• COLSA Corporation (Huntsville, AL)
    Join our team as a Linux Systems Administrator, where you will support and manage a diverse mix of workstations, servers, and high-performance computing (HPC) ... for a skilled professional with a solid foundation in Linux administration and a collaborative approach to...to 12 years of related experience + Active DoD Top Secret Clearance with SCI eligibility +… more
    DirectEmployers Association (10/02/25)
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  • Tyto Athene (Santa Barbara, CA)
    …part of a delivery pipeline to achieve Authority to Operate (ATO) + Provide system administration of Linux systems . + Maintain an inventory of hardware and ... support. **Qualifications** **Required:** + 3or more years of hands-on Systems Administration experience including Windows based computers,...+ Onsite support is required. **Clearance:** + Active DoD Top Secret or Top more
    DirectEmployers Association (12/06/25)
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  • AeroVironment (Centreville, VA)
    … + Available to respond to alarms and emergencies after hours + Final Top Secret Security Clearance **Other Qualifications & Desired Competencies** + Experience ... range in complexity and size to include multi-platform computing ( Linux , Windows, VMWare), virtual environments, and mobile systems...other legally protected status._ **ITAR** US Citizenship is required. Secret or Top Secret clearance,… more
    DirectEmployers Association (10/11/25)
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  • Tyto Athene (Ashburn, VA)
    …as an applications or systems administrator. + Practical knowledge of Windows and Linux systems administration . + Experience with Linux or Windows ... and heterogeneous systems . + Administer and optimize enterprise IT applications and systems in Windows and Linux environments. + This role ensures that all… more
    DirectEmployers Association (11/01/25)
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  • National Renewable Energy Laboratory (Golden, CO)
    …research applications outside of applications support by ITS. Small amounts of Windows, Linux , and network administration will be required to support operations ... Support and Recovery team to provide incident response, troubleshooting, administration , and operational support for ITS supported systems...and newer. + Ability to support a multitude of Linux desktop systems and troubleshoot and resolve… more
    DirectEmployers Association (11/12/25)
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  • Argonne National Laboratory (Lemont, IL)
    …granted by the US Department of Energy (DOE). It's functionally equivalent to a ** Top Secret clearance** , allowing access to information classified up to that ... racking, hardware, and software upgrades. + Experience with the administration of common Windows Server Domain Services such as...Veeam, or similar enterprise backup solutions. + Familiarity with Linux Server Operating Systems such as RHEL,… more
    DirectEmployers Association (11/22/25)
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  • MAXISIQ, Inc. (Hanover, MD)
    …defending our nation's digital frontlines in the civilian sector? We're seeking a seasoned Linux Admin /Test Engineer to join our elite team in Hanover, Maryland ... other program in this field. Mission Overview As a Linux Admin /Test Engineer on our frontline operational...III testing, troubleshooting, and analyzing critical DoD Cyber operational systems . This isn't just another job a€" it's a… more
    job goal (12/11/25)
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  • COLSA Corporation (Shalimar, FL)
    …Compliance certifications within 6 months Preferred Skills and Qualifications + Active DoD Top Secret clearance highly desired + DoD 8140 Compliance: DoD cyber ... Execute hands-on testing which includes significant technical skills with multiple operating systems . (Windows, Linux , Unix, IOS (network)) as well as… more
    DirectEmployers Association (12/06/25)
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  • The Computer Merchant, LTD. (Dedham, MA)
    …- Secret to work from their Dedham, MA facility. As an Advanced Systems Administration Specialist, you'll serve as a front-line interface to users with ... and virtual servers performance using monitoring tools. Roles & Responsibilities : A Systems Admin Specialist is responsible for maintaining and supporting the… more
    job goal (12/08/25)
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  • AeroVironment (Manassas, VA)
    …and make recommendations. **Other Qualifications & Desired Competencies** + Top Secret clearance is preferred. + Knowledge of Linux configurations and ... security, implementation, and documentation. + Knowledge of Windows based operating systems , Linux , MacOS, networking technologies (Cisco, Palo Alto, etc.).… more
    DirectEmployers Association (12/02/25)
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  • COLSA Corporation (Huntsville, AL)
    …professional experience. + Minimum of 8 years related experience + Active DoD Top Secret Clearance with SCI eligibility; US Citizenship required + Must ... technical lead for a diverse infrastructure environment. The role spans Windows systems , Nutanix virtualization, Linux (RHEL), and enterprise storage. The… more
    DirectEmployers Association (09/21/25)
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  • AeroVironment (Montgomery, AL)
    …orientation, gender identity or other legally protected status._ **ITAR** US Citizenship is required. Secret or Top Secret clearance, or the ability obtain a ... large-scale security initiatives and architectural decisions + Expert knowledge of Windows, Linux , and MacOS operating systems and enterprise networking concepts… more
    DirectEmployers Association (11/01/25)
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  • National Renewable Energy Laboratory (Golden, CO)
    …and influence long-term technical direction. **Network Engineer III** + Experience in network, systems , or database administration across Linux and Windows ... and influence long-term technical direction. **Network Engineer III** + Experience in network, systems , or database administration across Linux and Windows… more
    DirectEmployers Association (11/25/25)
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  • Applied Research Solutions (Dayton, OH)
    …years demonstrated performance in related technology. Minimum Security Clearance Required + Top Secret w/ SCI eligibility Additional or Preferred Qualifications ... and personalized attention from ARS Senior Managers.?? **Responsibilities:** + Support a Linux & Windows AirGapped environment. + Troubleshoot systems as needed,… more
    DirectEmployers Association (12/10/25)
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  • Infinity Systems Engineering (Colorado Springs, CO)
    …are running efficiently and securely. Key Responsibilities: System Maintenance and Administration : + Install, configure, and maintain operating systems , ... WE ARE MORE - now, come be more with us! Job Summary: The Systems Administrator is responsible for the maintenance, configuration, and reliable operation of computer… more
    DirectEmployers Association (12/05/25)
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  • Infinity Systems Engineering (Alexandria, VA)
    …+ Configure, manage, secure, and troubleshoot Juniper and Cisco switches. + Perform systems administration on Windows and Linux platforms (updates, security, ... initiative, and experience supporting a mix of network and systems engineering and administration tasks. Key Responsibilities:...configuration (Cisco experience is a plus) + Proficient in Linux and Windows system administration + Active… more
    DirectEmployers Association (12/03/25)
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  • AeroVironment (Petaluma, CA)
    …degree preferred + GRC experience + Defense Industrial Base knowledge + Top Secret clearance is preferred. + Knowledge of Linux configurations and security + ... participating in the design, development, and implementation of information systems to ensure these systems include security...required to travel within the Continental US **Clearance Level** Secret The salary range for this role is: $71,852… more
    DirectEmployers Association (12/02/25)
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  • AeroVironment (Centreville, VA)
    …orientation, gender identity or other legally protected status._ **ITAR** US Citizenship is required. Secret or Top Secret clearance, or the ability obtain a ... This specific role also involves on-site support for experimentation and fielded systems requiring a significant amount of extended travel, both domestic and… more
    DirectEmployers Association (12/02/25)
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  • Sr Principal Linux Systems

    Northrop Grumman (Melbourne, FL)
    …performing day-to-day administrative tasks related to managing Red Hat Linux systems **Preferred Qualifications** : + Bachelor's degree in Information ... Northrop Grumman Classified Solutions team is seeking an senior ** Linux Systems Administrator** to join its dynamic...Technology + Active Secret , Top Secret , TS more
    Northrop Grumman (11/25/25)
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  • LINUX Systems Administrator - Active…

    General Dynamics Information Technology (Washington, DC)
    …of related experience **US Citizenship Required:** Yes **Job Description:** ** Linux Systems Administrator** **- Active Top Secret Required** Seize your ... Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job...** Systems Administrator** with GDIT. A career in systems administration means connecting and enhancing the… more
    General Dynamics Information Technology (12/05/25)
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