Amentum is seeking a Program Security Specialist Level 3 to support the National Geospatial-Intelligence Agency (NGA) in Springfield, VA. The role involves providing subject matter expertise and hands-on support for Special Programs (SAPs, CAPs, & ACCMs). Responsibilities include supporting program development from cradle to grave, preparing and reviewing required documentation, performing day-to-day activities for Special Program requirements, and maintaining accountability of access rosters and program access request tracking documents. The specialist will also prepare risk assessments, attend community meetings, and communicate security guidance to program managers.