Although I've never had any formal computer science or programming training, I've dabbled in it as a hobby since around 2000 and worked either part-time or full-time in the field since 2003. I started with C/C++, dabbled a bit with Windows and DirectX back when I thought it would be cool to make games, but all my professional experience has been in Java. Recently I have been focusing on strengthening my Computer Science and algorithms skills, and have been learning functional programming in Scheme and, most recently, my new favorite language, Clojure. But I'm not very good yet.