Doctor of Philosophy, Syracuse University, New York, 2006.
Electrical technical officer Headquarters Rok Army, Kyeryoung, Republic of Korea, 2000—2002. Test and evaluation officer DAPA, Seoul, Republic of Korea, 2006—2007, chairman, 2007. Battalion Commander, lt.col.
53 Infantry Division, Pusan, 2007—2008. Policy management officer Defense Acquistion Program Administration, Seoul, since 2008. Officer special teaching course test and evaluation Defense War College, Seoul, since 2006.
Master: Test & Evaluation Association. Member: Institute of Electrical and Electronics Engineers (reviewer since 2004).
Married Soyeon Sim; children: Kyoochan, Richard, Kyoosung.