Contributed patches to kodi (formerly xbmc) media player to track which shows among your favorites you're actively watching, and suggest unwatched episodes of those in the "what to watch" area.
Contributed patches to Vim to support embedded Python extensions returning complex structures (lists/dicts, recursively nested) and to fix Python support when it broke with version changes.
Contributed patches to Vim to allow certain options more access to the sandbox if they are set securely (e.g. modelines and other document-centric options have lower permissions than options explicitly set by the user).
Contributed fixes to Gaim (now Pidgin), an instant messaging/chat client, to fix /tmp security race conditions
Minor debugging and community contributions to linux-kernel and Mozilla (now Firefox).
Currently develop a large association management system for non-profit associations, a web application including membership database, e-commerce, mailing list management, geocoding and advocacy, fundraising, RESTful web services. Development is primarily Python on Linux/Apache with a MySQL backend. Matrix Group International, Arlington, VA 2004-present.
Developed full-text search and indexing software and text mining visualizations for patent searches. Implementation in C and Python on Linux/Apache with Postgresql backend. TextOre, Arlington, VA 2002-2003.
Wrote from scratch a TCP server to handle dynamic content (including geotargeted advertisements); implemented in C as a preforking TCP server with completely tokenized rules matching, which handled 900 ads/second in 1999 on legacy hardware. Also worked on Java-based user interface for content management and compiling rules to fast token-based matching system. Motley Fool, Alexandria, VA 1999-2001.
Trained support and sales staff on encryption products, including F-Secure SSH and IRE/SafeNet hardware and software VPN technology. Grupo Microsistemas S.A., Quito, Ecuador 1998.
Worked with and on LaTeX2HTML to put course papers online. Perl on Linux and Solaris systems. Carnegie Mellon University, Pittsburgh, PA. 1997.