• Senior Counterintelligence…

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Counterintelligence (CI) Investigator ** to join our team in **Chantilly, VA.** **Responsibilities ... guidelines outlined in ICD 704. **Clearance Requirements:** + Must have a current/active TS / SCI w/Polygraph. **Physical Requirements:** + Must be able to remain… more
    ManTech (12/02/25)
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  • Counterintelligence Investigator…

    General Dynamics Information Technology (El Segundo, CA)
    …ID:** RQ212480 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None ... a systematic manner through direct and indirect questioning to obtain information of security, counterintelligence and/or intelligence value. Prepares accurate… more
    General Dynamics Information Technology (01/10/26)
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  • Reachback Mid-level Counterintelligence…

    Amentum (Devens, MA)
    …+ Provide analysis to support CI investigations and TARP. **Requirements** + Active TS / SCI Clearance with the ability to obtain and maintain a Polygraph ... SF INTEL NCO or 180A SF WO with ASOT-III, USAF 7S071 - Special Investigator (SI), USMC 0211 Counterintelligence /HUMINT (CI/HUMINT) specialist OR other DoD joint… more
    Amentum (12/12/25)
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  • Personnel Security Specialist VI - TS

    Xcelerate Solutions (Washington, DC)
    …/ certification as an investigator and / or adjudicator is required + Current Top Secret ( TS ) security clearance and must be capable of obtaining ... investigations. + Experience conducting, directing, or evaluating TS / Secret investigations with preferred experience in counterintelligence / espionage,… more
    Xcelerate Solutions (11/13/25)
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  • Counterintelligence Threat Technical…

    ManTech (Springfield, VA)
    …discipline. + Experience with malware analysis. **Clearance Requirements:** + Must have a TS / SCI with the ability to pass a Poly **Physical Requirements:** + ... **MANTECH** seeks a motivated, career and customer-oriented ** Counterintelligence Cyber Threat Technical Analyst** to join our team in **Springfield, VA or St.… more
    ManTech (01/01/26)
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  • Open Source Intelligence Investigator

    SOS International LLC (Reston, VA)
    Reston, VA, USA Full-time FLSA Status: Exempt Clearance Requirement: Top Secret SCI w/ Poly **Company Description** Founded in 1989, SOSi is among the ... on the development of OSINT products. **Qualifications** Minimum Requirements + Active in-scope TS / SCI with Polygraph. + Fifteen years of relevant experience OR… more
    SOS International LLC (11/21/25)
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  • Cyber Detection Engineer

    Leidos (Ashburn, VA)
    …currently possess a Top Secret Clearance with the ability to obtain a Top Secret / SCI Clearance Come break things (in a good way). Then build them ... monitoring, intrusion detection and protective security services to CBP information systems including local area networks/wide area networks (LAN/WAN), commercial… more
    Leidos (12/19/25)
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  • Personnel Security Continuous Evaluation…

    SAIC (Springfield, VA)
    …Investigations. **_This position can quickly adjudicate a polygraph for those with an active TS / SCI . An active TS / SCI is required to be ... SEAD (3, 4, & 6) guidance. **Qualifications** **Skills and Experience Required** + **Active TS / SCI is required** + **Ability to obtain a polygraph is required**… more
    SAIC (01/06/26)
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