Amentum is currently searching for a Senior Security Specialist to join our team on Aberdeen Proving Ground, MD to support our customer, PM Intelligence Systems & Analytics (PM IS&A). This is a hybrid position. This position will be responsible for various aspects of security, including personnel security, preparing and receiving visit certifications, foreign travel tracking, international travel tracking, pre- and post-foreign travel briefings, document control, and communications security (COMSEC). This position will also ensure compliance with regulations utilizing NISPOM and other program-specific security directives. Management responsibilities include facility clearances, staff clearances, and providing oversight for classified projects and resources. This is a full‐time, hybrid position, Monday through Friday, with flexibility around core hours and less than 10% travel expected. Travel may include continental United States and outside continental United States locations.