Before joining NRGI, Sun-Min worked for two years with Global Integrity in Washington, D.C., where she managed the Africa Integrity Indicators project, a yearly indicator-based assessment of national transparency and accountability mechanisms that covers all 54 countries in Africa. Previously, she spent time in Cameroon, Togo and Burkina Faso working on a range of different governance initiatives. In Cameroon, she worked with the United Nations Development Programme (UNDP) on issues of inclusion and development effectiveness. In Togo and Burkina Faso, she worked with the Hanns Seidel Foundation and supported the implementation of the African Peer Review Mechanism (APRM).

She holds a master's degree in international security from Sciences Po Paris.