CA) | Full-time

Ai + Cybersecurity. Our Ai team is well funded, and growing. Although we have a dedicated engineering team, the Ai team is looking for dedicated engineers to work closely with the applied Ai scientist to build the platform and pipelines.

Principal Software Engineer, AI Platform: https://ats.rippling.com/kai-cyber-inc/jobs/a6d62968-4831-42...

Senior Software Engineer, AI Platform: https://ats.rippling.com/kai-cyber-inc/jobs/d567048a-7b1b-4e...

We are also looking for a few more applied Ai scientists as well as many other roles. I invite you to take a look:

https://www.kai.security/careers#open

Trustle | Customer Success Engineer | Remote (US) | Full-time | Pre-Series A

We enforce Zero Standing Privileges across cloud and SaaS — AWS, GCP, Azure, Snowflake, Okta, GitHub, and more. Access is requested just-in-time and disappears when the job is done. We are a small team and AI is core to how we work.

This role sits between customers, the CEO, and engineering. You'll build real multi-cloud demo environments (not toy setups), run technical sales conversations, own customer onboarding, and create technical content grounded in actual depth. When you find a product problem, you'll file it and often see it fixed the same week.

You should have: Comfort scripting and hitting APIs to automate your own work Basic cloud familiarity (AWS, GCP, or Azure) — you know what a role and a service account are

Experience in customer-facing technical conversations A habit of publishing: blog, GitHub, videos, etc

Bonus: IAM/cloud security background, experience with agentic AI/LLM workflows, GCP stack (GKE, Cloud SQL, Cloud Run)

Pre-Series A means your work directly shapes product and GTM. Cloud access management is one of the fastest-growing problems in security — this is a good place to build expertise at the center of it. Interested? Contact us careers (at) trustle.com | https://trustle.com

Deducta | Senior Backend Engineer | London, UK (Hybrid) | deducta.com

Company: We’re a data intelligence platform for global enterprises. We are well funded, growing fast, and actively solving the most pressing data challenges for some of the largest and most recognizable companies in the world.

Role: We’re looking for a Senior backend engineer with a strong sense of software craft and solid .NET/Scala experience to be part of the design/building/maintenance of our core systems. Specifically: - Architect, build, and maintain data ingestion and processing engines for enterprise scales with ultra-high reliability

- Drive business growth through a combination of ideation and experimentation to optimize our product, and front-line problem solving for our customers

Stack: .NET, SQL, Azure

Comp: £150k+

Process: Screen —> Technical —> Final interview —> Offer

Contact: kimathi [at] deducta dot ai / Apply: https://apply.workable.com/deducta/j/51567707C5/

HumanSignal | https://humansignal.com/ | REMOTE North America, South America, Europe | Full-time | Engineering roles

We created Label Studio (https://github.com/HumanSignal/label-studio/), which has quickly become the most popular open source data labeling and AI evaluation platform with 350K+ users around the world and millions of annotations each month, alongside a community of thousands of data scientists and ML engineers sharing knowledge and working to advance AI.

We're a remote team full of people passionated about open source and AI. We are very pragmatic and strong team players.

We are looking for multiples roles to support the growth of Label Studio:

- Senior Backend Engineer: https://boards.greenhouse.io/humansignal/jobs/4291492004

- Senior Frontend Engineer: https://boards.greenhouse.io/humansignal/jobs/4630367004

- Senior Full Stack Engineer: https://boards.greenhouse.io/humansignal/jobs/4803399004

- AI Engineer (GTM): https://job-boards.greenhouse.io/humansignal/jobs/5828847004

See https://boards.greenhouse.io/humansignal for more openings.

---

HumanSignal Service is looking for AI trainers for the next frontier of AI. Especially of interest:

- Graphic Designers

- Content Creators (Social Media)

- Podcasters/Voice Actors

- Medical Experts

- Automotive Experts

Apply here: https://join.humansignal.com

SafetyWing | 100% Remote | Hiring Globally

At SafetyWing (YC W18), we’re building a global social safety net for remote workers—simple health, insurance, and retirement products designed to replace national welfare systems. Our mission is to remove geographical borders as a barrier to equal opportunity and freedom for everyone. If we succeed, we believe this will be one of the most important tasks of our time.

- General Manager, Nomad Insurance: https://safetywing.pinpointhq.com/postings/507a7c5e-f44d-411...

- Partnerships Manager: https://safetywing.pinpointhq.com/postings/b07c1584-3eac-485...

- Platforms Business Partner: https://safetywing.pinpointhq.com/postings/9df843c6-ef5c-4b1...

Cultivate AI | Senior Software Engineers | Durham, NC | Hybrid (open to remote)

We're building an AI platform for credit unions. A variety of tools (third party integrations + RAG) backed by multiple LLM options, including OLMo, running in our own AWS infrastructure. We're a small team (I'm CTO and our first technical hire) so you'd have real ownership over the AI stack and architecture.

You'd work on retrieval over heterogeneous corpora with citations, agent orchestration and tool calling, model serving infra, and third party API integration. There's a lot of room to experiment with hierarchical retrieval, heavier upfront document processing, and custom agent tooling. Over time we're going to expand into fine tuning, more direct compute management, and some interpretability work.

Stack: Python/FastAPI, React, PostgreSQL/pgvector, AWS/OpenTofu. Looking for someone with a few years of experience building production systems.

Email me at talati@getcultivate.ai if you're interested!

Cloud Data Engine (CDE) | Experienced Python Software Engineer | France | HYBRID

We’re hiring an experienced Python engineer to work on a platform for compliance monitoring and interoperable service catalogues.

You’d work on backend services, REST APIs, compliance pipelines, rule engines, JSON-LD/RDF, Verifiable Credentials, and regulatory-to-technical rule translation.

Stack: Python 3, FastAPI, async, RDF4J, Docker, GitLab CI/CD.

Looking for: 5+ years Python in production, strong API/data modelling/system design skills, fluent French, professional English.

Nice to have: RDF/SPARQL, Kubernetes, LLM pipelines.

Apply via Linkedin: https://www.linkedin.com/jobs/view/4399261912/?refId=hjnUg4M...

Arcol | Senior Software Engineer | NYC, SF, or Remote (US/Canada) | Full-time

Arcol (arcol.io) is a small, high talent density team building the future of building design - a future that's collaborative, fast, and intuitive. We're a web-native, fully collaborative 3d design tool modernizing the experience of architectural design for teams of all sizes.

We're looking for senior engineers with experience in modern web technologies - some of our key technical building blocks are Typescript, Rust, wasm, WebGL - and a strong ownership mindset. Experience with computational geometry, computer graphics, or similar a strong plus. This role sits at the intersection of solving deep technical foundational challenges with shipping a product that solves real problems for real people.

Reach out to me directly at thomas@arcol.io or peruse our careers page (https://www.arcol.io/careers) - we'd love to hear from you!

Matterworks.ai | ML Scientist & Engineering | Remote or Hybrid (Boston/Somerville MA)

At Matterworks we are building AI tools to extract insights from the ever-growing corpora of biological data and to unlock opportunities in therapeutic discovery, development, and manufacturing. We are building large-scale deep learning models of biological data to predict the phenotype and behavior of biological systems.

Senior ML Scientist - https://jobs.ashbyhq.com/matterworks/41be74b6-c7cf-4ad3-a908...

Data Manager - https://jobs.ashbyhq.com/matterworks/5a5f7cd3-bf06-4238-b3e6...

WireScreen (Series A) | Senior Product Manager | NYC - hybrid | Full-time | $175k-$215k base + equity | https://jobs.ashbyhq.com/wirescreen/3c97417f-45f1-4480-8d38-...

WireScreen is a fast-growing Sequoia-backed Series A startup building the go-to open source intelligence platform for navigating global supply chains and China-related risk. While China maintains some of the world’s most detailed corporate ownership records, the real challenge is connecting the dots. That’s where we come in—surfacing the networks, relationships, and financial ties behind companies to support national security, compliance, and regulatory oversight.

We’re looking for a Senior Product Manager to join us in an early stage product role that represents an opportunity to define the future of WireScreen’s flagship product. You’ll be part of a small team working directly with company leadership, take full ownership of brand new products, and have a meaningful impact on the future of corporate transparency around the globe.

If you have prior startup experience, have worked on at least one data product (or have strong data chops), and bring 6+ years of PM experience - we’d love to talk to you.

Apply here: https://jobs.ashbyhq.com/wirescreen/3c97417f-45f1-4480-8d38-...

Or you can reach out to me directly with questions or your resume at leo.green@wirescreen.ai - I lead recruiting here at WireScreen, but if I don't know the answer I'll ping our engineering folks and come back to you fast. If you think this role isn’t at the right level for you but are interested in working here, let me know!

Flow Traders | Research Engineer | Hong Kong (onsite) | Full Time | Visa | Relocation

Flow Traders is a leading proprietary trading firm with an entrepreneurial and innovative Tech culture at the heart of its business. We are looking for Research Engineers in our Hong Kong office.

Join us build and scale the research framework behind our systematic trading models. You’ll work closely with Quantitative Researchers, drive end‑to‑end ML pipelines, and shape global standards for data‑driven model development. Research Engineers have joint responsibility for conducting research and delivering models.

You’ll thrive if you have: - 8+ years in ML / Data Science / Research Engineering (Postdoc/Faculty can count towards this); - Strong Python and libraries such as Ray, numpy, PyTorch, and pandas; - Solid math/stats background; - Experience with modern dev practices & cloud technologies.

If you're interested, apply here: https://lnkd.in/dWhh_m28

Or if you'd like to see other roles at Flow Traders, please check our careers website: https://flowtraders.com/careers/

Redpanda Data | REMOTE | Full-time | https://www.redpanda.com/careers

Redpanda is pioneering the Agentic Data Plane (ADP) - a new category in AI infrastructure that makes it simple and secure to connect AI agents with enterprise data and systems. Built on a multi-modal data streaming engine, Redpanda empowers agentic applications that reason and act in real-time with speed, autonomy, and precision. Global leaders including Activision Blizzard, Cisco, Moody's, Texas Instruments, Vodafone and 2 of the top 5 banks in the U.S. rely on Redpanda to process hundreds of terabytes of data a day. Backed by premier venture investors Lightspeed, GV and Haystack VC, Redpanda is a diverse, people-first organization with teams distributed around the globe.

Software Engineer, Core Enterprise - https://job-boards.greenhouse.io/redpandadata/jobs/465284300...

Software Engineer, Core SQL - https://job-boards.greenhouse.io/redpandadata/jobs/465929600...

AI Agent Engineer - Poland - https://job-boards.greenhouse.io/redpandadata/jobs/467804300...

Hello. Is the last one available also in Greece except Poland?

AI engineer and Fullstack Engineer We are vysr GmbH, an early-stage startup on a mission to reinvent performance management for asset‑intensive industries. Using AI‑powered performance mining, we identify improvement potential, recommend high‑impact actions, and help organizations run asset management in a strategic, value‑driven way.

We're continuing building the platform to grow post MVP — and we’re looking for an engineers who want to build the application further

Your Responsibilities (AI engineer)

Develop, train, and optimize machine learning models for performance analysis, forecasting, and automated recommendations Build scalable AI services that integrate seamlessly with our cloud‑native backend Collaborate on the design of data pipelines and feature engineering processes Work with structured and unstructured data from enterprise systems and operational sources

Influence architectural decisions for our AI stack, from model serving to real‑time inference

Your Responsibilities (fullstack engineer) Build and scale frontend and backend systems from scratch Develop modern, responsive user interfaces using React, Tailwind CSS, or Material UI Implement REST and GraphQL APIs and integrate with complex enterprise systems such as SAP S/4HANA Design and maintain data pipelines and database architectures (e.g., PostgreSQL, Snowflake) Build real‑time features using WebSockets or Server‑Sent Events (SSE) Implement secure and scalable authentication and authorization (e.g., OAuth2, JWT, SSO)

Location: Onsite in Germany: Munich or Berlin --> please only apply if you are located in either of these cities Contact: steffen@vysr.io LinkedIn: www.linkedin.com/in/steffen-medele

Instinct Science | Senior Software Engineer (React Native) | REMOTE (US) | Full-Time | $130K–$160K

Instinct Science is the AI leader in veterinary medicine. We build the industry's first clinical intelligence platform — combining a cloud-native EMR, AI-powered scribing (ScribbleVet), real-time clinical decision support, and Plumb's drug information — in one system that helps veterinary teams work smarter, not harder. We acquired ScribbleVet in early 2026 and are building out its next chapter.

This role is embedded directly in the ScribbleVet product team. You'll own the mobile app used daily by thousands of veterinarians to automate clinical documentation.

WHAT YOU'LL DO: - Build and own cross-platform features end-to-end in React Native (iOS + Android) - Identify and resolve performance bottlenecks — state management, native bridges, CI/CD - Ship real AI-powered features alongside a small, high-output team - Collaborate closely with design, product, and backend engineers

WHAT WE'RE LOOKING FOR: - Deep React Native expertise with production mobile app experience - Strong product instincts and QA discipline — you care about what you ship - Actively using AI coding tools

STACK: React Native, Expo, TypeScript, GraphQL

Apply: https://instinctscience.applytojob.com/apply/4Yj4DavJ6D/Seni...

ThreatMark | Security, Machine Learning | REMOTE(World) / Brno, Czech Republic | Equity

ThreatMark protects >50M end users from finacial fraud and saves > $100M every year in losses. We are working with top banks in EU and US to protect their end users. We develop large-behavioral models that recognizes returning users by their mouse movements, keystroke timings and sensoric data (accelerometer, gyroscope).

We detect cyberthreats (e.g. malware, phishing, scraping) by exploiting browsers/sandboxes of devices. We manage ~PB scale of data and provide realtime scoring in milliseconds driving authentication/authorization flow (2nd factor).

Stack: [python, typescript, rust], [redis, postgresql], [aws, terraform] ...

We are looking for exceptional engineers to build with us and be part of the success:

- Backend Engineer [rust, python] - low-latency stream processing engine, rewrite python microservices to rust

- DevOps Engineer (IaaC in AWS)

If you are interested, please email us @ career@threatmark.com with subject "HN Who's Hiring"

If you don't find the right role here or at https://www.threatmark.com/careers/, write us anyway if you believe you can be good fit :)

Krystof Hilar, Co-Founder & CTO

Hi, i sent in an application from krissemmy17@gmail

Deya | Software Engineer (AI x Healthcare) | NYC (Hybrid) | Full-Time

Most AI in healthcare is being built in the wrong place.

Everyone is chasing scribes and diagnostics. Almost no one is building the longitudinal data layer, the system that captures what actually happens to patients over time.

That’s the real moat. We’re building it for eye care.

Deya is an AI platform that sits between doctor and patient, capturing symptoms, treatments, outcomes, and ocular images over time to enable continuous care.

We’re already piloting with eye doctors and collecting real patient data, including the largest dataset of eye images captured on smartphones.

What you’ll do:

- Build core product + infrastructure from 0→1

- Work across full stack, AI systems (LLMs + vision), and data pipelines

- Help define the architecture of a longitudinal healthcare data layer

Who you are:

- Full-stack engineer (backend / full stack; AI experience a plus)

- Wants ownership and to build from first principles

- Interested in healthcare, data, and real-world impact

Why this is interesting:

- Greenfield system with real-world data + distribution

- Direct access to clinical workflows and outcomes

- Small, high-ownership team

NYC-based, Hybrid.

Apply: https://deya.health/careers/software-engineer-ai-x-healthcar...

NotCo AI is a Food-Tech that modernizes CPG product development by unifying ingredient science, formulation, and consumer insights into one decision engine — trusted by Mars, PepsiCo, Ferrero, and more. We're currently hiring Tech Talent in Latin America (Chile & Argentina). If you're interested, please apply:

--> SWE in Chile: https://www.linkedin.com/jobs/view/4394671987/

--> SWE in Argentina: https://www.linkedin.com/jobs/view/4394676925/

--> DevOps in Argentina: https://www.linkedin.com/jobs/view/4394684340/

Authentik Security | Security Engineer | US | REMOTE (anywhere) | Full-time

Authentik Security (https://goauthentik.io) is the company behind authentik (https://github.com/goauthentik/authentik), an open source identity provider with 1M+ unique installations. Help us replace Okta/Auth0, Ping Identity, and Microsoft Entra with modern, secure identity for all!

We are a small remote team, looking to scale up with experienced software engineers, primarily with a backend security focus. Bonus points if you have significant experience with identity/SSO standards and/or Django/Python.

To apply, please use: https://forms.gle/NYXH4E19LUohbpmJA

> open source, help us replace... (Big Tech)

> Apply via this google form...

;-)

Electric Twin | London, UK | Hybrid (3/4 days per week in office) Electric Twin builds simulations of real customer audiences, so teams can test decisions before shipping them. We just raised $14 million and are growing rapidly.

We’re a small, team backed by top investors and operators, working with real clients on real problems. We’re hiring engineers (and other roles) who want high ownership, meaningful impact, and to help shape both the product and the company as we grow.

https://jobs.lever.co/electric-twin

Feel free to reach out directly if you'd like to know more: https://www.linkedin.com/in/smithharryh/

Hi, I sent a connect request on LinkedIn! Would love to know more.

CLEAR | Senior/Staff Software Engineers, Staff/Lead iOS Engineer, Infrastructure Engineers| NYC Onsite (4-5 days in-office w/ free catered lunch daily) | https://www.clearme.com/

CLEAR is building THE secure identity company of the future. Our mission is to make experiences safer and easier—physically and digitally. With more than 38 million Members and a growing network of partners across the world, CLEAR's secure identity platform is transforming the way people live, work, and travel. Whether it’s at the airport, stadium, or throughout your everyday life, CLEAR unlocks the magic of frictionless experiences.

If interested, apply here --> https://grnh.se/e4e5dc881us

StraighterLine (straighterline.com) | Staff Software Engineer (Full Stack) | Remote (US Only) | Full Time Our mission is to create opportunities for career advancement through access to affordable education. We are also the market leaders in early childhood (ECE) training and certifications. We are looking for two Staff Engineers to help lead development on next-generation AI-assisted learning platforms.

You will be building modern, API-driven, scalable services and applications with React/Next.js, TypeScript, Node.js, GraphQL, and AWS, using AI-native development practices. You will collaborate on architecture, shared services, internal tooling, and interface design, owning features from concept to production.

Competitive base salary, bonus and benefits (401k match).

Apply here: https://jobs.lever.co/straighterline/36d8f56b-14ac-4a35-af0c... and please mention HN under Additional Information. To get full attention, also send your resume, github, and linkedin profiles to hr at straighterline.com with subject line Hacker News.

Prosper AI | getprosper.ai | ONSITE Barcelona | Full-time

We build AI phone agents for US healthcare — insurance claims, benefit verification, scheduling. 300K+ calls/month, Series A closed, R&D fully in Barcelona.

Stack: Python, FastAPI, React/TypeScript. Small eng team, fast pace, real ownership.

Hiring for: - Senior Software Engineer: https://jobs.ashbyhq.com/prosper-ai/29fbeb7b-5673-498f-8333-... - Software Engineer: https://jobs.ashbyhq.com/prosper-ai/92f63920-a269-4039-8cf9-...

3–4 days onsite in Eixample. Stock options. ~2 week process.

Questions welcome, feel free to email our freelance recruiter Todora at hello@todora.co

Confluence | hourly consultant | remote

Research analyst (non-technical) looking for someone to help bridge the gap on some of the more technical aspects on neoclouds. Interested in views from a customer perspective as well as operators. Part time hourly work (US$100-300/hr). Happy to be flexile on timing around a primary job.

quinn at confluenceresearch dot com dot au

Chestnut | Product Engineers (Backend / Full-Stack) | SF + Seattle (Hybrid) | https://jobs.ashbyhq.com/Chestnut

Chestnut builds the systems insurance carriers actually run their distribution business on. We replace spreadsheets, legacy vendor systems, and manual processes with real-time data, deterministic workflows, and AI-assisted tooling.

This is end-to-end product engineering.

You won’t just write APIs. You’ll design schemas, build backend logic, ship UI, deploy to production, and handle the sharp edges that show up with real customers. The problems are messy and state-heavy: payouts that must reconcile with finance, onboarding flows with regulatory constraints, dynamic hierarchies, retries, chargebacks, partial failures.

We care a lot about correctness. These systems move real money and cannot drift.

Stack: Go, TypeScript/React, Postgres, Temporal, Kubernetes, AWS

We use AI heavily in our workflow — for drafting, refactoring, test generation, and exploring solutions. We expect engineers to use it aggressively. We also expect you to understand what it’s doing, spot when it’s wrong, and maintain strong fundamentals. Taste matters.

You’ll likely thrive here if you: - Have 3–6 years building real product systems - Are strong in at least one typed language and comfortable picking up others - Enjoy owning features end-to-end - Think in terms of invariants, edge cases, and failure modes - Like shipping quickly but cleanly - Want to build systems that operate in production, not demos

We’re a small, high-agency team. You’ll have meaningful ownership and direct impact on customers.

Hybrid in SF and Seattle.

Questions or want to sanity-check fit: nick [at] chestnutfi [dot] com

American Board of Family Medicine | Research Data Analyst | Washington, DC | ONSITE | Full time

We’re looking for a curious and productive analyst to help us work with our extensive electronic health record and survey datasets. We collaborate with universities and government agencies to help shape primary care, especially at the intersection of technology and healthcare. Opportunities to publish in academic journals are plentiful.

Please apply at https://www.indeed.com/viewjob?jk=53d4c2a19db4fe51&from=comp... The posting will likely only be active until the morning of 4/6.

If you apply, let me know at {my username here}@theabfm.org and mention that you saw the posting on HN.

Hey Hi, I have applied to the position.

Hellotext — Senior Full-Stack Ruby on Rails — Remote (LATAM/EU) - https://www.hellotext.com

We're building a conversational revenue system for eCommerce — think AI + automation that actually drives sales over WhatsApp/SMS, not just dashboards.

Small team, product-first, moving fast.

Stack: Ruby on Rails, JS, Postgres, real-time + messaging infra Work: automation engine (“playbooks”), AI-assisted flows, scaling data + messaging systems

Looking for strong full-stack engineers who:

- ship fast and care about product

- are comfortable owning things end-to-end

- have solid Rails experience

Apply: https://applicantai.com/hellotext/senior-full-stack-ruby-on-...

Location: Chicago, Illinois, US Remote: Yes

Willing to relocate: No

Technologies: Claude Code, Cursor, Vercel, Supabase, Expo, SQL

Résumé/CV: https://www.linkedin.com/in/kirill-polevoy/

Email: kpolevoy [at-symbol] gmail [dot] com

GitHub: https://github.com/kirillpolevoy

10+ years as product leader across B2C/B2B Fintech,insurtech, corp travel (early stage and growth companies). Looking for fractional/contract work. Good at going from "we have a problem" to actually fixing it — strategy and execution:

- Took over billing ($80M/mo volume), found scale-blocking gaps, shipped the redesign

- Built multiple product verticals ground up resulting in 50%+ customer retention

- Mobile app from idea to 45k DAU

Also build my own stuff with Claude Code and Cursor: Spektr (personal CRM — spektr.kirillpolevoy.com), Relai (Chrome extension, live on Web Store), Tiny Viewers (tinyviewers.vercel.app), StoryStack (storystackstudios.com).

Lead Chicago's Shiphaus chapter — day-long AI build events for business owners/leaders and engineers.

Microsoft AI | Platform Engineering | Full-time | Greater Seattle Area, WA or Bay Area (Mountain View), CA | ONSITE (3 days/week) We're building the platform primitives that power https://copilot.com (Microsoft's ChatGPT). If you've shipped systems at scale—whether backend services, distributed infrastructure, ML platforms, or consumer AI products—we want to talk to you.

The work: design and build secure, performant platform services for AI at scale; collaborate with infrastructure, product, design, and research teams; ship high-quality code that reaches hundreds of millions of users; move fast in a design-driven environment.

You: solid fundamentals in systems thinking and software engineering; fluent in Python, C#, C++, Java, JavaScript, or similar; shipped real products or systems people use; can communicate across technical and non-technical teams. Worked at companies/products of global scale and at least 1 startup-like environment (startup or internal incubator).

Compensation: Competitive with other frontier AI companies, commensurate with experience. Relocation available.

We're actively hiring and will respond to qualified applicants. Check https://microsoft.ai/careers for current openings, or email maiplatformjobs@microsoft.com. Apply directly if genuinely interested in building the future of AI.

New grads: If you've had 2+ MAG7+ internships (or adjacent large scale experience) AND a strong transcript from your university. Use [NEW GRAD] in the subject line.

BillionToOne (YC S17, NASDAQ: BLLN) | Menlo Park, CA | Onsite

We're a molecular diagnostics company. YC made a video of us recently: https://www.youtube.com/watch?v=kkv5rZhrLkc.

Our software team creates products that help detect prenatal genetic conditions non-invasively and uncover 50%+ more cancer treatment options. Your code reaches patients and the providers making decisions for them.

Stack: Python, React, TypeScript, AWS, Postgres. We believe in small teams with high ownership.

We're hiring:

- Senior Software Engineer (Prenatal, Oncology, Digital Experiences)

- Senior AI Engineer

- AI Engineering Intern

- Lead UX Designer / Designer

See our engineering specific recruiting page at https://engineering.billiontoone.com/#roles. You can reach out to me directly with a resume at kwu@billiontoone.com.

Enveritas (YC S18, non-profit) | Backend Software Engineer | Remote (Global) | https://enveritas.org/jobs/ Enveritas is a 501(c)(3) nonprofit working on sustainability issues facing smallholder coffee farmers. We collect field data in 25+ countries and build systems for analyzing risks in coffee supply chains (including EUDR-related deforestation checks).

* Backend Software Engineer (Python, PostgreSQL/PostGIS, Docker, AWS, Terraform) - $135-$155k — https://enveritas.org/jobs/backend-software-eng/#10d7adef8us (worldwide remote)

Bustem.com | Founding Engineer | NYC (On-site) | $140k–$180k + 0.25%–1.0%

Bustem helps e-commerce brands & more, find and shut down copycats, counterfeiters, and unauthorized sellers.

In <12 months: $3M+ ARR, 150+ brands, profitable, no outside capital.

We’re hiring a Founding Engineer to build the core systems behind detection + enforcement.

What you’ll do: Build real-time infringer detection (scraping + AI) Build automated enforcement systems (agents/workflows at scale) Own systems end-to-end (architecture → deployment → iteration)

Stack: Next.js, Postgres, modern backend infra, LLMs

You: Ship fast, high ownership Comfortable with ambiguity Build systems, not tickets

Why join: Profitable + real traction No legacy / no bureaucracy Direct impact on product + revenue Early enough to matter a lot

NYC in-person

Email: genci@bustem.co (send CV & GitHub / projects)

Full-Stack Engineer (Python / React) , Remote

We’re working on building production AI systems , not demos ,focused on real-world workflows, data pipelines, and integrating LLM-based systems into usable products.

Stack: - Python (FastAPI) - React / TypeScript - AWS / PostgreSQL

Work includes: - designing backend systems and APIs - building and scaling LLM workflows (agents, pipelines, RAG) - handling real-world issues like latency, reliability, and hallucination control - integrating AI into product experiences end-to-end

Looking for engineers who: - have built production systems (not just prototypes) - are strong on backend design and data flow - have experience with AI/LLM systems in real use cases

Remote, async-friendly, with some overlap with US timezones preferred.

If interested, apply here: https://lnkd.in/dbiCSZhW

Make sure to check your email (including spam/junk), as that’s required to move forward in the process.

Hi! Saw your HN post. I build exactly this: production FastAPI+LangGraph RAG pipelines with self-correcting loops, pgvector search, and Redis streaming—deployed on AWS. My LinkedOut project is a multi-agent system handling 100+ concurrent tasks. Would love to share my GitHub. Available immediately!

Odoo | Full Stack Developer | Hybrid (Belgium, 3 days/week) | Full-time | Visa + €10k Signing Bonus | https://www.odoo.com/r/mnk Odoo builds open-source business apps used by millions. We're hiring full stack developers to work on our Python/PostgreSQL backend, fast JS framework, mobile apps, website builder, and more.

Why join us:

- €10k signing bonus - Visa sponsorship + relocation support (contains 1 month free housing) - No clients, no deadlines — just clean, open-source code - Pick your team after 3 weeks of onboarding - Great team, countryside office (with chef!), flexible hours

You:

- Master several programming languages - Proficiency in object-oriented programming - Strong in SQL, data structures, and DB design - Passionate, autonomous, and eager to build real stuff

Apply → https://www.odoo.com/r/YEdn

Whats the deal with giving my passport number and uploading my passport document?

According to their privacy policy, it is to verify the identity of applicants

Evolve Robotics | XR Engineer, Full-Stack Engineer, Real-Time Engineer | San Francisco ONSITE | $140-200k + equity | https://EvolveRobotics.com

We let people embody machines from anywhere on the planet. Humanoids, drones, industrial arms -- if it moves, someone in a headset can be inside it, doing real work. You know how people remote into desktops? We do that, but for the physical world.

Team of 5 scaling to 10.

XR Engineer -- Build the interface between human input and robot movement. Hand/body tracking, gaze, controllers, spatial UI. Make teleoperation feel like teleportation, not a laggy video call. Experience with three.js, react-three/fiber and the pmndrs ecosystem is a big plus.

Full-Stack Engineer -- Product verticals end-to-end: data modeling, server routes, UI, real-time sync. Fleet management, operator scheduling, org tooling. TypeScript/React. Experience with sync engines or local-first architectures is a big plus.

Real-Time Engineer -- WebRTC internals, peer-to-peer data channels + video, connection lifecycle management in Go. Sub-frame latency with real consequences -- these are physical machines. If you've worked on real-time media infrastructure and want to apply it to something that actually moves, this is it.

We don't care about your title. We care that you can own a problem space end-to-end, move independently, and ship things that matter.

To apply: go to https://EvolveRobotics.com, find the contact form, and beat the game. If you can't get past Evo, this might not be the role.

PermitFlow (YC W22) | Staff, Fullstack & Frontend Software Engineers | New York, NY | ONSITE | Full-time | https://permitflow.com PermitFlow’s mission is to streamline and simplify construction permitting in the $1.6 trillion United States construction market. Our software reduces time to permit, supporting permitting end-to-end including permit research, application preparation, submission, and monitoring.

We recently raised a $54M Series B led by Accel with participation from Kleiner Perkins, Felicis, Altos Ventures, and YC.

Permitting is a challenging yet interesting problem; thousands of municipalities across the United States have their own processes and requirements - many which are continually updating. Software, AI, and LLMs provide an exciting opportunity for us to reason at scale and distill a nuanced and localized permitting process into a standard and streamlined experience for our customers.

We're looking for customer-obsessed, ambitious, and hard-working teammates who are excited about solving a real-world problem with technology at its helm.

NYC Onsite Roles | apply at: https://jobs.ashbyhq.com/permitflow?departmentId=d33195eb-89...

1. Staff Software Engineer - $200K-275K + equity

2. Fullstack Software Engineer - $125-245K + equity

3. Senior Frontend Engineer - $125K-245K + equity

https://permitflow.com/hiring

Category Labs | https://www.category.xyz/ | Remote and NYC | Full Time | $200K USD+

Category Labs (formerly known as Monad Labs) is a team of systems engineers and researchers on a mission to design and build at the frontier of decentralized technology. We strive to design and build step-function improvements over existing blockchain solutions. After raising $225M in series A funding, led by Paradigm, we are growing our team.

Senior Software Engineer, Compiler: https://jobs.ashbyhq.com/category-labs/e5c34899-cea1-4d25-be...

Smart Contract Engineer (Solidity): https://jobs.ashbyhq.com/category-labs/776ce314-aa12-471b-92...

Discord | Senior Software Engineer - Database Infrastructure | SF Bay Area (Hybrid)

Tech stack: Rust | ScyllaDB | k8s | Python | Postgres | Elasticsearch | Terraform

Role: Build and operate distributed database systems and data platform services that store all of the data for Discord's 200M+ users.

We're solving interesting problems around performance, reliability, and scalability at one of the largest communication platforms. Looking for strong infrastructure and distributed systems experience, familiarity with databases like Cassandra/ScyllaDB/Postgres, and comfort working in Rust or similar systems languages.

https://discord.com/jobs/8200328002

We are also hiring a non-senior level SWE for this team: https://discord.com/jobs/8487457002

Temper | Founding Engineer | SF (In-Person) | $150K–$250K + Equity | https://ontemper.com Every time two companies in the physical economy need to exchange data, someone builds a custom integration by hand. Analysts, engineers, QA. All manual. Every time. Google "EDI" if you haven't. It's wild.

We built AI agents that do the whole thing: gather requirements in plain English, write the integration code, test it, deploy it, fix it when it breaks.

We have paying enterprise customers and more demand than we can keep up with.

You'd be the first engineering hire. Agent orchestration, durable execution runtime, self-healing infra, most of the important architectural decisions haven't been made yet.

The founders built a logistics startup from pre-seed to 400+ people. We've been dealing with broken integrations for years.

TypeScript, Effect, Bun, PostgreSQL, K8s, AWS. Paid work day. Under 2 weeks to offer.

work@ontemper.com, mention HN

Denta | CTO | Full-time | Remote| https://trydenta.com

We've already built a dental analytics tool to aggregate and analyze data across the dental industry. We now are looking to build AI Agents on top of our infrastructure to automate away the administrative tasks associated with running a small healthcare company.

We are looking for a A+ player to take charge on this effort. The infrastructure and network is there to sell to existing clients and scale fast.

Open Positions:

- Full Stack Engineer

- AI Engineer

No experience is required. I'm open to anyone who can demonstrate they are capable.

Pay will be equity, incentive, or salary based depending on your goals.

Email:

hiring@trydenta.com

are you hiring only in US?

Wasmer (YC S19) | https://wasmer.io/ | Multiple Roles | Remote (EU) or Office (US) | Full-time

We are building the next generation of infrastructure for AI without Docker containers, but with a better container technology based on WebAssembly!

We are hiring for:

  * Rust Engineer (Remote, EU timezone)
  * Rust Distributed Engineer (Remote, EU timezone)
  * Developer Education Engineer (Office, San Francisco)

https://www.workatastartup.com/companies/wasmer

Carnegie Hall | C# Sitecore Developer | NYC, NY | Onsite | 105,000 USD /year | Full-Time

Come build the website for Carnegie Hall! It's a small team that works with the entire organization on all kinds of development projects. Mostly C# and a little python. Sitecore experience would be great but other CMS experience considered.

Apply here: https://jobs.dayforcehcm.com/en-US/carnegie/CANDIDATEPORTAL/...

Rover | Barcelona, Spain & Seattle, USA | Full-time Rover is the world’s largest online marketplace for pet care. We connect millions of pet parents with trusted sitters and walkers, and we’re building a global platform that combines technology, community, and love for animals. With offices in Seattle, Barcelona, and beyond, we’re scaling an engineering culture focused on high-quality code, data-driven product decisions, and customer empathy. Open Roles:

Senior Product Analyst (Seattle) Lead Business Intelligence Analyst (Barcelona) Lead Data Analyst - Marketing (Barcelona) Lead Data Analyst - Product Analytics (Barcelona) Manager, Product Analytics (Barcelona) Senior Product Analyst (Barcelona)

Apply: https://www.rover.com/careers/

Stealth AI Startup (Funded) | Mid-Level & Senior Software Engineers | REMOTE (US)

We're building at the intersection of AI and human behavior — think behavioral intelligence at scale. Our platform uses LLMs and proprietary data pipelines to change how the world evaluates trust, identity, and reputation. Not another chatbot. Launching to mass consumer market this year.

Team comes from Google, Amazon, and other top-tier tech cos. We've shipped systems serving hundreds of millions of users.

What you'd work on: scalable backend systems, search and identity verification infrastructure, custom LLM pipelines (fine-tuning, inference optimization), and frontend experiences that make complex AI outputs intuitive.

Looking for: 4+ YOE (mid), 7+ (senior). Strong distributed systems fundamentals. LLM/ML experience a plus. You've built something from scratch and liked it.

Comp: Competitive salary + meaningful early-stage equity. Fully remote, async-first.

Interested? Send a note about what excites you and your resume to email in profile. New account & email as we are staying in stealth until we launch.

Espresso AI | Staff ML & Staff Infra Engineers | Brooklyn or San Francisco | Full time

We're using LLMs to build neural optimizers, neural scheduling systems, and neural workload tuners. (If you're ex-Google, you can think of it like Borg powered by LLMs.)

Today we use ML to make data warehouses and spark jobs more efficient. We're hiring staff ML engineers to train models that can understand how much compute a job needs, how it scales to larger machines, whether a machine can run more jobs, and so on; and staff infra engineers to take those models and deploy them on real-world production systems.

If this sounds cool, please email me: ben [at] espresso [dot] ai

Oscilar.com | Sr/Staff Software Engineers & PM | REMOTE (US/Canada/Brazil/Poland/UK) | Full-time AI Risk Decisioning™ platform that helps organizations manage onboarding, fraud, credit, and compliance risks Open roles: - Sr./Staff Java Backend Engineer (Brazil/North America) - Sr./Staff Infrastructure Engineer (Europe) - Staff GenAI Engineer - Staff Web SDK Engineer - Full-Stack Engineer - AI Agent Platform - Product Manager

Apply at: https://jobs.ashbyhq.com/oscilar?utm_source=HackerNews

Arvo | Founding Engineer | NYC | Hybrid | Full-time

Arvo is building an AI meeting assistant for investment banking and private equity.

We’re hiring a Founding Engineer to work closely with the founders across desktop, backend, and AI workflows. It’s a high-ownership role with real influence on product, architecture, and execution.

Stack: Rust, React, Tauri, Python/FastAPI, SQLite, Postgres, LLMs, speech/transcription infrastructure

More here: https://arvohq.notion.site/Founding-Engineer-2e937d75c2a7805...

Colonist | Full-Stack Product Dev | Remote (Eastern Europe / SEA) | Full-time

Colonist (https://colonist.io/) is a multiplayer strategy game with millions of players. We're a small team and you'll own features end-to-end, from backend game logic to polished UI.

You'll work on evolving our game architecture, ensuring cleaner code boundaries and better scalability.

Stack: TypeScript, Node.js, React, CSS, PostgreSQL/SQL. We lean heavily on AI tooling for development.

More details and apply: https://jobs.ashbyhq.com/colonist/109d62c4-52f3-4980-9c49-d3...

Onos Health | Staff Eng (AI), Lead Eng (Backend), Lead Eng (Data) | San Francisco (Hybrid) | $200-250k + Equity | [https://onoshealth.com](https://onoshealth.com/)

30 cents of every behavioral health dollar in the U.S. is wasted — on ineffective care, administrative overhead, and outright fraud. Onos fixes this by ensuring every healthcare dollar goes toward high quality care.

Our AI platform helps health plans identify where care is going wrong, get members on the right clinical pathway, catch fraud and abuse, and automate reviews that clinical teams currently do by hand. We're well funded by top healthcare investors and live with some of the nation's largest health plans.

Stack: Python/Django, Next.js/TypeScript, PostgreSQL, AWS (Bedrock, ECS, Glue, S3). We ship with Claude Code and CodeRabbitAI.

Hiring:

- Staff Software Engineer (AI) — LLM pipelines for clinical note extraction, level-of-care classification, eval frameworks - Lead Engineer (Backend) — clinical workflow engine, AI/ML pipeline integration, multi-tenant architecture - Lead Engineer (Data/Integrations) — payer data pipelines, EDI X12/FHIR/HL7, claims feed infrastructure

All roles: https://onoshealth.com/career Email: [joinus@onoshealth.com](mailto:joinus@onoshealth.com) (mention HN)

NC Farm Bureau | Actuarial Data Scientist | Raleigh, NC (hybrid) | Full-time

We're seeking someone skilled in R and SAS programming, with heavy emphasis on predictive modeling (GLMs and GBMs mostly). SQL and data analysis skills are important, as is being a good problem solver who doesn't shy away from a challenge. Our machine learning/analytics program is still in it's infancy, so if you enjoy building from scratch, architecting workflows, and making a tangible impact - this role is for you. Hybrid work schedule after training period (3 days in office, 2 days remote).

https://www.ncfbins.com/career/3M9RpVXKjLKWDlLoxycNS8

Hey HN! I'm hiring aggressively to scale our team at Air Space Intelligence (https://www.airspace-intelligence.com)

Series B, onsite in Boston (all levels) and Seattle (Senior+).

We're building the software layer for airspace and critical infrastructure operations. Think real-time optimization across thousands of flights, grid assets, and logistics networks — the kind of problem where your state space is enormous, constraints shift constantly, and the humans in the loop are making life-safety decisions on tooling that hasn't meaningfully improved in decades.

We're hiring across Product, Infrastructure, and ML. If you're a performance minded front-end (web) engineer - I particularly would love to hear from you.

Here's one of our roles https://www.airspace-intelligence.com/careers/role?=6462d3d1... - there's a puzzle at the bottom that'll be trivial for this crowd, but it'll get you my email directly. If you go that route, drop "HackerNews" in the subject so I can prioritize you.

If building software for critical systems sounds interesting, I'd love to hear from you.

Furtim Modus | Hiring Java Developer (Full-Time) | NYC (HYBRID) | $125K-$200K + equity | https://www.furtimmodus.com/software-engineer

We are currently seeking a talented and driven Java Developer to join our team full-time. This is an exciting opportunity to contribute your skills and expertise to a venture backed funded fintech trading firm with emphasis in US equities capital markets tech based out of the New York City and in exchange we’ll provide you with base comp $125k-200k, full benefits, cash bonus, and equity.

Requirements:

- Electronic trading server-side software development experience

- Experience in Open Source technologies such as Aeron Transport, Aeron Cluster, Aeron Archive, Artio, Agrona, or CoinTossX is a big plus

- Experience with Adaptive Hydra trading platform is a big plus

Benefits:

- Flexible hybrid schedule to accommodate other commitments

- Collaborative and supportive team environment

- Relocation assistance to NYC Metro area

If you are passionate about Java development and interested in joining a fintech venture, we would love to hear from you. Please submit your resume if interested to agency@furtimmodus.com in this opportunity.

Adclear | Senior Fullstack Engineer | London, UK | HYBRID (4 days/week) | Full-Time

We're turning compliance from a bottleneck into a creative advantage for regulated brands. Clients include Monzo, Lloyds, PensionBee, and Plum. Raised £2.6m+ from Outward VC in our first 14 months.

The problem: we run multi-agent AI pipelines that evaluate regulated marketing content in real time. The model landscape moves fast and our architecture has to move with it. You'd own how these systems evolve in production, working directly with the CTO and AI engineers, while also shipping across the full stack.

Stack: TypeScript, React, React Router v7, Tailwind, shadcn/ui | Hono on Cloudflare Workers, Drizzle ORM, PostgreSQL (Neon) | Python, FastAPI, LangChain + LangGraph | GitHub Actions

We're 6 engineers. You'd have real input into architecture, tooling, and how the team operates. We use Cursor, Claude Code and Greptile day-to-day.

£75-95k + equity. Private healthcare, gym budget, hardware budget.

Apply (mention "Hacker News" in your notice period section): https://www.adclear.ai/jobs-seniorengineer

Mubit | https://mubit.ai | On-site, London (Canary Wharf) | Full-time

We're building the operational memory and state management layer for production AI agents — persistent execution history, shared state, and ACL-gated memory so agents get more reliable over time without constant human intervention.

Well funded and assembling the founding team. This is the beginning.

We're hiring for:

- Founding Engineer: https://jobs.ashbyhq.com/mubit/77a5ea32-5012-4073-b9a8-c5364...

Senior Python Backend Engineer | REMOTE (EMEA/APAC)

We’re looking for Python backend engineers to work on a trustless supercluster of performance-proofed GPU-enabled sandboxed docker container runners controlled by truly decentralized algorithms (not just PAXOS or RAFT).

Wow, that was a mouthful...

If you found it interesting, join Reef Technologies and tackle complex technical challenges like this on your own terms:

Contribute from wherever you like—we are fully remote Set your own time commitment, as long as it’s at least 30h per week See how we work in our handbook: github.com/reef-technologies/handbook Influence the way we operate through our Sociocracy 3.0 decision-making process

Salary on a B2B contract:

45-70 USD or 180-280 PLN per hour Flexible work schedule (as measured with a time tracker) We automatically adjust rates based on inflation twice a year

We're looking for someone with 5+ years of programming experience, including at least a year with Python (including opensource and significant personal projects).

So, what do you think? You don't even need a CV; just go to https://careers.reef.pl/?utm_source=hackernews and shoot a few quick commands to apply.

Contact: hiring@reef.pl Web: https://reef-technologies.com/

Post Up | Full time | Senior Backend Engineer | Onsite | Vancouver, BC (Hybrid) | Salary: $120-$130k CAD | https://www.postup.pro

We're building the Databricks for content production, starting with post. Our orchestration engine coordinates pipelines end to end and turns post-production workflows into a persistent graph of assets and transformations, which are deterministic, verifiable, and nearly instant at scale, powered by a high-performance compute layer. We're building this AI-native from the ground up; ML inference is embedded throughout the pipeline, not bolted on.

Stack: On-prem, HPC clusters, distributed storage systems, GPU pipelines, real-time video compute.

We're looking for our founding senior backend engineer who wants to work on genuinely challenging infrastructure problems across distributed systems and media processing with immense scale. Should be familiar with Golang, Postgres, Distributed systems, Distributed filesystems (e.g. HDFS, Ceph, etc). If that sounds interesting, reach out directly to me at wilson@postup.pro.

Me: https://www.linkedin.com/in/hayswilson/

How to apply: Email me directly at wilson@postup.pro or Submit here - https://www.notion.so/Founding-Senior-Backend-Engineer-31031...

  Results Generation | Cloud & DevOps Engineer | Austin, TX (Hybrid)

  We're a digital marketing platform company running a fleet of PHP/Lumen microservices on GCP, and supporting/rebuilding a legacy monolith. Small team, no bureaucracy, real infrastructure problems — multi-cluster Kubernetes, async messaging, database replication, content delivery at scale.
                                                                                                                                                                                 
  You'll own day-to-day infrastructure operations: multi-cluster Kubernetes, Terraform-driven GCP resources, Jenkins CI/CD pipelines, and on-call. Hands-on role — you're the person keeping production reliable and making it better.
                                                                                                                                                                                 
  Stack: GCP (GKE, Cloud SQL, GCS, Secret Manager, Workload Identity), Kubernetes, Terraform + Atlantis, Jenkins, Helm 3, Docker, MySQL (primary + replicas), RabbitMQ, Redis/Dragonfly, Elasticsearch, Grafana/Prometheus, Scalyr, Flux, Ansible.
                                                                                                                                                                                 
  Looking for: 3-5 years with cloud infrastructure in production. Solid Kubernetes and Terraform experience. Comfortable operating MySQL with replication. On-call experience — you've been paged and written postmortems. Networking fundamentals (VPNs, private endpoints, DNS, TLS).
                                                                                                                                                                                 
  Nice to have: GCP-specific experience, RabbitMQ, Elasticsearch, GitOps tooling, multi-cloud or cross-cloud migration experience.  

https://www.indeed.com/job/cloud-devops-engineer-9234cb66e9a...

or just email me: dhawkins over at resultsgeneration.com