- 2010. Jung Pyung Law Firm
- 2011. Koron co.
- 2014. Compliance and Corporate Affairs Team Leader, LG display co.
- 2019. Min & C
- 2019. Legal Council, Fair Trade Commission
- 2019. Legal Council, Small and medium business technology secure commission in Kyung gi Province.
- 2019. Support Group for victims at the Sport human right, National Human Right Commission of Korea