Justin guided the fund's investment process in SpaceX, the first private company to develop a liquid fueled rocket to achieve Earth orbit; Social Gaming Network (SGN), a company dedicated to building social games across mobile and web platforms; and Inigral, a start-up focused on education and course management software. He also serves on the board of Clickable, Adorn, and Navia. Prior to Founders Fund, Justin was CEO of Stanford Student Enterprises (SSE), a conglomerate of businesses at Stanford University. He led SSE to the largest expansion of revenue and profitability in the organization's history. He was also Director of Sales at Cellfire, a mobile promotional marketing service, and worked as an engineer at Raytheon/Texas Instruments. Justin previously served under Alan Larson, the Undersecretary for Economic, Business and Agricultural Affairs at the State Department. Justin holds an MS in Computer Science and a BS with Honors in Management Science and Engineering from Stanford University.