Activity Security Representative III with Security Clearance

System High Corporation; Bedford (MA); On-site; USD 120,000 - 180,000; Full time

Job summary

System High Corporation is seeking an Activity Security Representative III to support SAP/SCI and Collateral programs at a high-security facility. The role involves day-to-day security operations, classification reviews, and safeguarding sensitive information with adherence to customer procedures.

The ideal candidate will have a TS/SCI with SCI eligibility, 2+ years SAP experience, and the ability to handle complex security tasks while ensuring compliance and integrity across programs.

Qualifications

• Minimum of two years of Special Access Program (SAP) Experience.
• Current Top Secret Clearance with SCI Eligibility.
• Eligibility for access to Special Access Program Information (SAPNP) and related documentation.
• Willingness to submit to a Counterintelligence polygraph.

Responsibilities

• Provide multi-disciplined security support for Collateral, SCI, and SAP activities.
• Perform classification reviews of inbound/outbound correspondence and maintain accountability databases.
• Process inbound/outbound classified mail, faxes, and receipts; maintain logs and security records.
• Assist with facility access control, visitor logs, and badge preparation.
• Review and monitor security clearance processing with government personnel to ensure proper actions.
• Support security awareness programs and provide guidance to team members.

Skills

Leadership

Mentoring

Quality assurance

Education

Bachelor's degree

Associate's degree

Job description

• 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 with researching, processing, filing, and maintaining inbound and outbound visit notices
• Escort facility visitors and maintains associated logs
• Assist in the preparation of facility access control badges
• Conduct entry and exit inspections
• Assist in the maintenance of facility access control entry systems, to include visitor control
• Perform data entry to the Personnel Access Security System database and maintain all customer sponsored billets and quota information
• Assist in maintaining personnel security files for all personnel of the supported element
• Follow and enforce the customer's Standard Operating Procedures
• Provide support for the security awareness and education programs
• Perform miscellaneous administrative support functions as directed by the contractor site lead and/or the Senior Security Representative
• Review, track, and monitor security clearance processing activities with appropriate government personnel to achieve appropriate clearance actions
• Participate in Air Force SAP security compliance inspections of government organizations and industry
• Implement Top Secret Control for accountable material and associated correspondence
• Prepare and/or process inbound and outbound classified mail, faxes, courier packages and receipts
• Prepare, process, and/or review Program Access Request (PARs) for accuracy and access eligibility
• Conduct Defense Central Index of Investigations (DCII), Joint Personnel Access System (JPAS), and SAPNP reviews of candidates being submitted for SAP access
• Perform data entry and record checks in the Air Force Access Data System (AFADS) and maintains all customer sponsored personnel access information current
• Perform indoctrinations
• Provide leadership, mentoring, and quality assurance for Team Members Qualifications Years of Experience
• 5 - 7 years related experience
• Security Fundamentals Professional Certification (SFPC) counts towards 3 years of experience
• Special Program Security Certification (SPSC) counts towards 5 years of experience
• Maximum equivalent experience for SPED Certifications is no more than 5 years
• Note: One year experience for each separate SPED Certification; not to exceed three (3) years Education
• Bachelor's degree (Desired) Bachelor's degree counts as four years of experience, Associate's degree in related area counts as two years of experience. Clearance
• Current Top Secret Clearance with SCI Eligibility
• Eligibility for access to Special Access Program Information
• Willingness to submit to a Counterintelligence polygraph Additional Information
• 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
• Legal notices can be viewed on the following PDFs: Know Your Rights: Workplace Discrimination is Illegal ; EPPA Notice ; FMLA Notice