• Applied Research Associates, Inc. (Warrendale, PA)
    …years of relevant experience, with at least five (5) years of experience in a senior Linux Systems Administrator role, preferably in a high-tech or regulated ... our compliance team to maintain our certification status + ** Network Management** : Configure and secure network ...at least five (5) years of experience in a senior Linux Systems Administrator role… more
    DirectEmployers Association (10/23/25)
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  • Infinity Systems Engineering (Alexandria, VA)
    …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 broad ... scope of responsibilities, including network infrastructure management (switch deployment & configuration) and system administration in a classified environment. The… more
    DirectEmployers Association (09/30/25)
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  • Applied Research Associates, Inc. (Herndon, VA)
    …Knowledge of container security best practices, including vulnerability scanning and network policies ** Senior DevOps Engineer Preferred Qualifications:** + An ... **Description** ARA is looking for a Senior DevOps Engineer with strong expertise in OpenShift...TS/SCI with CI Poly security clearance + OpenShift Certified Administrator (OCA) or Kubernetes certification + Experience with hybrid… more
    DirectEmployers Association (09/11/25)
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  • Tyto Athene (Ashburn, VA)
    …with a strong emphasis on Amazon Web Services (AWS). + Serve as a senior Splunk Administrator or Architect, responsible for the configuration, maintenance, and ... **Qualifications** **Required:** + Minimum 5 years' experience as a senior Splunk Administrator or Architect. + Strong...in enterprise IT environments as an applications or systems administrator . + Practical knowledge of Windows and Linux more
    DirectEmployers Association (11/01/25)
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  • Tris Pharma (Monmouth Junction, NJ)
    …in IT infrastructure including minimum 5 of those years in a senior engineering roleStrong knowledge of network architecture, protocols and technologies ... and IT strategiesProvide technical leadership and mentorship to team membersSupport Network Management by overseeing the design, implementation and support of… more
    HireLifeScience (10/28/25)
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  • Senior Systems Administrator

    Alaka'ina Foundation Family of Companies (Kauai County, HI)
    …The Alaka`ina Foundation Family of Companies (FOCs) is looking for a Senior Linux Systems Administrator Range Network . The position will support our ... Senior Systems Administrator ( Linux ) Location HI - Kaua'i Job Code 13492 # of openings 1 Apply Now… more
    Alaka'ina Foundation Family of Companies (10/23/25)
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  • Senior Linux Administrator

    General Dynamics Information Technology (Falls Church, VA)
    …best practices framework as the basis for IT Service Management (ITSM) model. **HOW A SENIOR LINUX ADMINISTRATOR WILL MAKE AN IMPACT:** + Provide system ... and usage charts, including CPU usage, disk usage and network uptime for the Linux Servers. +...as this position will require candidate to engage with senior military and government leadership. + Must be able… more
    General Dynamics Information Technology (08/09/25)
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  • Senior Systems Administrator (Unix/…

    TekSynap (Dahlgren, VA)
    …& Qualifications** TheTekSynap is seeking a **S** **enior S** **ystem** ** Administrator (Unix/ Linux ).** The Senior Systems Administrator ... This position provides advanced system administration and engineering support for Unix/ Linux environments within the Navy enterprise. The Senior Systems… more
    TekSynap (10/31/25)
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  • Senior Linux /Unix Systems…

    SMX (Dahlgren, VA)
    Senior Linux /Unix Systems Administrator (4419)at SMX(View all jobs) (https://www.smxtech.com/careers/) Dahlgren, VA SMX is looking for a highly motivated ... Senior Linux /Unix Administrator to join...Senior Linux /Unix Administrator to join our team in...and maintain Top Secret clearance + Networking protocols + Network security tools such as firewalls + Vulnerability management… more
    SMX (10/18/25)
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  • Senior Linux Systems…

    ManTech (Chantilly, VA)
    **MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA** This opportunity allows you to become ... solutions in support of critical government missions. As a ** Senior Linux Systems Administrator ,** you...problems, and collaborating with other teams (eg application development, network , etc.) to resolve problems across the organization +… more
    ManTech (08/30/25)
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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 **National Security Sector's (NSS) Cyber & ... us and make a difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where you'll provide crucial support for the… more
    Leidos (10/09/25)
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  • Unix/ Linux Administrator

    Link Solutions Inc (Sierra Vista, AZ)
    …for CMMI ML3 for Services and Development. Link Solutions Inc. is seeking a Unix/ Linux Administrator ( Senior -Level) to join our team in Sierra Vista, ... Citizen + Active DoD Security Clearance + Non-remote (relocation incentive available) The Unix/ Linux Administrator will provide services in support of the US… more
    Link Solutions Inc (10/28/25)
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  • Senior Linux System…

    GovCIO (Montgomery, AL)
    …referral to this job (https://careers-govcio.icims.com/jobs/6348/ senior - linux -system- administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) ... **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active...administration duties will be included in this role. + Senior -level RedHat Linux server administration experience, experience… more
    GovCIO (08/08/25)
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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 & ... how this program "Delivers Mission Success!" Seeking a motivated and experienced Linux System Administrator for a small, diverseteam that provides end-to-end… more
    Leidos (10/09/25)
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  • Senior Systems Administrator

    Mount Sinai Health System (New York, NY)
    …practices. + At least 6 years of experience in designing, administering and troubleshooting Linux and Windows systems, storage systems, network and VMs. + The ... data warehouse team and a research data services team. The **_Senior Systems Administrator /Engineer,_** as a member of the Scientific Computing and Data group, is… more
    Mount Sinai Health System (09/22/25)
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  • Senior Linux System…

    Mission Support and Test Services (North Las Vegas, NV)
    …is looking for a high-performing individual to join our team as a Linux Systems Administrator ( Senior Infrastructure Analyst). **Key Responsibilities** + ... and vCenter. + Troubleshoot and resolve complex technical issues related to Linux servers, network infrastructure, and virtualization environments. + Document… more
    Mission Support and Test Services (10/22/25)
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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 ... day-to-day operations and monitoring, and resolve issues related to client/server/storage/ network devices and mobile systems. + Escalate and communicate status… more
    ManTech (10/25/25)
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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, ... of IT systems. + Manage IT system infrastructure and processes related to client/server/storage/ network devices and mobile devices. + Perform Tier 1 (Help Desk) and… more
    ManTech (10/14/25)
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  • Sr. Linux /Unix Administrator

    S4 Inc. (Omaha, NE)
    …Job Listing Number: NE25002 LCAT: Senior Network and Computer Systems Administrator Overview: S4 Inc. has a Sr. Linux /Unix System Administrator ... is preferred: ITIL 4 Foundations; Red Hat Certified Systems Administrator ; or Linux Professional Institute Certification Linux Administrator ; or CompTIA … more
    S4 Inc. (10/08/25)
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  • 337 - Senior Linux Systems…

    ARSIEM (Annapolis Junction, MD)
    …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 Operations (IDO)....a large enclave comprised of various hardware, software, and network components to include server architecture, virtual machines, managed… more
    ARSIEM (10/30/25)
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