• Linux System Administrator

    Nightwing (Arlington, VA)
    …and vulnerabilities. **Required Skills:** - US Citizenship - Must have an active DoD Secret clearance, TS / SCI clearance is preferred. - Must be able ... Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development,...5+ years of directly relevant experience as a Linux System Administrator . - 2+ years MacOS and… more
    Nightwing (11/26/25)
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  • System Administrator

    Nightwing (Sterling, VA)
    …intelligence community, defense, civil, and commercial markets. Job Title: System Administrator Location: Sterling, VA Clearance: TS / SCI Poly **This ... Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to...position is CONTINGENT upon contract award** The System Administrator (SysA) as part of the… more
    Nightwing (12/26/25)
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  • Expert Systems Administrator

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking a System Administrator for a 200+ FTE technical development program supporting the Sponsor's Entitlement Programs as well as ... /ICAM, Authentication, Authorization, Attributes and Digital Policy Management. The System Administrator will work with a large...of Agile & Scrum methodologies **Required Quals:** + Active TS / SCI with Polygraph + BS degree and… more
    Leidos (01/15/26)
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  • Senior Systems Administrator

    Leidos (Chantilly, VA)
    …service that provides attribute data via an LDAP interface to hundreds of various Sponsor systems Required Qualifications + Active TS / SCI with Polygraph + BS ... **Description** Leidos is seeking a System Administrator for a technical development...+ Must be an expert in using Linux-based operating systems + Must have strong Bash skills + Must… more
    Leidos (01/09/26)
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  • ServiceNow Portal Administrator , Senior

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    …/ SCI with Poly highly desired * ServiceNow Certification: ServiceNow Certified System Administrator (CSA) certification is often a requirement. * Experience: ... **ServiceNow Portal Administrator , Senior** **Category:** Infrastructure/Cloud **Main location:** United States,...5 to 10 years of experience * Security Clearance: TS / SCI required with the ability to obtain… more
    CGI Technologies and Solutions, Inc. (01/01/26)
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  • Linux Systems Administrator

    BCMC (Arlington, VA)
    …and vulnerabilities. Required Skills: - US Citizenship - Must have an active DoD Secret clearance, TS / SCI clearance is preferred. - Requires on-site work ... customer mission. Responsibilities: - Serve as a lead Linux Systems Administrator overseeing Red Hat Enterprise Linux...5+ years of directly relevant experience as a Linux System Administrator . - 3+ years of experience… more
    BCMC (01/15/26)
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  • Systems Administrator /Data Engineer

    TRIAEM, LLC (Springfield, VA)
    Systems Administrator (Data Engineer): Supervises and manages the daily data engineering activities for key software tools including but not limited to JIRA, ... Confluence and Tableau. Works closely with the AMT Systems Administrator (Data Visualization Developer) to support the optimizing of system operations and… more
    TRIAEM, LLC (01/17/26)
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  • Senior Linux Administrator

    Leidos (Fort Belvoir, VA)
    …Fort Belvoir, VA with on-site as needed in Reston, VA._** **Required Clearance:** Active Top Secret with SCI **Key Responsibilities:** + Provision servers ... to work well as a part of the DTRA Systems Administration team using ITIL best practices as well...required + Red Hat Certification - Red Hat Certified System Administrator (RHCSA) (Preferred) Come break things… more
    Leidos (12/30/25)
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  • Systems Administrator

    Leidos (Chantilly, VA)
    …Systems Administrator . Your job will be supporting as a Linux administrator to provide system maintenance, systems performance optimization along with ... software configuration, rebooting, and other remedial actions on customer systems . Work will be conducted on-site at our Chantilly,...experience may be considered in lieu of degree. + TS / SCI with Polygraph is required + Strong… more
    Leidos (01/13/26)
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  • Infrastructure Engineer/ Administrator

    CACI International (Mclean, VA)
    Infrastructure Engineer/ Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI with ... **The Opportunity:** CACI is seeking a highly motivated Linux System Engineer and Administrator with hands on...configuration management and change control. **Qualifications:** _Required:_ + Active TS / SCI w/ Poly clearance is required. +… more
    CACI International (12/26/25)
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