My hobbies in descending order of expertise (and the stack exchange boards/topics I'll likely contribute to):
-Cooking & general food stuff, especially various ethnic cuisines
-Video games (playing)
-History of video games, their development, and the video game industry in general
-Travel
-Hobby robotics and other electronic-tinkering
-Beer (drinking and making)
-Whiskey (drinking)
My profession is software development though I'm currently transitioning to more of a DevOps role. My main area of programming expertise is writing low-to-mid language stuff for embedded systems, micro-controllers, PLD's and other such applications where you have to be creatively efficient to work around hardware limitations.