Previously, Dong-Su was Vice President and GM of Samsung Ventures America where he managed offices in Menlo Park, Boston, London, and Tel Aviv. He has led the investment of over thirty companies in diverse sectors including semiconductors (Soft Machines, Verisilicon, Wave Computing), equipment (DCG Systems, IMS, Reno Subsystems), materials (Nanosys, NexPlanar, Voltaix), and storage systems (Pure Storage).

Prior to joining Samsung Ventures, he was a Director at Asia Evolution, an investment bank in Korea covering mid-market financing, private placement, and M&As.

Before that, he was a Director at the Technology Strategy Office of Samsung Electronics. As the CTO’s staff, he was responsible for strategic venture investments and technology alliances. He also worked in technology planning for Samsung’s Telecom R&D center, responsible for discovering new research topics. Dong-Su started his professional career as a Technical Leader at Samsung Fiber Optics Business Unit in development of fiber optic components.

His past Board Director appointments include Datera, Digital Specialty Chemicals, Femtometrix, Inpria, Reno Subsystems, SBA Materials, SVXR, D2S, DCG Systems (acquired by FEI), NexPlanar (acquired by Cabot), Voltaix (acquired by Air Liquide), Panasas, and Pixtronix (acquired by Qualcomm). Dong-Su also served on the Investment Advisory Committee for Sierra Ventures.

Dong-Su has earned an M.A. and a Ph.D. in Electrical Engineering from Princeton University, and a B.S. with Honors in Applied Physics from California Institute of Technology