Attoney, Pusan Pacific Law Office (2002-2007)
Sole-practitioner (2007- 2009. 2.)
Senior Partner, Thankslaw office (2009.2.-2012. 2.)
Senior Partner, Thankslaw office LLC (2012. 3. - Current)
"Korea Maritime University Adjunct professor(2005-2007)"
Outside Director, Korea Container Terminal Authority (2006- 2011)
Director, Busan Bas Association (2007. 2.- 2009. 2., 2013. 2. -2015. 1. )
Member of Busan Labor relations commision (2011. 1. - Current)
Outside Director, MH Ethanol Co,. Ltd. (2011 - Current)
Director, Korea Maritime Law Association (2008~Current)
Member of National Labor Relation Commission(2013. 9.- Current)
Member of Busan Metroplitan Police Agency Investigation objection Committee (2014. 2-Current)
Member of Korean Bar Association Bankrupty policy improvement Committee (2014. 10.-Current )
Trustee in bankruptcy of Hankook Condominium corpoation, Asia Heavy industry, Namdo Mutural Bank and Sung-kyung medical foundation
Trustee in bankruptcy of Yang Bo Co., Ltd. and Sambo Iron and Steel Co., Ltd.
Trustee in bankruptcy of Hwanyoung Co., Ltd.
Legality of the demand for distribution by a provisional seizure creditor of foreign vessel(Korea Maritime Law Association, 2012)
Consideration concerning to Delivery time of Cargo (Korea Maritime Law Association, 2010)
A study of legal problems in development and operation of port facilities(Busan Bar Association, 2008)