• COLSA Corporation (Huntsville, AL)
    Join our team as a Linux Systems Administrator , where...to 12 years of related experience + Active DoD Top Secret Clearance with SCI eligibility + ... maintain program accesses as required + Strong experience with Linux system administration. + Ability to troubleshoot...+ Virtualization experience with VMWare or Nutanix. + Active TS //SCI clearance with a current CI Scope Polygraph. Applicant… more
    DirectEmployers Association (10/02/25)
    - Save Job - Related Jobs - Block Source
  • Tyto Athene (Santa Barbara, CA)
    **Description** Tyto Athene is searching for a ** Systems Administrator /Information System Security Officer** to join our CA team. **Responsibilities:** + ... pipeline to achieve Authority to Operate (ATO) + Provide system administration of Linux systems ....+ Onsite support is required. **Clearance:** + Active DoD Top Secret or Top more
    DirectEmployers Association (12/06/25)
    - Save Job - Related Jobs - Block Source
  • Infinity Systems Engineering (Colorado Springs, CO)
    …WE ARE MORE - now, come be more with us! Job Summary: The Systems Administrator is responsible for the maintenance, configuration, and reliable operation of ... system performance and security, and providing technical support to internal users. The Systems Administrator will work closely with the IT team to ensure all… more
    DirectEmployers Association (12/05/25)
    - Save Job - Related Jobs - Block Source
  • Argonne National Laboratory (Lemont, IL)
    Argonne has an opportunity to serve as the System Administrator of the classified National Security Systems (NSS) for the Security Programs Facility (SPF). ... Department of Energy (DOE). It's functionally equivalent to a ** Top Secret clearance** , allowing access to...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 (Huntsville, AL)
    …professional experience. + Minimum of 8 years related experience + Active DoD Top Secret Clearance with SCI eligibility; US Citizenship required + Must ... higher. + Microsoft Certifications (MCSA/MCSE, AZ-104, etc.). + Red Hat Certified System Administrator (RHCSA) or Engineer (RHCE). + Experience with automation… more
    DirectEmployers Association (09/21/25)
    - Save Job - Related Jobs - Block Source
  • Tyto Athene (Ashburn, VA)
    …Strong experience in enterprise IT environments as an applications or systems administrator . + Practical knowledge of Windows and Linux systems ... . + Administer and optimize enterprise IT applications and systems in Windows and Linux environments. +...Web Services (AWS). + Serve as a senior Splunk Administrator or Architect, responsible for the configuration, maintenance, and… more
    DirectEmployers Association (11/01/25)
    - Save Job - Related Jobs - Block Source
  • 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 (12/03/25)
    - Save Job - Related Jobs - Block Source
  • 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 ... Senior Systems Administrator ( Linux ) Location HI...AND CLEARANCE: + Must be a US Citizen + Top Secret security clearance is required with T5… more
    Alaka'ina Foundation Family of Companies (11/20/25)
    - Save Job - Related Jobs - Block Source
  • System Administrator - Linux

    The Metamorphosis Group (Chantilly, VA)
    System Administrator - LINUX - TS /SCI FSP REQUIRED Chantilly, VA Apply Now Job Description The Metamorphosis Group, Inc, TMG, has an immediate opening ... for a Linux System Administrator , who shall... monitoring. MUST BE US CITIZEN MUST HAVE ACTIVE TS /SCI with FSP US Veterans Preferred **ABSOLUTELY NO THRID… more
    The Metamorphosis Group (12/10/25)
    - Save Job - Related Jobs - Block Source
  • Systems Administrator (Unix/…

    EPS Corporation (Dahlgren, VA)
    Systems Administrator (Unix/ Linux ) - (759) Share this job as a link in your status update to LinkedIn. Job Title Systems Administrator (Unix/ Linux ... Technology Job Description EPS Corporation is seeking a highly skilledSenior Systems Administrator (Unix/ Linux )to support enterprise-level networks and… more
    EPS Corporation (11/13/25)
    - Save Job - Related Jobs - Block Source
  • Senior Linux /Unix Administrator

    S4 Inc. (Omaha, NE)
    Administrator ; or CompTIA Linux +; or Oracle Certified Professional Oracle Linux System Administrator ; or Red Hat Certified Engineer; or Oracle ... of the following certifications is preferred: ITIL 4 Foundations; Red Hat Certified Systems Administrator ; or Linux Professional Institute Certification … more
    S4 Inc. (10/08/25)
    - Save Job - Related Jobs - Block Source
  • Senior Systems Administrator

    Amentum (Waimea, HI)
    …required + Linux + Linux + Red Hat Certified System Administrator (RHCSA) **Security Clearance** Top Secret security clearance is required with T5 ... Amentum is seeking a highly experienced Senior Linux System Administrator to...(DoD) environment. This role requires deep technical expertise in Linux systems , leadership in secure system more
    Amentum (09/24/25)
    - Save Job - Related Jobs - Block Source
  • Systems Administrator ( Linux

    RTX Corporation (Mckinney, TX)
    …intelligent solutions for the global aerospace and defense industry. We are currently seeking a Linux Systems Administrator that will be working onsite in a ... collaborative, multi-platform and multi-disciplined environment. The Systems Administrator is required to have an active secret...start date. **Qualifications We Prefer:** + An active DoD Top Secret clearance + Scanning using tools… more
    RTX Corporation (12/02/25)
    - Save Job - Related Jobs - Block Source
  • Principal Linux Administrator

    RTX Corporation (Mckinney, TX)
    …hardware, operating systems , and software. + Perform software upgrades, patching, and system maintenance on Linux systems . + Troubleshoot issues and ... Services** team: **Role Overview:** RTX is seeking a Principal Linux Administrator to support a highly virtualized... system maintenance, installations, upgrades, and backups on Linux systems . + Team-oriented with strong collaboration… more
    RTX Corporation (11/19/25)
    - Save Job - Related Jobs - Block Source
  • Linux Administrator

    CACI International (Chantilly, VA)
    …(IAM) and integration with Linux systems . * Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) certification. * ITIL, ... Linux Administrator Job Category: Information Technology...with RMF (Risk Management Framework). Required Qualifications * Active Top Secret clearance (SCI eligibility strongly preferred).… more
    CACI International (11/13/25)
    - Save Job - Related Jobs - Block Source
  • Quality Assurance Linux

    Assertive Professionals (Hanover, MD)
    …in the resolution process. Configures and manages LINUX operating systems and installs/loads operating system software, troubleshoots, maintains integrity ... Quality Assurance Linux Administrator About the Organization Established...system and installs Required Experience and Qualifications: + TS /SCI with aPolygraph + Nine (9) years experience in… more
    Assertive Professionals (09/25/25)
    - Save Job - Related Jobs - Block Source
  • Linux Administrator , Senior

    Amentum (Hanover, MD)
    …in the resolution process. Configures and manages Linux operating systems and installs/loads operating system software, troubleshoots, maintains integrity ... If so, look no further. Amentum is seeking a ** Linux Administrator , Senior** to join our team...and configures network components. **Requirements:** * Must have active Top - Secret clearance with SCI and Poly *… more
    Amentum (11/21/25)
    - Save Job - Related Jobs - Block Source
  • Linux Administrator

    SMX (Patuxent River, MD)
    Linux Administrator (4874)at SMX(View all jobs) (https://www.smxtech.com/careers/) Patuxent River, MD SMX is looking for a highly motivated Intermediate Linux ... + Deploying and managing all assigned lab devices **Required Skills/Experience** + Clearance Required: Top Secret + Secret required to start + 3+ years… more
    SMX (12/07/25)
    - Save Job - Related Jobs - Block Source
  • Linux Administrator - ACAS

    CACI International (Springfield, VA)
    Linux Administrator - ACAS Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular ... the NGA mission. In this role, we're seeking a ** Linux Administrator - ACAS** who could potentially...vendor updates are received **You'll Bring These Qualifications** + Top Secret /SCI clearance (current), with the ability… more
    CACI International (11/10/25)
    - Save Job - Related Jobs - Block Source
  • Senior Principal Linux Administrator

    RTX Corporation (El Segundo, CA)
    …only US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Top Secret At Raytheon, the foundation of everything we do is ... You Will Do** + We are seeking an experienced Linux Administrator that will be working in...years experience. + Active and transferable US government issued Top Secret security clearance is required prior… more
    RTX Corporation (09/26/25)
    - Save Job - Related Jobs - Block Source