Are you ready for a rewarding career challenge?
Unleash your potential at Leidos, where we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customer’s success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.
If this sounds like an environment where you can thrive, keep reading!
Leidos is seeking a junior Security Specialist at RAF Mildenhall in Suffolk, England. This role will support a major program aligned with Air Combat Command’s Intelligence, Surveillance, and Reconnaissance (ISR) mission. An active Top Secret/SCI clearance with Polygraph is required. As a Security Specialist, you will be a key contributor to the protection and success of this critical mission. If you’re ready to elevate your expertise and play a vital role in national security, we encourage you to apply.
What You’ll Do:
Manage facets of a Sensitive Compartmented Information (SCI) program and Special Access Program (SAP) including physical, personnel, information or industrial security.
Implement necessary standards, such as SCIF accreditation standards, to ensure physical separation and TEMPEST.
Provide security office services, ensuring personnel assigned to SCI and SAP billets meet and maintain all security clearance requirements.
Manage the following programs/procedures: Periodic Reinvestigation Program, SAP Nomination Process (SAPNP), Program Access Request (PAR), Media Control Procedures, and Intrusion Detection System (IDS) and the Access Control System (ACS).
Manage personnel, visitors and visit requests in databases used by the Intelligence Community to record eligibility and access to SCI, SAP and other caveated programs such as DISS, JADE, Scattered Castles and Air Force Space Command (SCIBS).
Maintain the Sensitive Compartmented Information Facility (SCIF) accreditations on SCIFs and SCIF accreditation on any future SCIFs.
Maintain Special Access Program Facility (SAPF) accreditations on SAPFs and SAPF accreditation on any future SAPFs.
Validate clearances/accesses and prepare and process outgoing Visit Access Requests.
Maintain records of incoming and outgoing VARs in accordance with established practice.
Conduct Personnel Security functions within special access guidance.
Conduct Tier 1 personnel security reviews.
Complete and coordinate access request packages for access authorization authority.
Create and process waiver packages, to include suspense tracking until completed.
Create and manage personnel folders.
Create, update and distribute entry authority lists.
Prepare classified material for shipment and prepare appropriate forms (AF Forms 310 and 12).
Review documents for proper security classification markings and provide guidance for proper overall classification issues.
What Sets You Apart (Required):
Active DoW Top Secret/SCI with polygraph
Knowledge of DoW, IC and USAF security directives
Highschool and 5 years of experience or an Associate’s degree and 3 years of experience, with 2 years of direct security experience (i.e. junior SSO, Security Assistant or Facilities Manager). Relevant intelligence backgrounds will also be considered.
Eligibility for SAP access required within 6 months of hire
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If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
August 17, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
$59,150.00-$91,000.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health. The company's global workforce of 48,000 collaborates to create smarter technology solutions for customers in heavily regulated industries. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $15.4 billion for the fiscal year ended December 29, 2023.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead, visit careers.leidos.com for our latest opportunities.
