• Senior Linux System Administrator

    GovCIO (Madison, WI)
    **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active Secret clearance to join an Operations team. This position ... role, you will work with other members to mitigate vulnerabilities on Linux -based systems , implement STIGs, address POAMs, and mitigate Zero-Day vulnerabilities.… more
    GovCIO (11/07/25)
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  • Senior Linux Administrator

    Leidos (Fort Belvoir, VA)
    …DTRA I3TS Infrastructure Services team to maintain and optimize the Linux production environment.The candidate will be responsible for sustaining Linux ... entire service lifecycle from design through development to production, building and deploying Linux based systems in a virtual environment. Candidate should be… more
    Leidos (12/30/25)
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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 ... system_ **_What Required Skills You'll Bring:_** + _Extensive background in diverse Linux operating systems and high performance computing_ + _Extensive… more
    Parsons Corporation (11/15/25)
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  • NSIPS Sr Systems Administrator…

    General Dynamics Information Technology (New Orleans, LA)
    …Obtain:** Secret **Public Trust/Other Required:** None **Job Family:** IT Infrastructure and Operations **Skills:** Computer Systems ,Operating Systems ... SECRET * Required Skills and Abilities: Experience with **Identity Management Systems ** . Experience infrastructure including but not limited to: data center… more
    General Dynamics Information Technology (01/10/26)
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  • Senior Network Engineer - Top Secret

    Cambridge International Systems Inc (Charleston, SC)
    …Engineer - Top Secret Clearance | Charleston, SC Cambridge International Systems , Inc. Join a dynamic global team united by shared values: commitment, integrity, ... both enterprise and tactical Marine Corps networks, including secure communication systems , field-deployable infrastructure , and integration with Department of… more
    Cambridge International Systems Inc (12/18/25)
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  • Cyber Security Analyst III- Secret

    Cambridge International Systems Inc (Philadelphia, PA)
    …Analyst III - Secret Clearance | Philadelphia, PA Cambridge International Systems , Inc. Join a dynamic global team united by shared values: commitment, ... is a full-time, CONUS position requiring an active DoD Secret clearance. What You'll Do As a Cyber Security...Installs and operates security software and measures to protect systems and information infrastructure , including firewalls and… more
    Cambridge International Systems Inc (10/17/25)
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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...for implementation, troubleshooting and maintenance of Information Technology (IT) systems . + Manage IT system infrastructure and… 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 ... **es include but are not limited to:** + Configure and manage Linux operating systems . Installs/loads operating system software, troubleshoots maintains… more
    ManTech (12/04/25)
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  • Linux System Engineer

    Huntington Ingalls Industries (Dayton, OH)
    …Time/Salaried/Exempt Anticipated Salary Range: $81,937.00 - $125,104.00 Security Clearance: Secret Level of Experience: Mid This opportunity resides with Warfare ... Systems (WS), a business group within HII's Mission Technologies...a technical lead to manage, administer, support, and enhance Linux cloud and on premises compute environments, ensuring continuous… more
    Huntington Ingalls Industries (11/17/25)
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  • IT Systems Engineer, Sr / Top Secret

    Lockheed Martin (King Of Prussia, PA)
    …located in Valley Forge, Pennsylvania\. Deep expertise in technical leadership, Linux server, Windows server, Storage and network administration are essential ... a successful synergy between program deliverables and the underlying IT infrastructure \. The selected candidate will be responsible for the ongoing operations,… more
    Lockheed Martin (11/07/25)
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