In this role, he was responsible for coordinating the largest increase in State Department recruiting, hiring, and training in its history.

A senior Foreign Service officer, class of Minister-Counselor, he also served in 1998 to 2000 as Director of the Department's Entry-level Counseling and Assignments Division in the Bureau of Human Resources.

He also served mainly in the Bureau of East Asian and Pacific Affairs and as a Country Risk Analyst at the Export-Import Bank of the United States.

Additionally, he attended the Senior Seminar and the Economic-Commercial Studies Program at the Department's Foreign Service Institute.

Marquardt is the recipient of several Meritorious and Superior Honor Awards as well as the Presidential Performance Pay on four occasions.