• Principal Cyber Security Engineer

    ManTech (Chantilly, VA)
    …as Nmap, Nessus, and tcpdump **Clearance Requirements:** + Must have a current/active TS / SCI with CI Polygraph **Physical Requirements:** + The person in this ... **MANTECH** seeks a motivated, career and customer-oriented **Principal Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role supports the… more
    ManTech (12/13/25)
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  • Site Reliability Engineer

    Nightwing (Sterling, VA)
    …the intelligence community, defense, civil, and commercial markets. Job Title: Site Reliability Engineer Location: Sterling, VA Clearance: TS / SCI Poly **This ... position is CONTINGENT upon contract award** The Site Reliability Engineer (SRE) collaboratively works closely with the contract leadership, Platform teams, and… more
    Nightwing (12/26/25)
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  • Senior Systems Engineer

    GovCIO (Hampton, VA)
    …including policy design and periodic access reviews.Implement microsegmentation(host-based or network -based) for sensitive workloads. + Configure and maintain ... **Overview** GovCIO is currently hiring a Systems Engineer for our Zero Trust integration effort with...(or commensurate experience) Required Skills and Experience + Clearance Required: TS / SCI + Knowledge of systems engineering principles… more
    GovCIO (11/22/25)
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  • Test Engineer

    Nightwing (Sterling, VA)
    …in the intelligence community, defense, civil, and commercial markets. Job Title: Test Engineer Location: Sterling, VA Clearance: TS / SCI Poly **This position ... is CONTINGENT upon contract award** The Test Engineer (TE) as part of the Platform Team develops...software compatibility tests with programs, hardware, operating systems, or network environments + Design or develop automated testing tools,… more
    Nightwing (12/26/25)
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  • Senior Embedded Software Engineer

    Carnegie Mellon University (Arlington, VA)
    …and deliverables for customers. Who you are + Candidates must possess an active TS / SCI DoD security clearance issued by the US government. A counterintelligence ... the discipline of software engineering to AI systems. About the role Are you an engineer who enjoys a challenge? Are you excited about working for a Federally Funded… more
    Carnegie Mellon University (11/06/25)
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  • Project Leader, OASW Industrial Base Policy (IBP)…

    The MITRE Corporation (Mclean, VA)
    …have or obtain, within one year from the date of hire, the following clearance(s): Top Secret / SCI Salary compensation range and midpoint: $157,200 - $196,500 ... of project deliverables, in consultation with the Department Chief Engineer : ensure delivered products lead to successful, impactful sponsor...Active Secret with ability to obtain active TS / SCI through the sponsor + Ability to… more
    The MITRE Corporation (01/06/26)
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  • ISSE

    System One (Reston, VA)
    …posture of Kubernetes (OpenShift) and DoD cloud environments. Qualifications: Required: * Active DOD Top Secret / SCI + CI Poly security clearance. * Minimum 5 ... ISSE TS / SCI CI Poly required Reston, VA...ONSITE Compensation: $200,000/year Join our dynamic team as an Information System Security Engineer (ISSE) and make… more
    System One (12/26/25)
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  • Lifecycle Manager

    KBR (Chantilly, VA)
    …compliance with security policies and procedures. Minimum Qualifications: + A CURRENT and ACTIVE TOP SECRET / SCI federal security clearance with a Polygraph ... Certified DevOps Engineer , Certified Kubernetes Administrator) Clearance Requirements: TS / SCI with Polygraph Additional Compensation: KBR may offer bonuses,… more
    KBR (12/05/25)
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  • Mid System Administrator

    Parsons Corporation (Quantico, VA)
    …for managing Windows and Azure server environments **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is required ... of experience, or a Master's with typically 0+ years of experience. + Must possess TS / SCI Clearance with CI Poly. **What Desired Skills You'll Bring:** + AWS… more
    Parsons Corporation (11/15/25)
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  • Linux Administrator

    CACI International (Chantilly, VA)
    …activities in alignment with RMF (Risk Management Framework). Required Qualifications * Active Top Secret clearance ( SCI eligibility strongly preferred). * ... Linux Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance...Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: Regular Percentage… more
    CACI International (11/13/25)
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