- Sep. 2020 - Present, Research Fellow, Korea Institute for Industrial Economics and Trade (KIET).
- Aug. 2013 - Aug. 2020, Associate Research Fellow, Korea Institute for Industrial Economics and Trade (KIET).
- Aug. 2011 - Jul. 2013, Research Assistant, Institutional Research, Washington State University
- Jun. 1, 2012, Guest Lecturer, Sports Economics, School of Economic Science, Washington State University
- Mar. 26, 2012, Guest Lecturer, Sports Marketing I & II, College of Education , Washington State University
- May. 2011, Guest Lecturer, School of International Studies, Liaoning University, Shenyang, Liaoning Province, China
- Feb. 2006 - Aug. 2009, Researcher, Korea Rural Economic Institute (KREI), Seoul, South Korea
- Mar. 2005 - Aug. 2005, Research Assistant, Office the Associate Dean, College of Agriculture & Life Science, Seoul National University, South Korea
- Mar. 2004 - Feb. 2006, Research Assistant, Department of Agricultural Economics and Rural Development, Collage of Agriculture & Life Science, Seoul National University, South Korea