• Principal Linux Administrator (Top…

    RTX Corporation (Richardson, TX)
    …across multiple sites. This role is ideal for candidates with specialized expertise in Linux system administration , a commitment to collaboration, and the ... **Enterprise Services** team: **Role Overview:** RTX is seeking a Principal Linux Administrator to support a highly..., and software. + Perform software upgrades, patching, and system maintenance on Linux systems .… more
    RTX Corporation (12/12/25)
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  • Principal Linux Systems

    RTX Corporation (Pelham, NH)
    …that create a safer, more secure world. Raytheon has an opportunity for a ** Principal Linux System Administrator** operational support and sustainment for a ... other government mandated processes during the life cycle of systems they will maintain. **What You Will Do:** +...a security clearance. + Experience with Red Hat Enterprise Linux (RHEL), including system installation, administration more
    RTX Corporation (12/09/25)
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  • Principal Linux Systems

    RTX Corporation (Aurora, CO)
    …You will be supporting a Raytheon program in a classified environment as a ** Principal Linux System Administrator in Aurora, CO.** Responsibilities include ... of VMware (ESXi and vCenter). **Qualifications We Prefer:** + Deployment and administration of systems in Amazon Web Services (AWS)/Commercial Cloud Services… more
    RTX Corporation (12/29/25)
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  • Principal Systems Engineer…

    Themis Insight (Fort Meade, MD)
    …for a bachelor's degree. + Proficient with Linux . Minimum of 2 years Linux system administration experience. + Experience with patching and upgrading ... Military expertise to every case. We are hiring a Principal Systems Engineer ( Linux ) to...systems into ongoing operations. Develops technical documentation. Develops system Architecture and system design documentation. Guides… more
    Themis Insight (12/19/25)
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  • Principal Linux Systems

    Northrop Grumman (Linthicum Heights, MD)
    …work of your career. Northrop Grumman Classified Solutions is seeking a well-qualified ** 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...verbal format. + Maintain smooth operation of multi-user computer systems , including coordination with network, software, and system more
    Northrop Grumman (11/19/25)
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  • Principal Linux Systems

    RTX Corporation (El Segundo, CA)
    …only US citizens are eligible for a security clearance. + Must have experience with Linux systems administration + Experience with one of the following: ... meaningful problems that create a safer, more secure world. ** Principal System Administrator** in infrastructure Workplace Services,...You Will Do:** + Provide IT systems administration in a heterogeneous Redhat Enterprise Linux more
    RTX Corporation (12/05/25)
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  • Sr Principal Linux Systems

    Northrop Grumman (Boulder, CO)
    …include but not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract. + Communicate effectively ... Information and Digital Office (CIDO) organization is seeking a highly experienced **Senior Linux Server Admin ** to join its dynamic team of technical… more
    Northrop Grumman (12/12/25)
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  • Principal System Administrator…

    RTX Corporation (El Segundo, CA)
    …of our systems and support IT infrastructures around the world. **Sr. Principal System Administrators,** internally known as Sr. Principal Analyst, ... teams to support exciting, critical programs with classified information system capabilities. Success in this role means you can...problems. **What You Will Do** : + Provide IT systems administration in a heterogeneous Microsoft Windows… more
    RTX Corporation (12/09/25)
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  • Senior Systems Administrator - Windows/…

    Mount Sinai Health System (New York, NY)
    …The Administrator is the principal technology expert for Windows and Linux systems , and help support high-performance computing (HPC) environment in the ... job scheduler are preferred. **Responsibilities** + Design, develop, implement all system administration tasks, including hardware and software configuration and… more
    Mount Sinai Health System (12/22/25)
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  • Sentinel - Engineer / Principal Engineer…

    Northrop Grumman (Roy, UT)
    …and custom software in a security constrained environment + 2 years of experience with Linux or Cisco operating systems ** Principal Engineer Systems ... Defense Systems is seeking a **Engineer / Principal Systems Test Engineer** . This position...To Do** + Maintain smooth operation of multi-user computer systems , including coordination with network, software, and system more
    Northrop Grumman (11/27/25)
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