Associate Professor of Logistics and Supply Chain Management, 2016 – present, Department of Operational Sciences, Air Force Institute of Technology
Associate Professor of Supply Chain Management, September 2014 – December 2016, College of Business, Central Washington University, Des Moines, Washington
Associate Professor of Production/Operations Management (tenured), August 2009 – May 2014, Hasan School of Business, Colorado State University-Pueblo, Pueblo, Colorado
Associate Professor of Supply Chain Management, August 2008 – May 2009, School of Business, Clayton State University, Morrow, Georgia
Assistant Professor of Operations/Supply Chain Management, September 2004 – July 2008, College of Business, Central Washington University, Ellensburg/Des Moines, Washington
Visiting Scholar and Adjunct Instructor, January 2004 – May 2014, John Cook School of Business, Saint Louis University, St. Louis, Missouri
UPS Foundation Postdoctoral Fellow, February 2003 – January 2004, The UPS Center for World Wide Supply Chain Management, University of Louisville, Louisville, Kentucky
Supply/Logistics Officer (2nd Lieutenant to Lt. Colonel), March 1982 – April 2003
Republic of Korea Air Force (ROKAF), Daejeon, Korea
- 10th Supply Squadron (1982-1986): retail supply support
- ROKAF Headquarters (1986-1990): supply policies and procedures
- Combat Development Group (1995-1996): combat logistics support
- ROKAF Headquarters (1996-1997): logistics information system development
- Air Force Logistics Command (1997-2000): wholesale logistics support
- Korea Institute for Defense Analyses (2000-2003): logistics research