• 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)
    - Related Jobs
  • Senior Systems Administrator

    Mount Sinai Health System (New York, NY)
    …Mount Sinai. The Administrator is the principal technology expert for Windows and Linux systems, and help support high-performance computing (HPC) ... practices. + 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)
    - Related Jobs
  • Linux / Windows Senior

    Lockheed Martin (San Diego, CA)
    …including: Network/System Administration \- Experience with server and desktop management of Linux and Windows environments \- Familiar with package deployment, ... \- Solid background/experience with Red Hat Enterprise \- Microsoft Windows Server Setup, Configuration, and Administration \- Experience providing lab… more
    Lockheed Martin (10/17/25)
    - Related Jobs
  • 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 ... Senior Systems Administrator ( Linux )... Senior Systems Administrator ( Linux ) Location HI - Kaua'i...AND EXPERIENCE: + Advanced knowledge and certification in both Windows Server and RHEL is considered highly desired. +… more
    Alaka'ina Foundation Family of Companies (10/23/25)
    - Related Jobs
  • Senior Linux Systems…

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

    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 ... QALUIFICATIONS Experience: + Advance knowledge and certification in both Windows Server and RHEL is considered highly desired +...following OS Certifications required + Linux + Linux + Red Hat Certified System Administrator (RHCSA)… more
    Amentum (09/24/25)
    - Related Jobs
  • Mid- Senior Linux Systems…

    KBR (Sioux Falls, SD)
    Title: Mid- Senior Linux Systems Administrator Belong. Connect. Grow. with KBR! Around here, we define the future. We are a company of innovators, thinkers, ... has an immediate need for an energetic and dynamic Mid- Senior Systems Administrator in support of the...skilled team. This role leads technical operations across both Windows and Unix/ Linux environments (with a primary… more
    KBR (09/23/25)
    - Related Jobs
  • Senior Linux System…

    BAE Systems (San Diego, CA)
    …Other incentives may be available based on position level and/or job specifics. ** Senior Linux System Administrator ** **116453BR** EEO Career Site Equal ... career with BAE Systems. BAE Systems is seeking a Senior Closed Area Linux Systems Administrator...after-hours or weekend support may be required for maintenance windows or incident response. You must be able to… more
    BAE Systems (09/18/25)
    - Related Jobs
  • Senior Linux Systems…

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a ** Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where you'll provide...to 15 years. + **Technical Skills** : Experience with LINUX , Windows and Virtualization + **Security Clearance**… more
    Leidos (10/09/25)
    - Related Jobs
  • Senior Principal Linux

    RTX Corporation (El Segundo, CA)
    …more secure world. **What You Will Do** + We are seeking an experienced Linux Administrator that will be working in a highly collaborative, multi-platform and ... operation, and maintenance of systems hardware and software related to a Linux / Windows infrastructure for classified programs. Duties include, but are not… more
    RTX Corporation (09/26/25)
    - Related Jobs