| July 2024 ~ present |
Secretary General of the Peaceful Unification Advisory Council |
| March 2023 ~ May 2023 |
Executive Member of the People Power Party |
| June 2022 ~ February 2023 |
Chairman of the International Committee of the People Power Party |
| June 2021 ~ April 2022 |
Vice Floor Leader of the People Power Party |
| October 2022 ~ March 2023, November 2023 ~ May 2024 |
Secretary of the Foreign Affairs and Unification Committee |
| 2021 ~ 2022 |
Member of the House Steering Committee |
| May 2020 ~ May 2024 |
Member of the 21st National Assembly |
| 2019 |
Founder and Executive Chairman of the Coalition for Change in North Korea |
| 2017 ~ 2018 |
Advisory Research Fellow at the Institute for National Security Strategy |
| July 2016 |
Asylum in the Republic of Korea |
| 2013 ~ 2016 |
Minister at the North Korean Embassy in the United Kingdom |
| 2008 ~ 2013 |
Deputy Director of the European Affairs Department at North Korea's Ministry of Foreign Affairs |
| 2004 ~ 2008 |
Counselor at the North Korean Embassy in the United Kingdom |
| 1998 ~ 2000 |
Secretary at the North Korean Embassy in Sweden |
| 1996 ~ 1998 |
Secretary at the North Korean Embassy in Denmark |
