• 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, ... and Mitigation (CDM) practices. **Preferred Qualifications:** + Microsoft Certified Systems Administrator /Engineer (MCSA/MCSE) or equivalent (eg, Azure … more
    ManTech (11/05/25)
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  • Senior Systems Administrator

    TekSynap (Dahlgren, VA)
    …is seeking a **S** **enior S** **ystem** ** Administrator (Unix/Linux).** The Senior Systems Administrator (Unix/Linux) serves as Key Personnel under ... support for Unix/Linux environments within the Navy enterprise. The Senior Systems Administratoris responsible forconfiguration, optimization, and sustainment… more
    TekSynap (10/31/25)
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  • Sr Principal Systems Engineer - SETC…

    RTX Corporation (Pelham, NH)
    …with internal and external customers. + Cisco Certification, RedHat Certified Systems Administrator , VMWare or other industry relevant certifications + ... secure world. Raytheon is seeking a talented and motivated ** Senior Principal Systems Engineer** to join our...following types of activities: + Maintain Tactical and Non-Tactical Systems : You will provide system and network more
    RTX Corporation (12/11/25)
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  • Senior Network Administrator

    KBR (Honolulu County, HI)
    Title: Senior Network Administrator Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... Impactful Work: Your contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future of space defense.… more
    KBR (11/27/25)
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  • Senior SIGINT Systems

    CACI International (Beale AFB, CA)
    Senior SIGINT Systems Administrator - Sensor Resource Manager Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: ... * * The Opportunity: CACI is seeking a SIGINT Systems Administrator and Sensor Resource Manager Subject...responsible for resolving IT hardware and software infrastructure (servers, network , security, etc.) issues using systems analysis… more
    CACI International (12/12/25)
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  • Sr Principal DevOps Engineer

    Northrop Grumman (Aurora, CO)
    …Engineering department which has 200+ Software Engineer, DevOps Engineer, Systems Administrator , Database Administrator , and Network Engineer peers from ... of history, they're making history. The Northrop Grumman Space Systems Sector is looking for ** Sr . Principal DevOps Engineer** to augment our team. The DevOps… more
    Northrop Grumman (12/11/25)
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  • Sr Principal DevOps Engineer

    Northrop Grumman (Aurora, CO)
    …Engineering department which has 200+ Software Engineer, DevOps Engineer, Systems Administrator , Database Administrator , and Network Engineer peers from ... of history, they're making history. The Northrop Grumman's Space Systems Sector is looking for an experienced ** Sr... Systems Sector is looking for an experienced ** Sr . Principal DevOps Engineer** (Level 4) to augment our… more
    Northrop Grumman (12/02/25)
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  • Sr . Specialist Cyber Infrastructure…

    L3Harris (Carlsbad, CA)
    …sea and cyber domains in the interest of national security. Job Title: Sr . Specialist, Cyber Infrastructure Engineer Job Code: 32501 Job Location: Carlsbad, CA Job ... (Cisco, Juniper), and hands-on experience supporting classified and air-gapped systems . The engineer will design, implement, and secure infrastructure aligned… more
    L3Harris (01/02/26)
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  • Senior Network Administrator

    SOS International LLC (Pearl Harbor, HI)
    …the Charge in Network Operations Across the Pacific!** SOSi is looking for a ** Senior Network Administrator / Network Operations Deputy** to join our ... Pacific theater** . In this role, you'll **drive planning and oversight** for network operations, leading a talented team of administrators and technicians to ensure… more
    SOS International LLC (12/12/25)
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  • Senior Windows Systems

    Leidos (Arlington, VA)
    Systems Security Certified Practitioner (SSCP) ) Training (DISA-US1390 DCWF Windows Systems Administrator ). + Expert knowledge of Windows Active Directory ... in lieu of a degree. + 6+ years of Senior level experience in Windows server (Server OS 2019,...+ Knowledge of security tools and technologies to protect systems from vulnerabilities. + Familiarity with network more
    Leidos (01/07/26)
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