Job DetailsJob Location: San Antonio, TX - San Antonio, TX 78212Position Type: Full TimeJob Shift: Day*This position requires a TS/SCI Clearance and a minimum of two years of Special Access Program Experience* At System High Corporation—a Top Washington-Area Workplace (The Washington Post, 2023–2025), a Top Workplaces Culture Excellence honoree (April 2025), and a three-time VETS Indexes 3-Star Employer—we protect and advance the nation’s most critical missions. As part of our team, you’ll tackle complex security challenges across SAP, SCI, and Collateral programs. If you’re driven by national security, innovation, and integrity, we want to hear from you. System High Corporation delivers the most advanced protection and secrecy solutions to secure and strengthen critical missions, programs, operations, and intelligence activities. We are seeking an Activity Security Representative III to join our team to help contribute to our success and help us solve problems with innovation through intelligence.



The Activity Security Representative’s primary function is to provide multi-disciplined security support to a customer’s facility and organization. The position will provide “day-to-day” support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities. Performance shall include: Classification reviews of inbound and outbound correspondence Assist in the maintenance of a document accountability database and associated correspondence Processing inbound and outbound classified mail and receipt records Perform destruction of classified materials Process magnetic media for accountability Reproduction support for classified materials Maintain various daily logs for a variety of administrative functions associated with document control Assist in the processing of inbound data and outbound data transfer files Transfer electronic data files to internal customers Maintain an extensive customer database point of contact listing Assist wit

📌 Activity Security Representative III (San Antonio)
🏢 SYSTEM HIGH
📍 San Antonio