• Sr . Linux / Windows

    Lockheed Martin (King Of Prussia, PA)
    Windows system administration, including installing, patching, troubleshooting and hardening Linux and Windows operating systems \(both bare\-metal and ... have an active Top Secret Clearance **Desired Skills:** * Windows and Linux OS patching/security hardening in...be required within 6 months of start\) * CompTIA Linux \+ or Red Hat Certified Systems Administrator… more
    Lockheed Martin (11/14/25)
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  • Senior Systems Administrator…

    Mount Sinai Health System (New York, NY)
    …researchers at Mount Sinai. The Administrator is the principal technology expert for Windows and Linux systems , and help support high-performance computing ... + At least 6 years of experience in designing, administering and troubleshooting Linux and Windows systems , storage systems , network and VMs. + The… more
    Mount Sinai Health System (09/22/25)
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  • Jr./Mid-Level Networking Systems

    Belay Technologies (Annapolis Junction, MD)
    …utilizes complex equipment/ systems (ex. Network Switches, Routers, LANs, & cabling, Windows / Linux operating systems , VMware, etc.). + Must have ... experience installing, updating, and upgrading Linux Operating Systems (OS). + Must have...utilities used to create and configure network connections in Linux OS. + Must have experience implementing Windows more
    Belay Technologies (11/07/25)
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  • (Mid. or Senior ) Networking Systems

    Belay Technologies (Annapolis Junction, MD)
    …utilizes complex equipment/ systems (ex. Network Switches, Routers, LANs, & cabling, Windows / Linux operating systems , VMware, etc.). + Must have ... finalist in 2021! Belay Technologies is seeking a Network Systems Administrator ( Windows ) to join our team....respond to hardware and software incidents and work with senior system administrators, at times remotely from other locations.… more
    Belay Technologies (10/01/25)
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  • Senior Systems Administrator…

    ManTech (Fairmont, WV)
    **MANTECH** seeks a motivated and customer-oriented ** Senior Systems Administrator - Windows / Linux Dual-Stack Specialist** to join our team in **Boulder, ... experience in Systems Administration, with demonstrated expertise in both Windows Server and Enterprise Linux environments. + Expert-level, hands-on… more
    ManTech (11/05/25)
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  • System Administrator- Linux

    Leidos (Annapolis Junction, MD)
    …utilizes complex equipment/ systems (ex. Network Switches, Routers, LANs, & cabling, Windows / Linux operating systems , VMware, etc.). + Must have ... experience installing, updating, and upgrading Linux Operating Systems (OS). + Must have...utilities used to create and configure network connections in Linux OS. + Must have experience implementing Windows more
    Leidos (11/19/25)
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  • Senior Linux Kernel and Driver…

    Microsoft Corporation (Hillsboro, OR)
    …images adding SoC validation debug hooks, drivers, and various capabilities into them ( Linux and/or Windows operating systems ). + Understanding system level ... optimize the Cloud infrastructure. We are looking for a ** Senior Linux Kernel and Driver Developer** to...and interrupt handling. + Proficiency with Git, compilers, and Linux build systems **Other Requirements:** Ability to… more
    Microsoft Corporation (12/06/25)
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  • Senior Principal Linux Administrator

    RTX Corporation (El Segundo, CA)
    …and license configuration; and workstation support. + Experience with troubleshooting, patching, and support Linux , ESXi and Windows Systems . + Work as a ... and maintenance of systems hardware and software related to a Linux / Windows infrastructure for classified programs. Duties include, but are not limited… more
    RTX Corporation (09/26/25)
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  • Senior Linux System Administrator

    ManTech (Fort Meade, MD)
    …resource utilization; perform capacity analysis and system planning. + Configure and manage Linux and Windows operating systems ; install, load, and enhance ... ManTech seeks a ** Senior Linux System Administrator** to join...systems administration or IT operations. + Experience with Linux , including installation, configuration, troubleshooting, and maintenance. **Security Clearance… more
    ManTech (10/14/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …teams. WHAT YOU WILL DO: Duties and Responsibilities: + Enterprise Authorization: Integrate Linux Systems into a primary Windows environment (workstations & ... of related experience **US Citizenship Required:** Yes **Job Description:** Senior Systems Administrator Own your opportunity to...and Single Sign On. + Enterprise Provisioning: Configure new Linux and Windows systems for… more
    General Dynamics Information Technology (09/16/25)
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  • Sr . Principal Cyber Systems

    Northrop Grumman (Redondo Beach, CA)
    …Firewalls, CISCO IOS) + Experienced in the implementation of CMMC/DFARS/RMF/DOD Security Controls on Linux and Windows operating systems (ie Windows SHB ... they're making history. Northrop Grumman has an opening for ** Sr . Principal Cyber Systems Engineer** to join...CISCO network switches + Implementation of Security controls on Windows and Linux Servers and workstations +… more
    Northrop Grumman (11/26/25)
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  • Senior Systems Engineer

    Trace Systems Inc (WA)
    … and network architectures in a large-scale client/server and web environment, including Linux , Windows , VMWare, NetApp systems . + Lead optimization of ... Job Overview Job Title: Senior Systems Engineer Job Location: Washington,...large-scale client/server and web environment, and that includes either Linux , Windows or VMWare systems more
    Trace Systems Inc (10/30/25)
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  • Software Systems Integrator

    L3Harris (Greenville, TX)
    …TX and Rockwall,TX Schedule: 9/80 Job Description: L3Harris is seeking a hybrid Windows / Linux Systems Administrator to support Mission System integration in ... resolution. Essential Functions: + Integrate with a team of multidiscipline, multileveled Systems Administrators supporting Linux , Windows , and Network… more
    L3Harris (12/04/25)
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  • Systems Integrator

    Leidos (Eagan, MN)
    …Design and implement lab environment capacity and security requirements, including automation for Linux and Windows systems . + Develop and oversee ... Ansible script development, VMWare ESXi administration, Linux /AIX Administration, and Windows / Windows Server systems . + Administration and implementation… more
    Leidos (11/09/25)
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  • Senior Systems Engineer

    Indigo IT, LLC (Fort Meade, MD)
    …solutions + Strong understanding of system design, architecture, networking, virtualization, Linux / Windows systems , and cloud technologies + Demonstrated ... Senior Systems Engineer Ft. Meade, MD... Senior Systems Engineer Ft. Meade, MD SUMMARY: Founded in...for employees, we reward thought leadership with bonuses and recognition for publishing, speaking, and innovative thought leadership in… more
    Indigo IT, LLC (11/22/25)
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  • Sr . Systems Administrator

    Subaru of America (Van Buren Twp, MI)
    …management and analytical skills. MAJOR RESPONSIBILITIES + Designs, implements, maintains, and monitors Linux and Windows operating systems . + Designs and ... years of experience in a Systems Administrator role supporting Linux and Windows environments and networking + At least 2-4 years of enterprise networking… more
    Subaru of America (10/10/25)
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  • Sr Systems Engineer, Controls Fleet,…

    Amazon (Denver, CO)
    …have strong experience in Cyber Security, Systems Engineering and DevOps for Windows and Linux systems . Hands-on experience with automation and scripting ... deadline: Jan 24, 2026 Are you experienced in managing Windows , Linux , and Cloud systems ...are seeking a passionate and motivated Sr . Systems Engineer to join our team of Windows more
    Amazon (11/09/25)
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  • Senior Specialist, Information Security…

    L3Harris (Palm Bay, FL)
    …+ Design, implement, and manage security controls and configurations for both Linux and Windows systems , including system hardening, vulnerability ... domains in the interest of national security. Job Title: ​ Senior Specialist, Info Security Sys Engineering Job Code: 30719...GOTS, and FOSS. + Configure and manage logging for Linux and Windows systems , ensuring… more
    L3Harris (11/01/25)
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  • DevSecOps Engineer Sr - GMD Weapons…

    Lockheed Martin (Huntsville, AL)
    …a DOD 8140 IAT Level II certification \(ex: Security \+ CE\) * Strong systems administrator experience, specifically in Windows / Linux Operating Systems ... Bash, Ruby, Shell, Scripts\)\. * Programming and scripting experience in a Windows environment \(PowerShell, etc\.\) * Experience with PaaS \(Platform as a Service\)… more
    Lockheed Martin (11/22/25)
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  • Information Systems Analyst, Stf…

    Lockheed Martin (Littleton, CO)
    Windows environments, including Active Directory and Group Policy * Experience with Windows / Linux administration or NetApp storage systems * Experience ... Enterprise Operations' Enterprise Business & Digital Transformation \(EBDT\) organization** Windows System Administrator Windows System Administrator Job… more
    Lockheed Martin (12/04/25)
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