Dr.You has an extensive career in high technology, international cooperation, and education. He has been closely associated with the high technology industry, especially in Silicon Valley. Dr. You has worked with David Packard and translated his influential book into Korean. He has studied Intel's management philosophy and translated President Andrew Grove's book, "Only the Paranoid Survive"​. Dr. You founded a high tech start-up (Venture Business), Korean American Software Corporation (KASCO Technology). He has made significant technical contributions that includes working on the research team that developed inkjet printers at HP Laboratory. He has, among others served as chairman of International Venture Network and as an advisor to the International Law and Economy Institute in San Francisco. He has served as chair, advisor and consultant to a number of Korean institutions. In particular, he has served on the board of the Korea Research Council for Science and Technology (KOCI) for many years. The Korea Research Council sets the strategic direction of Korea's seven largest National Research Centers. Dr. You has recently served as the President and Chief Executive Officer of the Korea Foundation for International Cooperation of Science and Technology (KICOS), an organization founded by the Ministry of Science and Technology. In this capacity he established a number of research collaborations between Korean and foreign institutions. The Battelle Memorial Institute's establishment of a Northeast Asian R&D center in Korea is an outstanding instance. Dr. You is an outstanding educationist. He has his academic credentials earned from world renowned universities. They include Korea University and University of California, Berkeley. His interests span from graduate programs to those at the school level, skill development and international student exchange. Among others he founded and managed a non-profit "Korean Language and Cultural School" in California.