Contractor Special Security Officer (CSSO)

Description

This Department of War enterprise data and analytics program delivers mission-critical capabilities that enable leaders across the Department to make faster, better-informed decisions using trusted data at scale. Leidos Digital Modernization sector is seeking an experienced Contractor Special Security Officer (CSSO) to support the delivery, enhancement, and adoption of enterprise data and analytics products used across multiple DoD organizations.

Leidos is seeking a proven, experienced security professional to manage a portfolio of programs supporting our DoW and Intelligence Community (IC) customer. This is an incredible opportunity to apply your security experience across multiple locations and provide direction and oversight to SCI programs in support of impactful business operations.

Position Summary

The position requires a strong background in counterintelligence awareness and briefings, personnel security clearance processing and experience managing the physical security requirements of SCIFs for a customer within the intelligence community.

The selected candidate will need to be well versed in NISPOM, Intelligence Community Directives and SEADs, a self-starter who can prioritize security actions, provide excellent communication to employees, management and government customer, and a result driven professional to handle security issues.

Primary Responsibilities:

• Maintain and manage program security requirements to include all customer compliance requirements

• Provide security clearance processing, physical/industrial security, computer investigations, and security operations support.

• Prepare and disseminate security requirements, guidance, and procedures.

• Provide Clearance and SCI briefing/debriefing to employees.

• Ensure personnel are aware of the reporting responsibilities such as Foreign Contact, Foreign Travel and Outside Activities.

• Track Government contractor badge renewal submission.

• Receive, control and safeguard SCI and collateral information.

• Collaborate with members of the DoD, the IC and other officials as required to maintain knowledge and understanding of current security regulations.

• Monitor, update, and maintain appropriate records (e.g. database and hardcopy) of security actions.

• Coordinate information with internal and external security offices and divisions.

• Interpret security policy on matters pertaining to processing, dissemination, and controlling of classified materials.

• Monitor and manage security operations and provide status reports and recommendations.

• Create, manage, and execute Security Awareness and CI training programs.

• Collaborate with internal and external managers to ensure understanding of program operations.

• Draft or create security volumes for Request for Information or Proposals.

• Work closely with program manage team and government customer.

• Conduct foreign travel pre-post foreign travel briefings.

• Author CI briefings and provide counterintelligence updates.

• Conduct initial inquiries and write final reports related to security incidents and violations.

• Respond to after hour intrusion detection systems (during the week and on weekends).

• Maintain program security requirements to include; updating SOPs, maintaining personnel records via SIMs, updating and maintaining security education and awareness programs.

Required Qualifications:

• Bachelor's degree with 12+ years of experience in industrial / physical security. Additional years of relevant industrial security experience may be considered in lieu of a degree.

• Experience delivering full range of security services including, but not limited to: All aspects of pre-screening hiring and onboarding new contractors, administering briefings/debriefings, security incident management, mentoring and instructing employees to ensure program and employee compliance with sponsor CI/Security regulations.

• Experience interpreting customer security policies and CI risk mitigation.

• Excellent oral and written communication skills with experience and ability to maintain program required Security documentation and to collaborate, coordinate, deconflict, and engage with various customer groups and a multi-cultural diverse workforce.

• Experience managing and having oversight of large programs.

• Experience briefing multi-level audiences is a must.

• Advanced interpersonal and customer service skills as well as the ability to provide concise and compelling briefings to audiences of varied experience levels.

• Ability to make sound decisions and advise PMO and customer leadership on sensitive personnel and security related matters.

• Self-starter who has experience integrating with a customer security team and can independently perform program security duties with little supervision.

• Experience providing extended, direct and substantive guidance to employees working in high threat, austere, denied area and warzone environments.

• Working knowledge of operational security and CI issues.

• Diligent in obtaining, training, implementing, and documenting new and relevant CI and security information to support evolving customer needs.

• Well organized with a proven ability to prioritize, complete, and update customer and program leadership on all security concerns and coordinate resolutions.

• Manage SCIF Physical security requirements to include alarm response test, entry/exit bag checks, UL Certification Test, facility annual inspection and self-inspections.

• Familiarity with CT mission and overseas deployments.

• Demonstrated ability to work independently and with little supervision.

• Strong background utilizing Microsoft Office products such as Word, Excel and PowerPoint.

• Evaluate and interpret clearance decisions made by the government customer.

• Knowledge of multiple Security functional areas; physical, ComSec, personnel and information security.

• An understanding of security principles and government special security regulations (i.e. ICDs, NISPOM and SEADs).

• Top Secret//SCI with CIPolygraph clearance is required. Applicant selected must have and maintain government security clearance at the TS//SCI level with CIpolygraph.

Preferred Qualifications:

• Experience with leading or managing a Contract security programs

• Experience modifying or building SCIFs to ICD 705 technical specification requirements.

• FSO, CSO, ISP, SFPC or CSSO Security training/certificate(s).

• Demonstrated experience working with SIMS

• Demonstrated experience working with DISS and other customer personnel systems

• Demonstrated experience working with communications security.

Clearance Required:

• Must possess an active TS/SCI with CI Poly at time of consideration.

#ADVANA

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:

May 21, 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:

Pay Range $105,300.00 - $190,350.00

The Leidos pay range for this job level is a general guideline onlyand 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.

About Leidos

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 .

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at .

Securing Your Data

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Commitment to Non-Discrimination

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.

REQNUMBER: R-00183854-OTHLOC-PL-2D1012

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.