<Research and teaching experience>
- 2010-Present Professor / Associate Professor, Department of Political Science and Diplomacy, Seoul National University
- 2016-Present Vice Director, Institute for Peace and Unification, Seoul National University
2005-2010 Assistant Professor/Associate Professor, Department of International Relations, University of Seoul 2003-2004 Senior researcher, Institute of International Studies, College of Social Sciences, Seoul National University

<Education>
- PhD, Department of Political Science, Pennsylvania State University (2003)
Major: International Relations (International Organizations) / Minor: Comparative Politics
Paper title: Power Resources, Preferences, and Influence at the UN General Assembly
- Master's degree, Department of Foreign Affairs, Seoul National University (1996)
Major: International Relations (International Monetary System)
- Bachelor's degree, Department of Foreign Affairs, Seoul National University (1991)