• Resiliency Systems Engineer (Level 4)

    Lockheed Martin (Sunnyvale, CA)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI w/Poly **Other Important Information You Should Know** ... performing complex component\- or system\-level performance analyses * Active TS / SCI security clearance \(U\.S\. citizenship required\) **Desired Skills:**… more
    Lockheed Martin (11/06/25)
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  • Terrestrial COMSEC Network Engineer

    CACI International (Vandenberg AFB, CA)
    …responsible for executing the communications security program, ensuring the protection of sensitive information transmitted network connected and point to point ... Terrestrial COMSEC Network Engineer Job Category: Information Technology Time...Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: Regular Percentage… more
    CACI International (10/25/25)
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  • Configuration Management Engineer (Onsite)

    RTX Corporation (Beale AFB, CA)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI - Current Raytheon Company, Managed By Collins Aerospace. Collins ... field and minimum 3 years of experience + Active and transferrable US government issued TS / SCI security clearance is required prior to start ​with the ability to… more
    RTX Corporation (09/27/25)
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  • Network Engineer Tier 2

    CACI International (El Segundo, CA)
    Network Engineer Tier 2 Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee ... ongoing basis. **Opportunity:** Team CACI is seeking a Network Engineer to support an Intelligence Community customer's diverse network...field + 5+ years of related work experience + TS / SCI w/ poly is required + DoD… more
    CACI International (10/25/25)
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  • Network Engineer Tier 3

    CACI International (Vandenberg AFB, CA)
    Network Engineer Tier 3 Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee ... basis. **Opportunity:** Team CACI is seeking a Senior Network Engineer to support an Intelligence Community customer's diverse network...experience + 10+ years of related work experience + TS / SCI w/ poly is required + Advanced… more
    CACI International (10/25/25)
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  • Network Engineer (Old Town San Diego)

    FGS, LLC (San Diego, CA)
    …Citizenship** **Employment Term and Type:** Regular, Full Time **Required Security Clearance:** Secret Clearable to TS / SCI **Required Education: High School ... Network Engineer (Old Town San Diego)San Diego, CA **Requires...High School Diploma or equivalent **Security Clearance Requirements:** + Secret upgradable to TS / SCI **Physical… more
    FGS, LLC (08/26/25)
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  • Project Engineer and Risk Manager

    BOOZ, ALLEN & HAMILTON, INC. (El Segundo, CA)
    …investigation and may need to meet eligibility requirements for access to classified information ; TS / SCI clearance is required. Compensation At Booz Allen, ... Project Engineer and Risk Manager The Opportunity: Are you...briefings, reports, meeting minutes and action items + Active TS / SCI clearance; willingness to take a polygraph… more
    BOOZ, ALLEN & HAMILTON, INC. (11/11/25)
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  • Senior Model Based Systems Engineer

    Noblis (San Diego, CA)
    …Area Networks (WAN). **Position Overview** Noblis is seeking an experienced **Senior Model-Based Systems Engineer with a TS / SCI clearance** to join our team ... + 18 years of experience. + Proficiency with MBSE principles and methodologies + TS / SCI is required + US Citizenship is required Desired Qualifications + Expert… more
    Noblis (09/18/25)
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  • Lead Software Developer

    The Boeing Company (El Segundo, CA)
    …with software best practices, design principles, and coding standards. + Active US Top Secret / SCI Security Clearance **Travel:** 10% **CodeVue Coding ... software development, facilitate code reviews, and provide technical guidance on software standards and design principles. + Develop information that extends… more
    The Boeing Company (11/07/25)
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  • GNC Engineer , Beam Planning

    SpaceX (Hawthorne, CA)
    …start-up atmosphere + Excellent communication skills both written and verbal + Active TS / SCI clearance or the ability to obtain and maintain one ADDITIONAL ... GNC Engineer , Beam Planning Hawthorne, CA Apply SpaceX was...areas like state estimation, spacecraft systems design, optimization, and software development to join the Starshield GNC team. Engineers… more
    SpaceX (10/23/25)
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