- Associate Professor, Department of Mathematics, Virginia Tech – Blacksburg, VA
- Assistant Professor; London School of Hygiene & Tropical Medicine – London, England
- Assistant Professor, The University of Texas Health Science Center at Houston – Houston, Texas
- National Research Council Postdoc at the Air Force Research Laboratory, Wright-Patterson AFB – Ohio
- Executive Vice President and Chief Merchandising Officer, 7-Eleven, Inc. – Dallas, TX
- Attorney-Advisor, U.S. Securities and Exchange Commission, Washington, DC