David R. Heffelfinger is the Chief Technology Officer of Ensode Technology, LLC, a software consulting firm based in the greater Washington DC area. He has been architecting, designing, and developing software professionally since 1995. He has been using Java as his primary programming language since 1996. He has worked on many large scale projects for several clients including IBM, Accenture, Lockheed Martin, Fannie Mae, Freddie Mac, the US Department of Homeland Security, and the US Department of Defense. He has a Masters degree in Software Engineering from Southern Methodist University. David is an editor in chief of
Ensode.net (http://www.ensode.net), a web site about Java, Linux, and other technology topics.