I am an algorithm developer using MATLAB in my day job.
After a long day of writing code, I like to come home and relax by...writing more code -- I've recently picked up writing Android apps as a hobby. After 30 years of constantly expanding computing power, it's fascinating to return to a restrictive environment where you not only need to be concerned about limited memory and processing power, but conserving battery charge as well.
My rusty Java skills make this hobby even more interesting, as does the switch back and forth between high-level MATLAB and lower-level Java.
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Stack Overflow
Q&A for professional and enthusiast programmers
Photography
Q&A for professional, enthusiast and amateur photographers
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Audio-Video Production
Q&A for engineers, producers, editors, and enthusiasts spanning the fields of audio, video, and media creation