Ask HN: Are startups biased towards devs from finance?

I'm a software developer working on software for banks in London. I graduated in december last year. I've got 2 internships (one of top 5 inv. banks and engineering company). I've got a few opensource projects (GitHub, Codeplex) and substantial web presence (Stackoverflow, blog, coderwall). Almost everyday I hack something for fun(phone app, webapp on AWs). I do my CodeKata, recently in Scala and yet I don't know how to land a job in a startup.

I always wanted work in a startup. The tipping point was when I was working on a Imagine Cup project with friends. I really enjoyed that experience. Even after all-night coding I felt happy and productive. I struggled if this is right for me. Maybe it was the influence of environment that having a job is the right way? I don't know, but finally I know what I want to do in my life.

I tried to pitch a few startup, but no interview invite. Is my lack of startup experience a problem (chicken or egg dilemma)? Maybe working in finance is not hot?