Site Security Specialist

Description

The Security Engineering Program (SEP) under Homeland and Force Protection at Leidos currently has an opening within the Professional Services Support (PSS) Program for a Site Security Specialist. The Site Security Specialist will directly support the customer and be committed to protecting classified information, assets, and secure spaces. The candidate will serve as a security team member and will directly interface and collaborate with key leaders and customers.

Specifically, the candidate will safeguard all assets and information, process and manage SCIF access control requirements and visit requests, provide site escort to uncleared vendors, offer security training, and oversee the implementation of security policies and procedures within the facility. Areas of emphasis are physical security, information security, OPSEC, and verification of clearances and accesses. The Site Security Specialist will be required to interact with and provide security support to senior DoD officials.

Other duties may be assigned as needed. The position is at a customer site in the Sacramento, CA, metro area.

• Must possess a minimum of a TS/SCI clearance
• Minimum of eight (8) years of U.S. government experience in SCIF/SAPF Physical Security management with some Information Security, Personnel Security (PERSEC), and Operations Security (OPSEC) experience.
• Bachelor's degree in a related area or an additional 2 years of experience.
• Comprehensive knowledge of ICD 705, the NISPOM, and applicable manuals, directives, policies, and procedures.
• Hands‑on experience in physical security assessments/inspections and Sensitive Compartmented Information Facility (SCIF)/Special Access Program Facility (SAPF) security requirements.
• Must be an expert in managing the day‑to‑day security operations of a SCIF.
• Excellent communication (both oral and written), organizational, analytical, and interpersonal skills.
• Computer literacy:
  Proficient in Microsoft Suite, including Word, Excel, Outlook, and Access.

• Experience as a Facility Security Officer.
• Experience as a COMSEC Custodian.
• Experience developing and implementing OPSEC plans.
• Knowledge of Access Control and Intrusion Detection Systems.
• Experience in accreditation of SCIFs/TSCIFs.
• Experience as a security professional supporting the Intelligence Community.

$82,550.00 – $ (general guideline; not a guarantee of compensation)

January 8, 2026 – The requisition will remain open for at least 3 days with a projected close date no earlier than 3 days after the posting date.

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit

Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment‑related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the  automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via Whats App, Telegram, etc.

If you received an email purporting to be from Leidos that asks for payment‑related information or any other personal information (e.g., about you or your previous employer), please notify Leidos immediately by emailing  If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.