Leidos
Jr. Special Security Officer (SSO)
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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.
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What Sets You Apart (Required):
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- Active DoW Top Secret/SCI with polygraph
- Knowledge of DoW, IC, and USAF security directives
- High school 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
- AMSOPP1
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.
Original Posting:
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.
Pay Range:
$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.
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