I started tinkering with Robocode back in 2006 when it was at version 1.1.3. It's been quite awhile since I lasted used it, but I've recently been getting into it again. This time, I actually released a robot into the 1-on-1 competition. My latest robot is named XanderCat. It should perform okay, but I will need to spend more time on it if I want it to compete with some of the wave surfing Jedi-bots.
Professionally, I have been doing enterprise Java development for over a decade. I have an SCJP and a GSSP-J certification, and am currently working on an SCEA. I stay pretty busy with work and family, but from time to time, I am able to put a little time into recreational activities like Robocode.