Duties Help As a Mission Support Specialist, GS-12 level you will perform the following duties: Serves as a Subject Matter Expert on assigned administrative matters. Conducts or participates in the evaluation of administrative programs, concerning the efficiency and effectiveness of program operations. Maintains a high level of analytical ability to identify issues, recommend actions , and re-engineer processes. Applies a wide range of administrative programs, concepts, laws, policies, practices, and analytical diagnostic methods and techniques to address substantive matters that contain several interrelated issues .