Marshall Sitten began working at TSD in August 2001, where his responsibilities include web development, computer system administration, and technology research projects.

Prior to arriving at TSD, Marshall worked as a programmer, web site designer, and provided hardware and software support for a number of companies, including Fusion UV Systems, CommControl, LLC, and Gensler. Marshall was also a General Partner at Sidehatch, a web and media design consultancy.

Marshall graduated from the University of Maryland with a BA in Psychology in 1997.