Every freelancer in my area is, by this definition, a "Desingineer." I'm in the midwest, so there's almost no other way to get work other than go full stack. Obviously, some are better at the back end and some are better designers, but they have to do it all.

Honestly, this reinforces the issue that startups do a poor job of recruiting outside of their 20 mile radius. For example, its early in the office, and I still see 5 people who have pushed high level applications, good front ends, and the occasional mobile app.