• Network System Administrator

    ManTech (Los Angeles, CA)
    **ManTech** seeks a motivated, career and customer-oriented ** Network System Administrator ** **III** to join our team in **Los Angeles, CA.** The primary ... & SSL. + Maintain file servers, Firewalls, network access, Security Monitoring Systems and system documentation as required. + Interface with local customers… more
    ManTech (09/10/25)
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  • Network & Systems…

    Leonardo DRS, Inc. (San Diego, CA)
    …requirements + Perform support tasks as needed requested by the Senior System Administrator , Information System Security Manager (ISSM), Information ... one (1) year education or directly related experience in network system support duties + Knowledge of...Security Clearance Required, with the ability to upgrade to Top Secret and maintain clearance eligibility throughout… more
    Leonardo DRS, Inc. (08/27/25)
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  • Computer System Administrator

    Northrop Grumman (Palmdale, CA)
    …will include but not be limited to the following: + Perform as primary Systems or Network Administrator for a classified government contract. + ... of multi-user computer systems , including coordination with network , software, and system engineers, PC desktop...last 5 years); additionally, the selected candidate must be Top Secret eligible, and the required security… more
    Northrop Grumman (08/13/25)
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  • Sr. Principal Network Engineer - Top…

    Northrop Grumman (Redondo Beach, CA)
    …Cisco hardware (routers, switches, and firewalls) **Preferred Qualifications:** + Bachelor's degree Network Engineering + Active Top Secret /SCI, Polygraph, ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the...Classified Solutions team is seeking a highly experienced **Senior** ** Network Administrator ** to join its dynamic team… more
    Northrop Grumman (08/20/25)
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  • Systems Administrator - TS…

    General Dynamics Information Technology (El Segundo, CA)
    …RQ207759 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... years of related experience **US Citizenship Required:** Yes **Job Description:** SYSTEMS ADMINISTRATOR General Dynamics Information Technology (GDIT) is seeking… more
    General Dynamics Information Technology (09/23/25)
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  • TS /SCI Low Band System Software…

    Insight Global (Beale AFB, CA)
    … systems , servers, storage, and network connectivity. Additionally, this Systems Administrator will provide system administration for assigned ... for resolving IT hardware and software infrastructure issues, including servers, network , and security, using systems analysis techniques and procedures… more
    Insight Global (09/23/25)
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  • Information System Security Officer (ISSO)

    Lockheed Martin (Palmdale, CA)
    …you love then we want to build a better tomorrow with you\. **Basic Qualifications:** Top Secret \( TS \) Clearance Active DoD 8140 DCWF 722 Certification ... Experience as an Information System Security Officer, System Administrator , Network Administrator...must be a US Citizen for consideration\. **Clearance Level:** Top Secret with Investigation or CV date… more
    Lockheed Martin (08/29/25)
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  • Sr Principal HPC Linux Systems…

    Northrop Grumman (Redondo Beach, CA)
    … systems . **Preferred Qualifications:** + Bachelor's degree in Information Technology + Active Top Secret , TS /SCI, Polygraph, or SAP/SAR access would be ... Grumman Classified Solutions team is seeking a senior **Linux Systems Administrator ** to join its dynamic team...have the ability to obtain, and maintain, a DOD ** Top Secret ** level security clearance as a… more
    Northrop Grumman (09/11/25)
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  • Senior System Administrator (MSO)

    General Dynamics Information Technology (Livermore, CA)
    …**Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job Family:** IT ... years of related experience **US Citizenship Required:** Yes **Job Description:** ** Systems Administrator /Mission Support Operator -** **$10K Sign-on bonus**… more
    General Dynamics Information Technology (09/20/25)
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  • Systems Administrator , Mid

    BOOZ, ALLEN & HAMILTON, INC. (San Diego, CA)
    …insight into their network through monitoring and performance management. Your system administrator expertise will be vital as you identify problem areas ... Systems Administrator , Mid The Opportunity: Your...technical and non-technical senior leadership on complex issues + Top Secret clearance + Bachelor's degree in… more
    BOOZ, ALLEN & HAMILTON, INC. (09/17/25)
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