• Infinity Systems Engineering (Alexandria, VA)
    …- now, come be more with us! Job Summary: We are seeking a skilled Systems Administrator /Network Engineer to join our mission-driven team. This position offers a ... secure, and troubleshoot Juniper and Cisco switches. + Perform systems administration on Windows and Linux platforms...configuration (Cisco experience is a plus) + Proficient in Linux and Windows system administration + Active… more
    DirectEmployers Association (12/03/25)
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  • System Administrator - Linux

    The Metamorphosis Group (Chantilly, VA)
    System Administrator - LINUX - TS /SCI FSP REQUIRED Chantilly, VA Apply Now Job Description The Metamorphosis Group, Inc, TMG, has an immediate opening ... for a Linux System Administrator , who shall... monitoring. MUST BE US CITIZEN MUST HAVE ACTIVE TS /SCI with FSP US Veterans Preferred **ABSOLUTELY NO THRID… more
    The Metamorphosis Group (12/10/25)
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  • Linux Administrator

    CACI International (Chantilly, VA)
    …(IAM) and integration with Linux systems . * Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) certification. * ITIL, ... Linux Administrator Job Category: Information Technology...with RMF (Risk Management Framework). Required Qualifications * Active Top Secret clearance (SCI eligibility strongly preferred).… more
    CACI International (11/13/25)
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  • Quality Assurance Linux

    Assertive Professionals (Hanover, MD)
    …in the resolution process. Configures and manages LINUX operating systems and installs/loads operating system software, troubleshoots, maintains integrity ... Quality Assurance Linux Administrator About the Organization Established...system and installs Required Experience and Qualifications: + TS /SCI with aPolygraph + Nine (9) years experience in… more
    Assertive Professionals (09/25/25)
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  • Linux Administrator , Senior

    Amentum (Hanover, MD)
    …in the resolution process. Configures and manages Linux operating systems and installs/loads operating system software, troubleshoots, maintains integrity ... If so, look no further. Amentum is seeking a ** Linux Administrator , Senior** to join our team...and configures network components. **Requirements:** * Must have active Top - Secret clearance with SCI and Poly *… more
    Amentum (11/21/25)
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  • Linux Administrator - ACAS

    CACI International (Springfield, VA)
    Linux Administrator - ACAS Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular ... the NGA mission. In this role, we're seeking a ** Linux Administrator - ACAS** who could potentially...vendor updates are received **You'll Bring These Qualifications** + Top Secret /SCI clearance (current), with the ability… more
    CACI International (11/10/25)
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  • LINUX Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …**US Citizenship Required:** Yes **Job Description:** ** Linux Systems Administrator ** **- Active Top Secret Required** Seize your opportunity ... Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job...to make a personal impact as a ** Linux ** ** Systems Administrator ** with GDIT.… more
    General Dynamics Information Technology (12/05/25)
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  • Linux Systems Administrator

    CACI International (Linthicum, MD)
    …Team as a Linux System Administrator !** Are you passionate about Linux systems and eager to make a significant impact? We're looking for a skilled ... Linux Systems Administrator Job...Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel...and enthusiastic Linux System Administrator to join… more
    CACI International (10/18/25)
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  • Linux Systems Administrator

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    ** Linux Systems Administrator ** **Category:** Infrastructure/Cloud **Main location:** United States, Virginia, Arlington **Position ID:** J0925-2110 ... Description:** CGI Federal has an exciting opportunity for a Linux Systems Administrator within our...System Installation and Configuration: Install, configure, and maintain Linux operating systems and applications on physical… more
    CGI Technologies and Solutions, Inc. (10/01/25)
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  • Linux Systems Administrator

    Nightwing (Sterling, VA)
    …intelligence community, defense, civil, and commercial markets. Nightwing is seeking a qualified Linux Systems Administrator to work with a close-nit team ... Skills:** + US Citizenship + Must have an active Secret clearance and obtain a TS /SCI clearance...clearance + 3+ years of directly relevant experience in Linux System Administrator . + Proficiency… more
    Nightwing (11/18/25)
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  • Linux Systems Administrator

    BCMC (Arlington, VA)
    …and business continuity of the customer mission. Responsibilities: - Serve as a lead Linux Systems Administrator overseeing Red Hat Enterprise Linux ... - US Citizenship - Must have an active DoD Secret clearance, TS /SCI clearance is preferred. -...- 5+ years of directly relevant experience as a Linux System Administrator . - 3+… more
    BCMC (10/16/25)
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  • Principal Linux Systems

    Northrop Grumman (Linthicum Heights, MD)
    …best work of your career. Northrop Grumman Classified Solutions is seeking a well-qualified ** Linux Systems Administrator ** to join its dynamic team of ... be limited to the following: + Perform as primary Linux Systems Administrator for a... environments + Candidates must have a current DOD ** Top ** ** Secret ** levelsecurity clearance, to include **SCI… more
    Northrop Grumman (11/19/25)
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  • Senior Linux Systems

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where...Virtualization + **Security Clearance** : Must have an active Top Secret /SCI with Polygraph cssrc conmd If… more
    Leidos (12/16/25)
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  • Senior Linux System

    ManTech (Laurel, MD)
    ManTech seeks a motivated, career and customer-oriented ** Linux ** ** System Administrator ** to join our team in **Laurel, MD.** You will be part of a ... but are not limited to:** + Configure and manage Linux operating systems . Installs/loads operating system...with NetAPP **Clearance Requirements:** + Must have a current/active Top Secret /SCI with Polygraph **Physical Requirements:** +… more
    ManTech (12/11/25)
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  • Linux System Administrator

    ManTech (Laurel, MD)
    MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team in Laurel, MD. You will be part of a dedicated team ... but are not limited to:** + Configure and manage Linux operating systems . Installs/loads operating system...with Splunk **Clearance Requirements:** + Must have a current/active Top Secret /SCI with Polygraph **Physical Requirements:** +… more
    ManTech (12/04/25)
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  • Linux Systems Administrator

    CACI International (Fort Meade, MD)
    …being assembled by CACI, Inc! We have an opening for a ** Linux Systems Administrator ** with an active TS /SCI w/Polygraph clearance. If you thrive ... Linux Systems Administrator Job...CWIP IAT Level 2 or Level 3. **Requirements:** * TS /SCI with polygraph * Heavy Linux administration… more
    CACI International (10/29/25)
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  • Linux System Administrator

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

    Black Bear Technology Solutions, LLC (Adelphi, MD)
    Senior Linux System Administrator Clearance Required: Top Secret or Secret Clearance Locations: Adelphi, MD (Onsite) Position Overview: The ... Senior Linux System Administrator is responsible...standards. + Install, configure, and maintain software and operating systems . + Implement operating system enhancements for… more
    Black Bear Technology Solutions, LLC (11/21/25)
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  • Senior Linux Systems

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... more about how this program "Delivers Mission Success!" Seeking a motivated and experienced Linux System Administrator for a small, diverseteam that provides… more
    Leidos (10/09/25)
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  • Senior Linux System

    ManTech (Fort Meade, MD)
    ManTech seeks a **Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you will provide support for implementation, ... perform capacity analysis and system planning. + Configure and manage Linux and Windows operating systems ; install, load, and enhance OS software… more
    ManTech (10/14/25)
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