- Seoul National University (East Asian History)
- Uni. of Washington (Seattle) Graduate school of International Relations
- Graduate School of Dongguk University (Ph.D.)
- Yonhap News Agency (Shanghai Correspondent, Washington, D.C. Correspondent)
- Yonhap News Politics Team Team Head
- Yonhap News Agency Diplomatic Issue Senior Editor
- Ministry of Foreign Affairs Member of the Evaluation Committee
- Kwanhun Club President
- Member of Shinyoung Fund
- Professor of Sogang University