David's professional career began as a research scientist at the Center for Blood Research in Boston focusing on the MHC of genetically engineered mice. After receiving his master's degree from Sloan in 1987, he spent a decade at MIT raising capital from industry and facilitating technology transfer. David still holds a partial appointment at the MIT Sloan Center for Digital Business. In 1996 he joined Xerox as Manager of International Sales and Business Development for the Adaptive Products Division before it was sold. In 1998 David joined third party marketing firm Winchester International Group as Managing Director. In 2000 Winchester helped found the Hub Angels, and early stage investment group in Boston. David sits on the Boards of Intelligent Bio-Systems, Incentive Targeting and is Chair-elect of the Angel Capital Association. David was educated at Bowdoin College and the MIT Sloan School of Management.