Cromer is a career member of the Senior Foreign Service, with the rank of career minister. She served as the U.S. Agency for International Development (USAID) mission director at the U.S. Embassy in Accra, Ghana; she has had multiple positions here. Previously she was the USAID mission director at the U.S. Embassy in Dar es Salaam, Tanzania and she has also been the USAID mission director at the U.S. Embassy in Abuja, Nigeria. Cromer served as senior deputy assistant administrator and acting assistant administrator in the Africa Bureau of USAID, and also as the deputy assistant administrator of the USAID Management Bureau. In Jakarta, Indonesia, Cromer was a supervisory contracting officer, and then the USAID deputy mission director, at the U.S. Embassy. Cromer has also served as a contracting officer in Senegal, Ivory Coast, and Pakistan.[2]
Cromer has also held several positions in Africa.[3]