• Systems Administrator - COMSEC

    KBR (Chantilly, VA)
    …travel. + Working Hours: Standard 40 hours per week. Qualifications: Required: + Clearance: Top Secret SCI with Polygraph. + Experience: 3+ years' experience ... Administrator - COMSEC Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to… more
    KBR (12/06/25)
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  • Linux Systems Engineer

    SAIC (Arlington, VA)
    …dark web. Clearance/Citizenship Requirements: + US Citizenship with an active Top Secret Clearance with ability to obtain SCI (Active and/or PR within last ... junior team members. + Initiative in finding and prioritizing tasks, including security audits and patch management, is essential. + Excellent communication skills… more
    SAIC (12/06/25)
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  • Senior Systems Engineer

    Leidos (Alexandria, VA)
    …Chantilly, VA + Aurora, CO + St. Louis, MO + Tucson, AZ **Clearance Level Required:** Top Secret with SCI eligibility and able to obtain a Polygraph. ... **Description** Leidos National Security Sector combines technology-enabled services and mission software...the fiscal year ended January 3, 2025. For more information , visit www.Leidos.com . **Pay and Benefits** Pay and… more
    Leidos (11/22/25)
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  • Mid-Level Systems Engineer

    Leidos (Chantilly, VA)
    …Chantilly, VA + Aurora, CO + St. Louis, MO + Tucson, AZ **Clearance Level Required:** Top Secret with SCI eligibility and able to obtain a Polygraph. ... **Description** Leidos National Security Sector combines technology-enabled services and mission software...the fiscal year ended January 3, 2025. For more information , visit www.Leidos.com . **Pay and Benefits** Pay and… more
    Leidos (11/22/25)
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  • Multi Cloud Engineer Architect SME

    Leidos (Fort Belvoir, VA)
    …relevant to DoD, federal, and intelligence mission systems. **Basic Qualifications:** + Active DoD Top Secret clearance with SCI Eligibility. + DoD 8570 IAT ... The I3TS program provides enterprise-wide IT support to enable DTRA's Information Management & Technology Directorate (ITD) to consolidate, modernize, and… more
    Leidos (11/15/25)
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  • System Operations/Administrator

    Sciolex Corporation (Chantilly, VA)
    …related acquisition experience per level if no bachelor's degree is held. Active Top Secret / SCI clearance with a Counter-Intelligence Polygraph Experience as ... hardware, software, and network-related issues. Monitor system performance and security , ensuring compliance with organizational policies and best practices. Manage… more
    Sciolex Corporation (10/14/25)
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  • Radar Research Engineer

    KBR (Chantilly, VA)
    …travel. + Working Hours: Standard 40 hours per week. Qualifications: Required: + Clearance: Top Secret / SCI + Education: Pursuing Bachelor's, Master's, or PhD ... Radar Research Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to… more
    KBR (10/04/25)
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  • Storage Engineer

    William C Brown Inc (Springfield, VA)
    …C2S experience - Location: On Customer Site- US Citizenship Required * Active TS / SCI Security Clearance * Location Springfield Full-Time/Part-Time Full-Time ... Exempt/Non-Exempt Exempt Security Clearance Requirements Active TS / SCI Clearance. This position is currently accepting applications. more
    William C Brown Inc (12/01/25)
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  • Senior Principal Offensive Security

    Oracle (Richmond, VA)
    …attacks on software + Experience working with large enterprise customers + Active TS / SCI Clearance Disclaimer: **Certain US customer or client-facing roles may ... **Job Description** Job Description **Offensive Security Engineer** Oracle Cloud Infrastructure Group The Oracle...as immunization and occupational health mandates.** **Range and benefit information provided in this posting are specific to the… more
    Oracle (12/20/25)
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  • Information System Security Manager…

    KBR (Alexandria, VA)
    Title: Information System Security Manager (ISSM) KBR is...travel + Travel 25% of time Basic Qualifications: + * TS / SCI required* ​ + A minimum of 2 ... seeking an Information System Security Manager (ISSM) to join our team in either...years of Information Technology Information Assurance, or Cyber Security engineering experience.… more
    KBR (12/19/25)
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