Worked as a software designer for a video game creator and distributor. Designed concept for 2 games (1 role-playing game, 1 real-time strategy game), designed levels for 2 real-time strategy games, and oversaw in-house testing for all games

Launched Korea subsidiary of Hong Kong technology incubator and investment company. It was originally established as a joint venture with Daum Communications

Infinity (then ticker symbol: INFN) created interest-rate derivatives trading, risk management, and back-office systems.

McQs is a management consulting firm specializing in operational improvement. Cornerstone Partners was formed in 2009 when all senior members (Engagement Managers and Partners) left McQs together.

Business Unit & Corporate Strategy, Purchasing and Supplier Management, Value-based Management, Mergers & Acquisition. Worked in Seoul and New Delhi/Mumbai offices.

Asia Pacific International School (APIS) is a private, nonprofit school, fully accredited by the Western Association of Schools and Colleges (WASC), operating in Seoul, Korea and in Hawaii, USA. APIS strives to educate its students, in a loving and caring Christian environment, to become globally enlightened citizens, who are able to bridge the gap between the East and the West and are ready to welcome the exciting challenges of the New Pacific Century.

Cornerstone Partners is a consulting firm specializing in operational improvement, with emphasis on manufacturing sector.