• Applied Research Associates, Inc. (Herndon, VA)
    …clusters + **Documentation** : Maintain thorough documentation of infrastructure, systems , and processes **Offer is contingent upon contract award.** **Senior ... Requirements:** + **Must be a US citizen with an active TS/SCI security clearance** + Bachelors degree in a...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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  • LINUX Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …of related experience **US Citizenship Required:** Yes **Job Description:** ** Linux Systems Administrator ** **- Active Top Secret Required** Seize your ... opportunity to make a personal impact as a ** Linux ** ** Systems Administrator ** with GDIT....DoD 8140 compliance required + **Security Clearance Level** : Active Top Secret + **Required Skills and Abilities:** Highly… more
    General Dynamics Information Technology (08/02/25)
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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 ... Develop and maintain backup and disaster recovery plans for Linux systems . + Patch Management: Manage the...clearance + 3+ years of directly relevant experience in Linux System Administrator . + Proficiency in managing… more
    Nightwing (10/08/25)
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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 ... large scale configuration management and deployment across Windows, MacOS, Linux /Unix, and other operating systems and virtual...- 5+ years of directly relevant experience as a Linux System Administrator . - 3+ years of… more
    BCMC (10/16/25)
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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 ... in support of critical government missions. As a **Senior Linux Systems Administrator ,** you will...with domain account management, particularly via Centrify, LDAP, and Active Directory + Strong shell scripting experience and experience… more
    ManTech (08/30/25)
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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) Cyber & ... difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where...and Virtualization + **Security Clearance** : Must have an active Top Secret/SCI with Polygraph cssrc conmd If you're… more
    Leidos (09/26/25)
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  • Principal Linux Systems

    Leidos (Columbia, MD)
    **Description** **Leidos** has a new and exciting opportunity for a **Principal Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber ... difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where...and Virtualization + **Security Clearance** : Must have an active Top Secret/SCI with Polygraph cssrc conmd Come break… more
    Leidos (10/10/25)
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  • Linux Systems Administrator

    CACI International (Reston, VA)
    Linux Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular ... a critical DoD system? Join our team as a Systems Administrator ! You will get to use...in system design, development, and production support of large applications/ systems . + Windows and Linux server system… more
    CACI International (10/18/25)
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  • Senior Linux Administrator

    General Dynamics Information Technology (Falls Church, VA)
    …framework as the basis for IT Service Management (ITSM) model. **HOW A SENIOR LINUX ADMINISTRATOR WILL MAKE AN IMPACT:** + Provide system administration support ... for Linux operating systems including installing software, applying...Level Requirements:** + Must have a minimum of an active Secret clearance at time of interview and candidate… more
    General Dynamics Information Technology (08/09/25)
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  • Senior Linux Administrator

    SAIC (Arlington, VA)
    …**Red Hat Senior Linux Administrator ** to operate and maintain the Linux operating systems within our environment. This position is based out of the ... daily system monitoring, security, server health, resources and log management of all Linux systems . + Experience with applying patches and building custom… more
    SAIC (10/08/25)
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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 ... large scale configuration management and deployment across Windows, MacOS, Linux /Unix, and other operating systems and virtual...- 5+ years of directly relevant experience as a Linux System Administrator . - 2+ years MacOS… more
    Nightwing (08/28/25)
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  • Senior Linux System Administrator

    GovCIO (Washington, DC)
    **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active Secret clearance to join an Operations team. This ... 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 (08/08/25)
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  • Fidelis Administrator - Active

    ENS Solutions (Reston, VA)
    …and configuration management. + Experience as a network administrator or systems engineer. + Experience in using Active Directory to manage Windows ... manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in...degree and 3+ years of experience as a system administrator + Active DoD 8570 IAT Level… more
    ENS Solutions (09/27/25)
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  • Cloud Systems Administrator IV

    Criterion Systems (Reston, VA)
    …we encourage Veterans to apply. Responsibilities We are seeking a mission-focusedCloud Systems Administrator IV to support and contribute to our government ... 1 and Tier 2 problem identification, diagnosis and resolution of problems. + Provision/harden Linux operating systems . + Other duties may include setting up … more
    Criterion Systems (09/17/25)
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  • Senior Systems Administrator

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

    Criterion Systems (Reston, VA)
    …and Tier 2 problem identification, diagnosis and resolution of problems. Provision/harden Linux operating systems . + Maintains smooth operation of multi-user ... Overview At Criterion Systems , we developed a different kind of business-a...or other IAT II/III level certification that is currently active + Linux (CentOS, RHEL, and/or Oracle).… more
    Criterion Systems (08/08/25)
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  • Senior Cloud Systems Administrator

    BAE Systems (Sterling, VA)
    **Job Description** We are looking for a highly skilled Senior Cloud Systems Administrator to join our visible technical program driving the Model Based ... be available based on position level and/or job specifics. **Senior Cloud Systems Administrator ** **115946BR** EEO Career Site Equal Opportunity Employer.… more
    BAE Systems (09/09/25)
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  • Systems Administrator

    BAE Systems (Sterling, VA)
    …and protect our freedom. BAE Systems is looking for a Senior Systems Administrator to provide comprehensive support to all aspects of system maintenance, ... Systems Administration & Operations + Administer and troubleshoot Linux and Windows servers in AWS GovCloud and manage...be available based on position level and/or job specifics. ** Systems Administrator ** **117073BR** EEO Career Site Equal… more
    BAE Systems (10/08/25)
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  • Systems Administrator Intern, Summer

    BAE Systems (Rockville, MD)
    …in the program. **The Opportunity** BAE Systems is seeking an ON-SITE Systems Administrator Intern for Summer 2026. Join our IT Operations Team within ... benefits, the employee assistance program, and business travel accident insurance. ** Systems Administrator Intern, Summer 2026** **116749BR** EEO Career Site… more
    BAE Systems (09/30/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Reston, VA)
    …of related experience **US Citizenship Required:** Yes **Job Description:** **Senior Systems Administrator ** Transform technology into opportunity as a Senior ... Systems Administrator with GDIT. A career in enterprise IT means...troubleshoots multiple VMware environments. + Provides Windows Server and Linux administration, maintenance, and troubleshooting. + Creates STIG compliant… more
    General Dynamics Information Technology (10/01/25)
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