• Raytheon Technologies (Mckinney, TX)
    …and maintenance of systems hardware and software related to a Linux / Windows infrastructure for classified programs. Duties include, but are not limited ... Enterprise Linux , Active Directory, WSUS, VMware, BackupExec, NetBackup, prior systems administration experience, Windows or Linux administration, Backup… more
    Upward (07/20/25)
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  • Top Secret Clearance Jobs (Lone Tree, CO)
    …of technical standards relating to systems security; experience administering UNIX, Linux , and Windows operating systems , experience with large-scale ... About the job Systems Security Manager I Top Secret Clearance Jobs...policies. As an SSM you will serve as the principal advisor on all matters technical and otherwise involving… more
    Upward (07/23/25)
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  • Linux Principal Windows

    Serco (Kirtland AFB, NM)
    **Position Description** Serco is seeking a Linux Principal Windows Systems Administrator to join our team supporting the Defense Systems sector at ... other legally protected characteristics. Click here to apply now (https://careers-sercous.icims.com/jobs/69556/ linux - principal - windows - systems -administrator/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834477830) **New to… more
    Serco (05/17/25)
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  • Sr Principal Systems Engineer…

    General Dynamics Information Technology (Washington, DC)
    …+ years of related experience **US Citizenship Required:** Yes **Job Description:** **Senior Principal Systems Engineer - Linux ** Design, deploy, integrate ... as you accelerate your career. At GDIT, people are our differentiator. As a **Senior Principal Systems Engineer - Linux ** , you will help ensure today… more
    General Dynamics Information Technology (07/07/25)
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  • Principal Linux System Administrator

    BAE Systems (Manchester, NH)
    …**Key responsibilities include:** + Administer patch management for RHEL-based Linux systems , including vulnerability scanning, patch deployment, and ... integration. + Deploy and configure Splunk Universal Forwarders on Linux systems ; manage log ingestion and index...be available based on position level and/or job specifics. ** Principal Linux System Administrator** **114328BR** EEO Career… more
    BAE Systems (07/10/25)
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  • Senior Systems Administrator…

    Mount Sinai Health System (New York, NY)
    …at Mount Sinai. The Administrator is the principal technology expert for Windows and Linux systems , and help support high-performance computing (HPC) ... + 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 (06/24/25)
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  • Linux Systems Administrator…

    Northrop Grumman (Wright Patterson AFB, OH)
    …are not only part of history, they're making history. Northrop Grumman is seeking a Linux Systems Administrator to maintain and enhance Linux Systems ... DevOps CI/CD pipelines. You will be primarily focused on Linux Systems Administration and be prepared for...with an active TS/SCI clearance **Basic Qualifications for a Principal Systems Administrator:** + Bachelor's degree in… more
    Northrop Grumman (05/29/25)
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  • Principal Architect - LINUX - Active…

    General Dynamics Information Technology (Washington, DC)
    …the current Linux and Windows environment. + Enterprise Authorization: Integrate Linux Systems (currently, Ubuntu and RHEL 7/8 systems ) into a ... personal impact as a ** Principal Architect** **for** ** Linux ** with GDIT. A career in systems ...and Single Sign On. + Enterprise Provisioning: Configure new Linux systems for customer use and ensuring… more
    General Dynamics Information Technology (06/25/25)
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  • Principal Linux Systems

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a ** Principal Linux Systems Administrator** in our **National Security Sector's (NSS) Cyber ... with lasting impactful results. Join our team as a ** Linux Systems Administrator** , where you'll provide...Your role will involve configuring and managing UNIX and Windows operating systems , troubleshooting, maintaining network integrity,… more
    Leidos (05/13/25)
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  • Principal Linux Systems

    Northrop Grumman (Aurora, CO)
    …Want You!** The Northrop Grumman Classified Solutions team is seeking an experienced ** Linux Systems Administrator** to join its dynamic team of technical ... be limited to the following: + Perform as primary Linux Systems Administrator for a classified government...subnets, routing, and VLANs; Cisco experience and/or certification + Windows server management experience + Windows AD,… more
    Northrop Grumman (06/25/25)
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  • Principal Linux Systems

    Northrop Grumman (Melbourne, FL)
    …Want You!** The Northrop Grumman Classified Solutions team is seeking an experienced ** Linux Systems Administrator** to join its dynamic team of technical ... be limited to the following: + Perform as primary Linux Systems Administrator for a classified government...subnets, routing, and VLANs; Cisco experience and/or certification + Windows server management experience + Windows AD,… more
    Northrop Grumman (07/08/25)
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  • Principal Platform Engineer / Linux

    RTX Corporation (Aurora, CO)
    …that create a safer, more secure world. Raytheon Technologies (RTX) is seeking a Principal Platform Engineer / Linux with well-rounded Linux Infrastructure ... Customer for Technical Exchange Meetings (TEMs) as required. The ** Principal Platform Engineer / Linux ** would be...implementation, of infrastructure solutions + You will maintain existing systems through Linux Based Tools and manage… more
    RTX Corporation (06/13/25)
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  • Principal Linux Systems

    Northrop Grumman (Linthicum Heights, MD)
    …include but not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract. + Communicate effectively ... information system environments. **Technical Abilities** : + Experience installing and managing Linux operating systems in a server environment. + Understanding… more
    Northrop Grumman (07/02/25)
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  • Principal System Admin ( LINUX

    RTX Corporation (Marlborough, MA)
    …will do:** + Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment supporting Windows Server ... DT - Information Workplace Services team for a talented Principal Systems Administrator / Analyst. You will...WSUS, VMware, Veeam, MySQL, Remote Desktop Gateway, and Splunk, Windows or Linux administration; experience with backup… more
    RTX Corporation (05/28/25)
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  • Principal Linux Specialist

    RTX Corporation (Mckinney, TX)
    …and maintenance of systems hardware and software related to a Linux / Windows infrastructure for classified programs. Duties include, but are not limited ... Enterprise Linux , Active Directory, WSUS, VMware, BackupExec, NetBackup, prior systems administration experience, Windows or Linux administration, Backup… more
    RTX Corporation (07/16/25)
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  • Principal Linux Administrator

    RTX Corporation (El Segundo, CA)
    …NetBackup, prior systems administration and networking administration experience, Windows or Linux administration, backup, and recovery enterprise suites. ... secure world. **What You Will Do:** + Provide IT systems administration in a heterogeneous RedHat Enterprise / Microsoft...deploy Red Hat Podman containers. + Experience with Server, Windows Server internals or Linux fundamentals to… more
    RTX Corporation (06/23/25)
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  • Sr Principal Windows Systems

    Northrop Grumman (Dulles, VA)
    …Information and Digital Office (CIDO) organization is seeking a highly experienced **Senior Principal Windows Systems Administrator** to join its dynamic ... + DoD 8570 Certification in a primary Operating System ( Windows , Linux , Cisco) + Experience operating under...Linux , Cisco) + Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF,… more
    Northrop Grumman (07/11/25)
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  • Sr. Principal Linux System…

    RTX Corporation (Aurora, CO)
    …eligible for a security clearance​ **Security Clearance:** TS/SCI with Polygraph **Sr. Principal Linux System Administrator, Aurora, CO, must have active TS/SCI ... supporting a Raytheon program in a classified environment as a Senior Principal Linux System Administrator. + Responsibilities include building, maintaining, and… more
    RTX Corporation (07/19/25)
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  • Sr Principal Windows Systems

    Northrop Grumman (Palmdale, CA)
    …The Northrop Grumman Classified Solutions team is seeking a highly experienced **Senior Windows Systems Administrator** to join its dynamic team of technical ... classified environment + Certification in a primary Operating System ( Windows , Linux , Cisco) + Experience operating under...Linux , Cisco) + Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF,… more
    Northrop Grumman (07/09/25)
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  • Principal Windows Systems

    Northrop Grumman (Redondo Beach, CA)
    …of the best work of your career. Northrop Grumman is seeking a well-qualified Windows Systems Administrator to join its dynamic team of technical professionals ... will include but not be limited to the following: + Perform as primary Windows Systems Administrator for a large, classified government contract. + Communicate… more
    Northrop Grumman (07/18/25)
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