Seoul National University, College of Engineering (1979)
Partner, Kim Chang Lee (2009 ~ Present)
Partner, Aju Law (1994 ~ 2009)
Judicial Research and Training Institute of the Supreme Court of Korea (22nd Class) (1993)
Legal Advisor, Credit Guarantee Fund of Farmers and Fishers
Legal Advisor, Korea Expressway Corporation
Legal Advisor, Seoul Guarantee Insurance Co., Ltd.
Legal Advisor, Guri Agricultural and Marine Products Wholesale Market