• Senior Principal Windows System

    RTX Corporation (El Segundo, CA)
    …and mentor + Oversee administrators whose duties may include setting up administrator and service accounts, maintaining system documentation, tuning system ... following areas: Patch management, vulnerability remediation, High Performance Computing, operating system upgrades, computer security , system monitoring and… more
    RTX Corporation (10/24/25)
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  • SIGINT Systems Administrator

    CACI International (Beale AFB, CA)
    SIGINT Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular ... CACI's team at Beale AFB, CA as a SIGINT Systems Administrator . This role offers a chance...system readiness efforts **Qualifications:** _Required:_ * Active TS/SCI Security Clearance * Security + CE certification *… more
    CACI International (11/18/25)
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  • Principal Windows Systems

    RTX Corporation (El Segundo, CA)
    …meaningful problems that create a safer, more secure world. **Principal System Administrator ** in infrastructure Workplace Services, collaborates with many ... problems. **What You Will Do** : + Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat...Security + CE or equivalent certification) and an Operating System Certification. Ability to obtain 3 months. + Direct… more
    RTX Corporation (11/18/25)
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  • System Administrator

    RTX Corporation (El Segundo, CA)
    …Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is ... required, as only US citizens are eligible for a security clearance​ ** Security Clearance:** DoD Clearance: Secret...secure world. **What You Will Do:** + Provide IT systems administration in a heterogeneous Microsoft Windows and RedHat… more
    RTX Corporation (09/24/25)
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  • Principal Windows System

    RTX Corporation (El Segundo, CA)
    …(CompTIA Security + CE or equivalent certification and an Operating System Certification). + Experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF, experience ... Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is… more
    RTX Corporation (10/21/25)
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  • IT System Administrator

    AECOM (Los Angeles, CA)
    …manage, and maintain user accounts, permissions, and access rights across the network. + ** System Security and Data Protection:** Implement and manage system ... us. **Job Description** AECOM is seeking a motivated IT System Admin in LA, CA. This candidate will provide...adaptive to take on a variety of projects and systems to add functionality, security and reliability… more
    AECOM (11/20/25)
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  • Senior Infrastructure Linux & DevOps…

    Matrix Precise, Inc. (Pleasanton, CA)
    …platform for container orchestration. + Minimum four (4) year's experience working on Linux as a power user or administrator , specifically RedHat or equivalent ... The Sr. Infra Linux Engineer's primary function will be to advance...configuration management using Ansible or similar tools + Incorporate security best practices within the CI/CD pipeline using process… more
    Matrix Precise, Inc. (10/17/25)
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  • Network Administrator - Navy Integrated…

    Huntington Ingalls Industries (San Diego, CA)
    …Computer Information Systems or similar discipline preferred. + Experience with system release upgrades (preferred) + Linux + or Microsoft Certified Solutions ... secure and reliable network infrastructure in support of mission-critical naval training systems . The Network Administrator will manage server and workstation… more
    Huntington Ingalls Industries (10/11/25)
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  • Systems Administrator

    TEKsystems (Santa Monica, CA)
    …to various global initiatives such as automation, virtualization, file services, and Linux /Windows systems . - looking for someone familiar with Linux ... Skills & Qualifications Responsible for day-to-day management and maintenance of various Windows/ Linux Operating Systems . Support NFS, ISCSI, and CIFS shares.… more
    TEKsystems (11/18/25)
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  • Data Center Administrator

    SpaceX (Hawthorne, CA)
    …+ Extensive experience in installing, monitoring, and maintaining data center equipment. + Linux and Windows OS system administration experience. + Power and ... Data Center Administrator Hawthorne, CA Apply SpaceX was founded under...proficient installation and management of server, network, and power systems in our data centers, adhering to best practices… more
    SpaceX (10/03/25)
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