• 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 (09/30/25)
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  • Senior Linux Systems

    Leidos (Columbia, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) ... 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 (09/26/25)
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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 ... System Administrator is responsible for leading system administration activities. This position oversees the installation, configuration, maintenance, and… more
    Black Bear Technology Solutions, LLC (08/23/25)
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  • Senior Linux System

    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 ... Doing:_** + _Support the system administration for ARL high performance computers_ + _Support...Required Skills You'll Bring:_** + _Extensive background in diverse Linux operating systems and high performance computing_… more
    Parsons Corporation (08/16/25)
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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) ... 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, ... troubleshooting, and maintenance of IT systems , as well as manage IT system ...and system planning. + Configure and manage Linux and Windows operating systems ; install, load,… more
    ManTech (10/14/25)
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  • Senior Linux System

    ManTech (Fort Meade, MD)
    Mantech seeks a motivated, career and customer-oriented ** Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you ... will support the implementation, troubleshooting, and maintenance of IT systems , as well as manage IT system ...planning. + Configure and manage Linux operating systems ; install and maintain OS software; implement system more
    ManTech (10/25/25)
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  • Senior Linux System

    GovCIO (Annapolis, MD)
    …Submit a referral to this job (https://careers-govcio.icims.com/jobs/6348/ senior - linux - system - administrator ... **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with... Linux System Administration, Configuration, and System Security + Advanced systems troubleshooting skills… more
    GovCIO (08/08/25)
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  • 337 - Senior Linux Systems

    ARSIEM (Annapolis Junction, MD)
    …on every client you work with. ARSIEM is looking for a motivated and experienced Linux System Administrator for a small, diverse team that provides ... end-to-end software, systems , and network engineering services to support Integrated Discovery...relying on corporate baselines, to support software developers, phased system upgrades, compliance, and improvements aimed at ensuring continued… more
    ARSIEM (10/30/25)
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  • Senior Systems Administrator

    CACI International (Fort Meade, MD)
    …10% Type of Travel: Local * * * **The Opportunity:** **CACI** is seeking a ** Senior Linux Systems Administrator ** to provide support for implementation, ... Senior Systems Administrator Job...manage primarily Linux /Unix (or other applicable) operating systems and installs/loads operating system software, troubleshoot,… more
    CACI International (10/30/25)
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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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  • Field Engineer/ Linux Systems

    Huntington Ingalls Industries (Columbia, MD)
    …during the interview process. Job Description Enlighten is looking for a Field Engineer/ Linux Systems Administrator to support operational systems ... well. + At least 9 years of experience in Linux Systems Administration with Bachelors in related...systems and applications. + Experience leveraging a ticketing system for support requests (JIRA, ServiceNow, etc.) + Must… more
    Huntington Ingalls Industries (08/08/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …5 + years of related experience **US Citizenship Required:** Yes **Job Description:** Senior Systems Administrator Own your opportunity to join our ... Systems Administrator or similar role + Strong experience with Linux and Windows-based systems administration. + Knowledge of cloud platforms (AWS,… more
    General Dynamics Information Technology (09/16/25)
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  • Senior Systems Administrator

    BAE Systems (Washington, DC)
    …BAE Systems is seeking a Senior ** Systems Administrator ** to join the Machine-assisted Analytic Rapid-repository System (MARS) Advanced Development ... and maintain the infrastructure that powers networks and operating systems such as UNIX, Linux , and Windows....be available based on position level and/or job specifics. ** Senior Systems Administrator ** **117757BR** EEO… more
    BAE Systems (10/29/25)
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  • Senior High Performance Computing (HPC)…

    BAE Systems (Annapolis Junction, MD)
    …level and/or job specifics. ** Senior High Performance Computing (HPC) Systems Administrator ** **115702BR** EEO Career Site Equal Opportunity Employer. ... **Job Description** At BAE Systems , we promote a strong, collaborative culture and...based IT enterprise in installation, configuration, and networking of Linux and Windows based platforms. + Oversee servers running… more
    BAE Systems (09/09/25)
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  • Senior System Administrator

    CACI International (Annapolis Junction, MD)
    Senior System Administrator Job...oversight across a range of IT platforms including UNIX, Linux , and Windows systems . The ideal candidate ... IT systems . We are seeking an accomplished System Administrator - Level 4 to lead...complex enterprise IT environments, with a focus on high-assurance systems . This senior -level position involves architecture support,… more
    CACI International (10/30/25)
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  • Senior System Administrator

    St. George Tanaq Corporation (Suitland, MD)
    Senior System Administrator -...Work both independently as well as in coordination with Systems administrators to maintain the smooth operation of a ... about us, visit https://tanaq.com/tanaq-technical-services. **About the Role** We are seeking a ** Senior System Administrator - Network Operation Center** to… more
    St. George Tanaq Corporation (08/15/25)
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  • (Mid. or Senior ) System

    Belay Technologies (Annapolis Junction, MD)
    …runner up in 2020 and a finalist in 2021! Belay Technologies is seeking a System Administrator to join our team. The selected individual will be responsible for ... for a large complex network environment with geographically distributed systems . The position entails supporting solutions for system...of relevant experience + Must have experience as a systems administrator providing direct support to end… more
    Belay Technologies (10/01/25)
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  • Senior Cloud System

    ManTech (Hanover, MD)
    ManTech seeks a motivated, career- and customer-oriented **Sr** **Cloud System Administrator ** to join our team in **Hanover, MD.** Our team delivers enterprise ... **Minimum Qualifications:** + 20+ years of experience as a Systems Administrator or Cloud Engineer supporting programs...Active Directory and networking + Proven experience as a System Administrator or Cloud Engineer with practical… more
    ManTech (09/10/25)
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  • Senior ServiceNow Systems

    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 14 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 (08/07/25)
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