<Former Position>
- Director of Flash Development Department, Memory Business Division of Samsung Electronics
- Member of Supreme Council, Democratic Party of Korea
- President, National Human Resources Development Institute
- Vice-Chair of Special Committee on the Japanese Economic Aggression, Democratic Party of Korea

<Current Position>
- Vice-Chair of K-New Deal Committee for Future Transformation, Democratic Party of Korea
- Vice-Chair of Special Committee on Semiconductor Technology, Democratic Party of Korea
- Member of the 21st National Assembly of the R.O.K (Gwangju Seo-gu Eul/Democratic Party of Korea)
- Member of Strategy and Finance Committee for the 1st half of the 21st National Assembly of the R.O.K
- Member of the Special Committee on Budget and Accounts for the 1st half of the 21st National Assembly of
the R.O.K