1993. Judicial Research and Training Institute
1996. Judge Advocate Officer, Korean Army
1996. Judge, Southern Branch, Seoul District Court
1998. Judge, Seoul Central District Court
2000. Judge, Chuncheon District Court
2002. Judge, Daegu District Court
2004. Judge, Seoul High Court
2005. Judicial Researcher, Supreme Court
2008. Presiding Judge, Jeonju District Court
2009. Judicial Researcher, Supreme Court
2013. Presiding Judge, Seoul Central District Court
2016. Chief Judge, Cheonan Branch, Daejeon District Court
2017. Presiding Judge, Busan High Court
2018. Presiding Judge, Seoul High Court
2019. Presiding Judge, Seoul High Court
2020. Managing Partner, CLASS(Seocho)