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System High Corporation is seeking an Activity Security Representative III in the Arlington, VA area to support SAP, SCI, and collateral programs. The role centers on day-to-day security operations, access control, and data handling in a high-security environment.
Candidates must have a current Top Secret clearance with SCI eligibility and be willing to undergo polygraph testing. This position emphasizes leadership, compliance, and collaboration with government personnel.
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:
This job description is not designed to cover or contain all job duties required of the employee. There may be additional activities, duties and/or responsibilities that are required for this position that are not listed in this job description.
In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.
System High is a Military friendly employer. Our extensive work on behalf of the U.S. government offers those who have served in uniform an opportunity to continue to serve their country in a new and exciting way while enjoying a successful civilian career.
System High values the power and strength of diverse backgrounds on the culture and performance of our company. We strive to maintain an inclusive culture to encourage each employee to bring their whole self to the mission.
System High Corporation is committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender, gender identity or expression, veteran status, or any other characteristic protected by law. We are proud to be an equal opportunity workplace.
If you require a reasonable accommodation to apply for a position with us, please email