Software developer proficient in C, C++, Java, Python.
I do the majority of my development in Linux, and use ArchLinux as my OS of choice. I have professionally worked on RHEL5/6, FreeBSD, Ubuntu, and Fedora.
Stack Overflow
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Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Server Fault
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Cross Validated
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TeX - LaTeX
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Programmers
Q&A for professional programmers interested in conceptual questions about software development
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Mathematics
Q&A for people studying math at any level and professionals in related fields
Personal Productivity
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Cryptography
Q&A for software developers, mathematicians and others interested in cryptography