Your average, run-of-the-mill geek. I enjoy working with Python, Mercurial, and PostgreSQL.
Code written by me during or after Summer 2013 (but not during the 2013-2014 academic year) could belong to my then-employer unless noted otherwise. Many other answerers on Stack Exchange are in a similar position with respect to their own employers. For this reason, I strongly urge you not to copy large amounts of code out of Stack Exchange answers, regardless of who wrote them.
Where possible, I try to avoid giving nontrivial code answers, instead providing human-readable instructions. These are less likely to fall under copyright transfer. If in doubt, consult your (company's) lawyer.
If you require a specific exemption, please contact me through the comments on the relevant answer. I may be able to get copyright waivers on a case-by-case basis. You will probably not get a prompt response and may not get any response. If I am unable to secure a waiver and I am not satisfied that the code is trivial, I may remove the code or delete the answer entirely to ensure copyright compliance.
Note that there is a copyright waiver in effect for my open source project NBTParse with respect to Google's interest in my code.