• Linux System Administrator

    CACI International (Sarasota, FL)
    …an immediate opening for a Linux Systems Administrator, with a Top Secret Clearance ( TS /SCI) with polygraph for our corporate development/test ... Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel...fielded systems . CACI is seeking a development Systems Administrator with Linux experience for our… more
    CACI International (01/02/26)
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  • Linux Engineer

    Amentum (Chantilly, VA)
    …configuration changes, and ensure the reliability, security, and performance of Linux systems across the enterprise. **Responsibilities:** Design, implement, ... maintain, and troubleshoot Linux -based systems and infrastructure for a number...flavors + Nginx + Certificate Management **Clearance Required:** + TS /SCI with poly **Minimum Education:** + Bachelors **Minimum Years… more
    Amentum (12/31/25)
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  • Linux Engineer

    ManTech (Norfolk, VA)
    …and 5+ years of relevant IT systems experience + Experience in system administration , with proficiency in both Linux and Windows environments + Must have ... environments, including familiarity with Active Directory. + Support virtual Linux systems using VMWare ESXi and assist...clearance and be willing and able to obtain a Top Secret . **Physical Requirements:** + The person… more
    ManTech (12/19/25)
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  • Associate Mgr, Information Systems

    Lockheed Martin (Titusville, FL)
    **Description:** **This position requires an active Top Secret ** **clearance\.** This Lockheed Martin Space position will support multiple Space programs\. The ... \(Enterprise Business & Digital Transformation\) organization\.\*\ **Basic Qualifications:** Active Top Secret Clearance Demonstrated experience leading IT… more
    Lockheed Martin (12/13/25)
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  • Secret Linux System Administrator…

    Insight Global (Colorado Springs, CO)
    …Springs, CO areas is looking for a qualified Linux System Administrator with a Top Secret clearance to join their team supporting a DoD program. The System ... environments, lab assets, & IT infrastructure. Candidate will sustain operational Red Hat Linux systems and provide daily support for hardware and software… more
    Insight Global (01/07/26)
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  • Senior Linux System Administrator

    Parsons Corporation (Aberdeen, MD)
    …possible. **Job Description:** _Parsons is looking for an amazingly talented_ **_Senior Linux Systems Administrator_** _to join our team!_ **_What You'll Be ... + Linux + certification (or equivalent) + Security+ certification (or equivalent) + Top Secret clearance **Security Clearance Requirement:** An active Top more
    Parsons Corporation (11/15/25)
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  • Senior Linux System Administrator

    ManTech (Laurel, MD)
    …**Preferred Qualifications:** + Experience/familiarization with full lifecycle management of Linux systems , to include provisioning, configuration management and ... but are not limited to:** + Configure and manage Linux and Solaris operating systems and installs/loads...with NetAPP **Clearance Requirements:** + Must have a current/active Top Secret /SCI with Polygraph **Physical Requirements:** +… more
    ManTech (12/24/25)
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  • Linux System Administrator

    ManTech (Laurel, MD)
    …Q** **ualifications:** + Experience/familiarization with full lifecycle management of Linux systems , to include provisioning, configuration management and ... NetApp + Experience with Splunk **Clearance Requirements:** + Must have a current/active Top Secret /SCI with Polygraph **Physical Requirements:** + The person in… more
    ManTech (12/04/25)
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  • Linux System Administrator

    Nightwing (Arlington, VA)
    …is seeking a Technical Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development, and deployment of ... and equipment in the lab environment. - Providing ongoing systems administration , technical support, upgrades, patching and...- US Citizenship - Must have an active DoD Secret clearance, TS /SCI clearance is preferred. -… more
    Nightwing (11/26/25)
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  • Senior Linux /Unix Administrator

    S4 Inc. (Omaha, NE)
    …reporting, including patching, compliance, and outage information Required Qualifications: + Active Top Secret security clearance and eligible for SCI access + ... Linux /Unix Administrator Work Location: USSTRATCOM Offutt AFB Clearance: TS /SCI Education: Bachelor's degree in a related field; equivalent work experience… more
    S4 Inc. (01/07/26)
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