He worked at Bell Laboratories, Litton Industries, General Electric Company, Tektronix Inc. From 1993 to 2001, he was the Engineering Vice-President of Micro Systems Engineering, Inc., a Biotronik company, where he was responsible for the development of pacemakers and implantable defibrillators. Since 1990, he has been an Adjunct Professor of Electrical and Computer Engineering in the OGI School of Science & Engineering, Oregon Health & Science University, Beaverton. In 2002, he joined the Department of Biomedical Engineering of the OGI School of Science and Engineering as an Assistant Professor. He has published over 50 articles and conference papers, and holds 23 U.S. patents. His current research is directed toward cardiac rhythm management and biomedical signal processing.,Dr. Thong is a member of Sigma Xi, Tau Beta Pi, and Eta Kappa Nu