1981. Judicial Research and Training Institute
1983. Judge, Southern Branch, Seoul District Court
1985. Judge, Seoul Criminal District Court
1987. Judge, Wonju Branch, Chuncheon District Court
1990. Judge, Eastern Branch, Seoul District Court
1992. Judge, Seoul Civil District Court
1994. Judge, Seoul High Court
1996. Judge, Seoul District Court
1997. Judicial Researcher, Supreme Court
1998. Partner, Yulchon
2001. Presiding Judge, Daegu District Court
2004. Presiding Judge, Suwon District Court
2006. Chief Presiding Judge, Uijeongbu District Court
2008. Chief Presiding Judge, Daejeon High Court
2009. Presiding Judge, Seoul High Court
2013. Chief Presiding Judge, , Seoul High Court
2014. Chief Judge, Uijeongbu District Court
2015. Chief Judge, Seoul Family Court
2017. Presiding Judge, Seoul High Court
2019. Managing Partner, CLASS