1995. Judicial Research and Training Institute
1997. Judge Advocate Officer
2000. Judge, Northern Branch, Seoul District Court
2002. Judge, Seoul District Court
2004. Judge, Yeongwol Branch, Chuncheon District Court and Appointed judge, the court in Pyeongchang-gun, Taebaek-shi, Jeong-seon-gun
2006. Judge, Yeongwol Branch, Chuncheon District Court
2006. Research and Training at Huadong University
2007. Judge, Sokcho Branch, Chuncheon District Court
2008. Judge, Seoul High Court
2010. Judge, Seoul Central District Court
2012. Presiding Judge, Tongyeong Branch, Changwon District Court
2013. Presiding Judge, Goyang Branch, Uijeongbu District Court
2016. Managing Partner, P&C
2017. Attorney, Logos
2019. Partner, CLASS