I consider myself a generalist as well, and while there are some problems with it, there are upsides too. I wouldn't consider that a barrier.

You look like a very talented and productive coder, and I don't think your skillsets are out of date, as some people seem to imply. If you know both Java and Unix well, then you're employable in spades.

Are you actually looking for work now? What happens when you apply for jobs? Are you stumped by algorithmic questions (i.e. textbook style questions)?