• Systems Administrator

    ManTech (San Diego, CA)
    **MANTECH** seeks a motivated, career and customer-oriented **Systems Administrator ** to join our team onsite in **San Diego, CA.** This is an **onsite** position. ... Diagnose and resolve complex technical issues related to system configurations and network connectivity for Range POR systems + Ensure compliance with security… more
    ManTech (08/29/25)
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  • Windows Systems Administrator

    Northrop Grumman (Redondo Beach, CA)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our employees ... CIDO - Enterprise Classified Solutions is seeking a well-qualified Windows Systems Administrator to join our dynamic team of technical professionals in either… more
    Northrop Grumman (08/20/25)
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  • SkillBridge System Administrator (Onsite)

    RTX Corporation (Anaheim, CA)
    …US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Secret **Are you searching for a post-military career in the Aerospace and ... is looking to host a transitioning veteran as Systems Administrator Fellow and be mentored by our skilled and...environment. + Support infrastructure such as Cisco IOS and Network Appliance ONTAP. + Help build awareness for employees… more
    RTX Corporation (08/08/25)
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  • Senior Linux System Administrator

    GovCIO (Sacramento, CA)
    **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active Secret clearance to join an Operations team. This position ... administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID** _2025-6348_ **Category** _IT Infrastructure & Network Engineering & Operations_… more
    GovCIO (08/08/25)
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  • Principal Contract Administrator

    Northrop Grumman (San Diego, CA)
    RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our employees have ... By joining in our shared mission, we'll support yours of expanding your personal network and developing skills, whether you are new to the field, or an industry… more
    Northrop Grumman (06/27/25)
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  • Systems Administrator

    Synectic Solutions Inc (Oxnard, CA)
    …Active Directory, and network infrastructure is a plus. + Current Top Secret Clearance is required. Synectic Solutions, Inc. is committed to pay transparency for ... SSI is seeking experienced Systems Administrator candidates for a contingent opportunity to be...Provide technical support to end-users, resolving hardware, software, and network issues. + Configure and maintain IT equipment, including… more
    Synectic Solutions Inc (08/14/25)
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  • Principal Windows System Administrator

    RTX Corporation (El Segundo, CA)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current At Raytheon, the foundation of everything we do is rooted ... troubleshoot. + Conduct short-term and long-term capacity planning to address network growth, technology modernization, and service availability. + Monitor security… more
    RTX Corporation (08/21/25)
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  • System Administrator Cross-Platform

    RTX Corporation (El Segundo, CA)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current At Raytheon, the foundation of everything we do is rooted ... Degree in a related field. + Active and transferable US government issued Secret security clearance is required prior to start date. US citizenship is required,… more
    RTX Corporation (08/22/25)
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  • Principal System Administrator

    RTX Corporation (El Segundo, CA)
    …US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our ... and minimum 3 years experience. + Active and transferable US government issued Secret security clearance is required prior to start date. US citizenship is required,… more
    RTX Corporation (07/15/25)
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  • Linux/Windows Senior Systems Administrator

    Lockheed Martin (San Diego, CA)
    …Martin is looking for highly motivated, experienced individuals to perform network /system administration and support on a variety of complex platforms supporting ... Configuration, and Administration \- Experience providing lab support including: Network /System Administration \- Experience with server and desktop management of… more
    Lockheed Martin (07/12/25)
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