Semyon Dukach is Managing Director of Techstars in Boston. He is also known as a top angel investor, the Chairman of SMTP (company) (NASDAQ: SMTP), and a former professional blackjack player with the MIT Blackjack Team. He played with Strategic Investments and later was one of the founding members and team leaders on Amphibian Investments whose exploits were chronicled in Ben Mezrich's Busting Vegas and referred to in Mezrich's Bringing Down the House.