• 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)
    - Save Job - Related Jobs - Block Source
  • 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)
    - Save Job - Related Jobs - Block Source
  • 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)
    - Save Job - Related Jobs - Block Source
  • 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)
    - Save Job - Related Jobs - Block Source
  • 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)
    - Save Job - Related Jobs - Block Source
  • 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)
    - Save Job - Related Jobs - Block Source
  • 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)
    - Save Job - Related Jobs - Block Source
  • 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)
    - Save Job - Related Jobs - Block Source
  • AeroVironment (Huntsville, 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)
    - Save Job - Related Jobs - Block Source
  • 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)
    - Save Job - Related Jobs - Block Source
  • 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)
    - Save Job - Related Jobs - Block Source
  • 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)
    - Save Job - Related Jobs - Block Source
  • 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)
    - Save Job - Related Jobs - Block Source
  • AeroVironment (Minneapolis, MN)
    …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)
    - Save Job - Related Jobs - Block Source
  • AeroVironment (Arlington, VA)
    …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)
    - Save Job - Related Jobs - Block Source
  • 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)
    - Save Job - Related Jobs - Block Source
  • 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 to ... Develop and maintain backup and disaster recovery plans for Linux systems . + Patch Management: Manage the...Skills:** + US Citizenship + Must have an active Secret clearance and obtain a TS /SCI clearance… more
    Nightwing (11/18/25)
    - Save Job - Related Jobs - Block Source
  • 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 (RHEL) ... and equipment in the lab environment. - Providing ongoing systems administration , technical support, upgrades, patching and...- US Citizenship - Must have an active DoD Secret clearance, TS /SCI clearance is preferred. -… more
    BCMC (10/16/25)
    - Save Job - Related Jobs - Block Source
  • Linux Systems Administrator

    CACI International (Linthicum, MD)
    Linux Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee ... Linux System Administrator!** Are you passionate about Linux systems and eager to make a...with Polygraph. + **Proven Experience:** 3 years of hands-on Linux system administration experience. + **Versatile Knowledge:**… more
    CACI International (10/18/25)
    - Save Job - Related Jobs - Block Source
  • Principal Linux Systems

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