• System Administrator - Linux

    Leidos (Annapolis Junction, MD)
    **Description** ** System Administrator - Linux ** **Leidos** has a new and exciting opportunity for a ** System Administrator - Linux ** in our ... security scanning for equipment suites in accordance with the System Security Plans for these systems to...systems (ex. Network Switches, Routers, LANs, & cabling, Windows/ Linux operating systems , VMware, etc.). + Must… more
    Leidos (01/06/26)
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  • Senior Linux Systems

    Leidos (Camp Springs, MD)
    …Certified Practitioner (SSCP)). + Training (DISA-US1384 DCWF Linux System Administrator / DISA-US1390 DCWF Windows Systems Administrator ). + 3+ years ... The Leidos Digital Modernization Sector is seeking a **_Senior Linux Systems Administrator_** in support of the...Hat Enterprise Linux environment. As a Senior System Administrator , you'll be instrumental in designing,… more
    Leidos (12/20/25)
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  • Senior Linux Systems

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **Intelligence Sector,** **Cyber & ... difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where...Ten or more (10) years of experience as a System Administrator (SA) supporting programs and contracts… more
    Leidos (01/06/26)
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  • Senior Linux Systems

    SAIC (Princeton, NJ)
    **Description** SAIC is recruiting for a **Senior Linux Systems Administrator ** to join our program as a general technologist to support our NOAA GFDL ... interrupt tiered support environment requiring rapid response to the most complex customer systems inquiries. On a daily basis this individual may divide their time… more
    SAIC (01/08/26)
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  • Senior Linux Administrator

    Leidos (Fort Belvoir, VA)
    **Description** The DTRA program at Leidos is seeking a **Senior Linux Administrator ** in Fort Belvoir, VA to support the DTRA I3TS Infrastructure Services team ... from design through development to production, building and deploying Linux based systems in a virtual environment....required + Red Hat Certification - Red Hat Certified System Administrator (RHCSA) (Preferred) Come break things… more
    Leidos (12/30/25)
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  • Sr. System Administrator

    Arena Technical Resources, LLC (Reston, VA)
    Sr. System Administrator Location: Reston , VA, US Job ID: ATR 17710 Job Description Job Title: Sr. System Administrator Location: Reston , VA - ... TS/SCI with CI Polygraph Job Description: The job duties of the Sr. System Administrator are as follows: * Plans, designs, and implements infrastructure… more
    Arena Technical Resources, LLC (01/01/26)
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  • System Administrator

    Leidos (Lawton, OK)
    …OK. The Systems Administrator will have experience in VMware virtualization and Linux systems to join our system administrator team. You will ... ready for your next career challenge?** We are seeking a Secret cleared ** Systems Administrator ** to support Postproduction Software Support (PPSS) and Post… more
    Leidos (01/06/26)
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  • Classified Area System Administrator

    Leidos (Huntsville, AL)
    …Office reporting through the Digital Modernization sector, is seeking an early career ** System Administrator ** to join our team. In this role, you'll play ... Degree** and a minimum of two 2 years of System Administrator experience. + **Current Secret clearance**...Familiarity with Risk Management Framework requirements for Windows and Linux systems . + Strong written and verbal… more
    Leidos (11/06/25)
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  • Systems Administrator

    Leidos (Chantilly, VA)
    Administrator . Your job will be supporting as a Linux administrator to provide system maintenance, systems performance optimization along with user ... system anomalies and independently make configuration updates to ensure 99.999% system availability requirements. + Analyze Linux log data to effectively… more
    Leidos (01/13/26)
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  • Systems Network Administrator

    Leidos (Laurel, MD)
    …and manage Linux , UNIX and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, et al. + Build, ... **Leidos** has a new and exciting opportunity for a ** Systems Network Administrator ** in our **National Security...**Basic Qualifications:** + Ten (10) years' experience as a system administrator in programs and contracts of… more
    Leidos (11/18/25)
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  • System Administrator

    SAIC (Fort Gordon, GA)
    **Description** SAIC is currently hiring a ** System Administrator ** to support the INSCOM Military Intelligence Brigade (MIB) in Fort Gordon, GA. **Job ... Level I/II sustainment of INSCOM CI, as well as System Administration for Windows, Linux , and Solaris...and Solaris administration and other application expertise on emerging systems + Provide support to the underlying system more
    SAIC (12/19/25)
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  • Senior Systems Administrator 10k…

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Senior Systems Administrator in our **Intelligence Sector's (NSS) Cyber & Analytics Business ... make a difference in National** **Security!** As a Senior Systems Administrator you will play a vital...and Windows environments. + Implement, troubleshoot, and maintain IT systems . + Manage daily IT system configuration… more
    Leidos (11/15/25)
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  • ServiceNow Systems Administrator

    SAIC (Annapolis Junction, MD)
    …process + Configure and manage UNIX, Linux and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and ... + Minimum of 9 years of experience as a Systems Administrator in programs and contracts of...ServiceNow with other applications is required Desired: + ServiceNow System Administrator certification + DoD 8570 compliance… more
    SAIC (11/06/25)
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  • Systems Network Administrator

    Leidos (Laurel, MD)
    …and storage environments; Linux , UNIX and Windows operating systems ; installs/loads operating system software, troubleshoots, maintains integrity; and ... **Description** **Leidos** has a new and exciting opportunity for a ** Systems /Network Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics… more
    Leidos (12/20/25)
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  • Systems Administrator

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking an experienced ** Systems Administrator ** to join our team in supporting mission-critical IT infrastructure. This role is ideal ... Poly security clearance. + CompTIA Security+ certification + Proven experience in systems administration for Windows and/or Linux environments. + Hands-on… more
    Leidos (01/13/26)
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  • Senior Systems Administrator

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking a System Administrator for a technical development program supporting the Sponsor's Attribute Services within the IDAM/ICAM ... space.As a System Administrator on this program, you will...of degree + Must be an expert in using Linux -based operating systems + Must have strong… more
    Leidos (01/09/26)
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  • Systems Administrator

    SAIC (Washington, DC)
    …upon contract award, with an anticipated decision expected by fall 2025.** The System Administrator responsibilities include, but are not limited to: + Manage ... and maintain the infrastructure that powers networks and operating systems such as UNIX, Linux , and Windows. + Install and configure hardware and software,… more
    SAIC (12/06/25)
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  • Network Systems Administrator

    Leidos (Stennis Space Center, MS)
    …The Digital Modernization Sector at Leidos currently has an opening for a Network Systems Administrator /Engineer to work at our Stennis Space Center, MS customer ... Microsoft and Linux OS environments + Hands-on experience with reviewing system logs and events to resolve issues + Demonstrated analytical approach to solve… more
    Leidos (01/06/26)
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  • Systems Administrator

    Leidos (Piketon, OH)
    **Description** Leidos has an exciting and rewarding opportunity for a Systems Administrator to work independently with minimal supervision providing systems ... Must have strong interpersonal skills. + Experience with Microsoft Windows and Server Operating Systems and/or Oracle, RHEL and Linux Operating Systems . +… more
    Leidos (12/12/25)
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  • Unix Administrator

    SAIC (Washington, DC)
    …using Cohesity and Veritas. Key Responsibilities: + Manage, configure, and maintain UNIX/ Linux systems (RHEL, CentOS, Ubuntu, AIX, or Solaris depending on ... modernization efforts. **Qualifications** Required: + BS and 5+ years of hands-on UNIX/ Linux system administration experience.( 4 years experience in lieu of… more
    SAIC (12/12/25)
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