• 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) ... clusters using Bright, Slurm, and/or xCAT. + Strong networking experience in Linux environments. + Cross-OS administration experience with Windows . +… more
    DirectEmployers Association (10/02/25)
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  • NuAxis Innovations (Raleigh, NC)
    …incident and deployment support of multiple server operating systems, including Unix, Linux , and Windows . This includes on-site and remote administration, user ... **Middleware Administrator ** Location **Raleigh, NC** \# of openings **1**...OpenShift, RedHat 3scale, Ansible, Google Cloud Platform, Microsoft Azure, Linux shell scripting, Microsoft PowerShell, JYTHON, AppDynamics, Zabbix, SolarWinds,… more
    DirectEmployers Association (11/27/25)
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  • Applied Research Associates, Inc. (Warrendale, PA)
    Administrator ** to join our team. This successful person will manage our Linux -based infrastructure and our Windows -11 developer fleet using WSL for Linux ... least five (5) years of experience in a senior Linux Systems Administrator role, preferably in a...particularly Ubuntu / Debian distributions + Strong experience with Windows Subsystem for Linux (WSL + Proficiency… more
    DirectEmployers Association (10/23/25)
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  • MCL Systems Limited (Manassas, VA)
    …system, database infrastructure. Our infrastructure is a multi-site network cluster of Windows , Linux servers, SQL Server databases, and other supporting network ... System, Network, and Database Administrator Our Company MCL Systems Limited ( MCL...Systems Center (SCCM, SCVMM, SCOM) - PowerShell Programming - Windows Servers, Virtual Desktops Linux servers, Microsoft… more
    job goal (12/08/25)
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  • VSolvit LLC (Ventura, CA)
    …Provide database and system administration across other business systems in a mixed Linux / Windows server environment Basic Qualifications: Bachelor's degree in ... LLC is seeking an experienced IBM Maximo / MAS administrator to join our dynamic and growing team supporting...Mobile Experience Maximo certifications are a plus (eg certified administrator ) C ompany Summary: Join the VSolvit Team! Founded… more
    job goal (12/05/25)
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  • Infinity Systems Engineering (Colorado Springs, CO)
    …Policy (FApolicy) setup. + Experience or familiarity with Red Hat Enterprise Linux integration with Windows authentication services (Active Directory). + ... 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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  • Tyto Athene (Santa Barbara, CA)
    …to join our CA team. **Responsibilities:** + Provide system administration of Windows -based computers, networks, and server administration, Linux system and ... + 3or more years of hands-on Systems Administration experience including Windows based computers, network, system, server administration; Linux system… more
    DirectEmployers Association (12/06/25)
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  • Applied Research Associates, Inc. (Eglin AFB, FL)
    …Applied Research Associates, Inc. ( **ARA** ) is seeking a lead administrator for a SIPRNet capability supporting a DoD-owned secret-level enclave that already ... secure SIPRNet operations. This role works directly with the Sr. Systems Administrator and the broader systems-admin team leading engineering and sustainment efforts… more
    DirectEmployers Association (11/21/25)
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  • Schrdinger (NY)
    …+ Administer and maintain a diverse fleet of endpoints and servers (macOS, Windows , and Linux ), including provisioning, patching, and configuration management + ... We're seeking a **Systems Administrator ** to join us in our mission to...Proven experience administering mixed-OS environments, with specific proficiency in Linux (RHEL/Ubuntu) and Windows Server + Robust… more
    DirectEmployers Association (12/03/25)
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  • 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). Develop, ... racking, hardware, and software upgrades. + Experience with the administration of common Windows Server Domain Services such as Active Directory, DNS, DHCP, File and… more
    DirectEmployers Association (11/22/25)
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  • COLSA Corporation (Huntsville, AL)
    …as the technical lead for a diverse infrastructure environment. The role spans Windows systems, Nutanix virtualization, Linux (RHEL), and enterprise storage. The ... IT services in a fast-paced, complex environment. + Support, configure, and troubleshoot Windows 11 and Windows Server environments (AD, Group Policy, DNS/DHCP,… more
    DirectEmployers Association (09/21/25)
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  • PSEG Long Island (Bethpage, NY)
    …and overall health of a variety of cyber security tools within a Microsoft Windows , Linux and UNIX server environments. This role will manage and support ... development techniques. + Working knowledge and experience in supporting Microsoft Windows Server Operating Systems, Directory Services (AD), MS PKI (Certificates),… more
    DirectEmployers Association (11/06/25)
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  • Tyto Athene (Ashburn, VA)
    …environments as an applications or systems administrator . + Practical knowledge of Windows and Linux systems administration. + Experience with Linux or ... Administer and optimize enterprise IT applications and systems in Windows and Linux environments. + This role...Web Services (AWS). + Serve as a senior Splunk Administrator or Architect, responsible for the configuration, maintenance, and… more
    DirectEmployers Association (11/01/25)
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  • Infinity Systems Engineering (Alexandria, VA)
    …and troubleshoot Juniper and Cisco switches. + Perform systems administration on Windows and Linux platforms (updates, security, troubleshooting, management). + ... us! Job Summary: We are seeking a skilled Systems Administrator /Network Engineer to join our mission-driven team. This position...configuration (Cisco experience is a plus) + Proficient in Linux and Windows system administration + Active… more
    DirectEmployers Association (12/03/25)
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  • Linux / Windows Systems…

    COMSO, Inc (Columbia, MD)
    Linux / Windows Systems Administrator II (TS/SCI w/ Polygraph) Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Job Type Full-time ... Baltimore Sun Media Group. Currently, we are seeking aSystems Administrator IIto join our Team! ** Must have active...CWIP: IAT Level II Certification, IA Baseline Certification in Linux , Unix, Windows , or Cisco OS operating… more
    COMSO, Inc (11/27/25)
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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, ... Puppet) to automate repetitive tasks, configuration baselines, and deployment pipelines across both Windows and Linux environments. + Lead efforts to integrate … more
    ManTech (11/05/25)
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  • Linux / Windows Systems…

    TEKsystems (Corona, CA)
    …report directly to the Director of IT and will be responsible for keeping 600 Windows servers and 120 Linux servers patched, secure, and performing well. The ... Description Hiring a Tier 3 System Administrator - This is the top technical support...Windows server 2016 and newer) and 120 SUSE Linux (SLES 12 and SLES 15) including patching, monitoring… more
    TEKsystems (12/05/25)
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  • Linux / Windows Systems…

    Lockheed Martin (King Of Prussia, PA)
    …experience, or equivalent experience/combined education\. * Experience with both Linux and Windows system administration, including installing, patching, ... troubleshooting and hardening Linux and Windows operating systems \(both bare\-metal...be required within 6 months of start\) * CompTIA Linux \+ or Red Hat Certified Systems Administrator more
    Lockheed Martin (12/11/25)
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  • Linux & Windows Systems…

    TEKsystems (Anaheim, CA)
    Windows Servers ( Windows Server 2016 and newer) and 120 SUSE Linux servers (SLES 12 and SLES 15), including patching, performance monitoring, and ensuring ... and efficiency. Qualifications: + 5-7+ years as a System Administrator with deep expertise in Windows Server...2016 or newer. + 5+ years managing and troubleshooting Linux environments, specifically SUSE Linux (SLES 12… more
    TEKsystems (12/09/25)
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  • Sr Principal Systems Administrator

    Northrop Grumman (Aurora, CO)
    …responsibilities will include, but not be limited to, the following:** + Perform as a Linux and Windows System Administrator on large government contracts. + ... Space Systems (NGSP) is seeking a **Sr Principal Systems Administrator ** to join our team at our facility in...server administration experience with Linux (RedHat Enterprise Linux is preferred) and Windows + Perform… more
    Northrop Grumman (11/13/25)
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