• 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 (09/03/25)
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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 (08/16/25)
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  • Enterprise Management Engineer

    Arena Technical Resources, LLC (Springfield, VA)
    Enterprise Management Engineer Location: Springfield, VA, US Job ID: ATR...to the needs of the department MUST HAVE 1. TS / SCI clearance w/ CI poly 2. Must ... 17255 Job Description Description Enterprise Management Engineer is needed to support Data Center Service in support of installation, administration, management,… more
    Arena Technical Resources, LLC (09/30/25)
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  • Hardware Engineer

    Nightwing (Sterling, VA)
    …in the intelligence community, defense, civil, and commercial markets. Job Title: Hardware Engineer Location: Sterling, VA Clearance: TS / SCI Poly **This ... position is CONTINGENT upon contract award** The Hardware Engineer (HWE) collaboratively works closely with the Sponsor, OM, and PO Teams to identify, understand,… more
    Nightwing (09/26/25)
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  • Senior Field Engineer

    ManTech (Reston, VA)
    …complex systems deployed worldwide **Clearance Requirements:** + Must have an active/current ** TS / SCI clearance.** **Physical Requirements:** + Must be able to ... **ManTech** seeks a motivated, career and customer-oriented **Senior Field Engineer ** to join our team in the **Reston, VA** location. This is an **onsite**… more
    ManTech (09/13/25)
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  • Cyber Security Detections Engineer

    McIntire Solutions (Springfield, VA)
    …Cybersecurity technologies. Familiar with MITRE ATT&CK Framework Security Clearance Requirements: * TS / SCI w/Poly Physical Requirements: * Must be able to remain ... Cyber Security Detections Engineer Seeking a motivated, career and customer-oriented Cyber...engineering, against intrusion, anomalies, malware, viruses to identify critical information about source, intended target, affected systems or hosts,… more
    McIntire Solutions (08/28/25)
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  • Sr Engineer -Pub SEC

    Lumen (Herndon, VA)
    …Capacity Planning and Modeling System (CPMS) incorporating the ingest of multi-source network installation and operational information . The CPMS will be utilized ... trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to...experience) **Security Requirements:** + US Citizenship required + Active TS / SCI with Poly + Must maintain eligibility… more
    Lumen (09/18/25)
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  • Senior Quality Assurance Engineer

    ManTech (Herndon, VA)
    …have a current/active Secret clearance with the ability to obtain and maintain a TS / SCI . + The ability to obtain and maintain a DHS EOD suitability is ... **ManTech** seeks a motivated, career and customer-oriented **Senior Software Quality Assurance Engineer and Tester** to join our team in the **DC, Maryland, and… more
    ManTech (08/29/25)
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  • Information Systems Security…

    KBR (Arlington, VA)
    Title: Information Systems Security Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... and shape the future of space defense. + The Information Systems Security Engineer will directly support...shared responsibility models, networking, and/or data experience is required. TS / SCI Clearance is required. Desired: Experience with… more
    KBR (09/13/25)
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  • Cybersecurity Engineer 6

    M. C. Dean (Chantilly, VA)
    …and may meet eligibility requirements, including US Citizenship, for access to classified information ; **ACTIVE TS / SCI w/ POLY REQUIRED** **Education:** + 9+ ... for federal, local and commercial customers across high-growth markets. Responsibilities ** Information System Security Engineer Position Summary** In this… more
    M. C. Dean (08/30/25)
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