I've noticed that many startups want people that are: a senior developer in new technology X, is good at Photoshop, and can design customer facing webpages. They also want to pay you well below market wages (because you should be happy to work for a fun company that has a fooseball table) and give you company equity in place of sub-market wages (which is a joke, because most startups are out of business within 5 years).