• 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 ... worldwide to support the NGA mission. In this role, we're seeking a ** Linux Administrator - ACAS ** who could potentially be located in either **Springfield,… more
    CACI International (11/10/25)
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  • Assured Compliance Assessment Solution…

    FGS, LLC (Suitland, MD)
    …and troubleshooting issues + Five years of experience administering Red Hat Enterprise Linux , the ACAS host operating system, to include: + Building, patching, ... Assured Compliance Assessment Solution ( ACAS ) Senior AdministratorSuitland, MD **Requires US Citizenship Yes** **Employment Term and Type: Regular, Full Time**… more
    FGS, LLC (11/13/25)
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  • Senior Linux Systems Administrator

    The Boeing Company (Fairfax, VA)
    …the team in **Herndon, VA; Fairfax, VA;** or **Chantilly, VA** . As a Senior Linux Administrator , you will play a crucial role in maintaining and optimizing our ... Linux -based infrastructure, ensuring the stability, security and efficiency of...+ Experience with security and vulnerability scanning tools (eg, ACAS /Nessus, STIG's, SCC) + Experience maintaining enterprise-wide storage and… more
    The Boeing Company (11/19/25)
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  • Senior Systems Administrator ( Linux

    Amentum (Waimea, HI)
    Amentum is seeking a highly experienced Senior Linux System Administrator to oversee and manage enterprise-level Linux infrastructure in support of US Navy ... hardening, patching, and vulnerability remediation using tools such as ACAS , ESS, and SCAP. + Develop and maintain PowerShell...following OS Certifications required + Linux + Linux + Red Hat Certified System Administrator (RHCSA)… more
    Amentum (09/24/25)
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  • Senior Linux Systems Administrator

    General Dynamics Information Technology (Livermore, CA)
    …$10K Sign-on bonus **Job Summary:** We are seeking a highly skilled Senior Linux Systems Administrator . The role involves performing in-depth analysis and ... Required:** None **Job Family:** IT Infrastructure and Operations **Skills:** Linux ,Microsoft Server Operating Systems,Microsoft Windows Environment **Certifications:** Security+, CE… more
    General Dynamics Information Technology (11/04/25)
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  • Linux Systems Administrator - Secret…

    Insight Global (Huntsville, AL)
    Job Description An employer is looking for a Secret Cleared Linux Systems Administrator in the Huntsville, AL area. This resource will work closely with the ... software factory and DevSecOps team to ensure various linux platforms are developed and operational. We are a company committed to creating diverse and inclusive… more
    Insight Global (11/04/25)
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  • Linux /Windows Senior Systems…

    Lockheed Martin (San Diego, CA)
    …Configuration, fine tuning, and maintenance of security tools such as Nessus, ACAS , Splunk, etc\. * Setting up/configuring new users * Installation and configuration ... Network/System Administration \- Experience with server and desktop management of Linux and Windows environments \- Familiar with package deployment, imaging, and… more
    Lockheed Martin (10/17/25)
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  • Senior Network Systems Administrator - PDA

    General Dynamics Information Technology (Fort Bliss, TX)
    …and Abilities:** + Must have administrative knowledge of Microsoft Server 2019, Red hat Linux , Windows 11, SQLEXPRESS, ESS, ACAS , and Microsoft Hyper Visor. + ... experience **US Citizenship Required:** Yes **Job Description:** Senior Network Systems Administrator - PDA GDIT is seeking highly experienced and qualified Senior… more
    General Dynamics Information Technology (09/27/25)
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  • Linux Systems Admin - GMD Weapons Systems…

    Lockheed Martin (Huntsville, AL)
    …launches the intercepting missiles to negate the threat\. **The Work** The Linux System Admin maintains smooth operation of multi\-user computer systems, including ... coordination with network administrators\. Duties may include setting up administrator and service accounts, maintaining system documentation, tuning system… more
    Lockheed Martin (11/09/25)
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  • Systems Administrator (Compliance) - TS/SCI…

    NANA Regional Corporation (Honolulu, HI)
    …) administration. + Demonstrated experience of strong analytical and problem-solving skills. + ACAS administrator certification required in the first 60 days of ... Akima Systems Engineering (ASE) is looking for a Systems Administrator (Compliance) to work in Honolulu, HI. The Compliance Administrator plays a pivotal role in… more
    NANA Regional Corporation (11/11/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …a Systems Administrator or similar role + Strong experience with Linux and Windows-based systems administration. + Knowledge of cloud platforms (AWS, Azure, ... Required:** None **Job Family:** IT Infrastructure and Operations **Skills:** Linux ,Microsoft Windows,System Administration **Experience:** 5 + years of related… more
    General Dynamics Information Technology (09/16/25)
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  • Information Assurance Administrator

    Leidos (St. Petersburg, FL)
    …deliver smarter, technology-forward solutions. We are seeking an **Information Assurance Administrator ** to support our Defense Systems Sector. In this role, you'll ... and ensure mission readiness. **Primary Responsibilities** + Administer Windows and Linux systems + Build/maintain Linux /Windows workstations and servers to… more
    Leidos (11/11/25)
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  • Information Systems Security Administrator

    Huntington Ingalls Industries (Honolulu, HI)
    …Who We Are HII-Mission Technologies is seeking a Information Systems Security Administrator at our Honolulu, Hawaii location. The Information Systems Security ... Administrator (ISSA) is responsible for the implementation, monitoring, and...and validate Security Technical Implementation Guides (STIGs) on Windows, Linux , and virtualization platforms + Conduct system vulnerability scans,… more
    Huntington Ingalls Industries (11/14/25)
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  • Splunk Administrator Principal

    SAIC (New Orleans, LA)
    **Description** SAIC is seeking a **Splunk Administrator ** to support our customer site in **North Charleston, SC** or **New Orleans, LA** . The Splunk ... Administrator will support the Cloud CITI Splunk Team under...and integrates with enterprise tools including ServiceNow, eMASS, Tenable ACAS , Trellix ESS, SolarWinds, and EvaluateSTIG. The candidate will… more
    SAIC (11/04/25)
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  • Database Administrator III

    RTX Corporation (Chesapeake, VA)
    …ATO requirements) + To provide backup support to SIPRNet Red Hat Enterprise Linux (RHEL) Systems Administrator for day-to-day Global Command and Control ... System-Joint (GCCS-J) maintenance and Assured Compliance Assessment Solution ( ACAS ) servers maintenance **Qualifications You Must Have:** + DoD 8570 Workforce IAT… more
    RTX Corporation (10/15/25)
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  • Senior Sys Administrator ATO Sustainment

    SAIC (Grand Forks, ND)
    **Description** SAIC has an immediate need for a BMC3 **Systems Administrator Analyst** with Linux full stack development experience. We are looking for an ... more experience; Master's and 2 years related experience. + Experience working in a Linux environment. + Experience in a Systems Administrator role with Windows.… more
    SAIC (11/15/25)
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  • Cyber Administrator

    CAE USA INC (Arlington, TX)
    …advancement and having fun! Summary We are seeking a mission-focused System Administrator to support IT operations and cybersecurity readiness in a defense ... candidate will demonstrate proficiency in both Microsoft Windows and Linux systems administration, including hardening, deployment, configuration, maintenance, and… more
    CAE USA INC (10/23/25)
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  • NCIS Cyber Systems Administrator - SecOps…

    General Dynamics Information Technology (Quantico, VA)
    …+ **US Citizenship required** **WHAT WE'D LOVE FOR YOU TO HAVE:** + ACAS Management + LINUX Systems Administration Experience (SPLUNK) + Forescout Experience ... Yes **Job Description:** Transform technology into opportunity as a **Cyber Systems Administrator - SecOps** with GDIT. A career in enterprise IT means connecting… more
    General Dynamics Information Technology (08/28/25)
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  • Systems Administrator II - Generalist…

    V2X (Springfield, VA)
    …integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - Cross Domain - active TS/SCI clearance to ... to obtain and maintain a Counterintelligence (CI) Polygraph. The Senior Systems Administrator II Cross Domain supports the information technology (IT) Operations and… more
    V2X (11/14/25)
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  • Systems Administrator

    ISYS Technologies (Schriever AFB, CO)
    …initiatives of our government customers. I2X Technologies is seeking a Systems Administrator to support ongoing activities for a customer in Colorado Springs, CO ... + Responsible for administration and maintenance of Red Hat Linux servers + Install and configure Red Hat ...security policy, Risk Management Framework (RMF) + Set up administrator and service accounts + Maintain system documentation +… more
    ISYS Technologies (10/22/25)
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