2015 – Present Assistant Professor, School of Business, New Jersey City University, Jersey City, NJ
2013 ‒ Present Adjunct Faculty, Transportation and Logistics Program, Graduate School of Interdisciplinary, North Dakota State University, Fargo, ND
2013 ‒ 2015 Adjunct Faculty, Department of Industrial and Manufacturing Engineering, College of Engineering & Architecture, North Dakota State University, Fargo, ND
2012 ‒ 2015 Associate Research Fellow, Upper Great Plains Transportation Institute. North Dakota State University, Fargo, ND
2011 ‒ 2012 Research Analyst, Upper Great Plains Transportation Institute. North Dakota State University, Fargo, ND
2002 ‒ 2004 Logistics Consultant, Korex Consulting Inc., Seoul, Korea
2001 ‒ 2002 ERP Finance and Decision Support Consultant, Baan Korea Co. Ltd., Seoul, Korea
2001 Technical Service Manager & Project Manager, E-IDEA Data Bank Co., Seoul, Korea