This role functions as the contractor counterpart to a Government Special Security Officer (GSSO) or Program Security Manager (PSM) and is responsible for the day-to-day management, oversight, and execution of the SAP security program in a complex, multi-program environment. Overview: The Contractor Special Security Officer (CSSO) serves as the lead on-site contractor security authority for all Special Access Program (SAP) matters supporting the Advanced Sensor Systems Naval Detachment.