• Journeyman Systems Engineer

    KBR (El Segundo, CA)
    Title: Journeyman Systems Engineer KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the ... Travel Requirements: Minimal + Working Hours: Standard Required Qualifications: + Active DoD Top Secret clearance and ability to obtain a Special Compartmented… more
    KBR (12/18/25)
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  • RF Communication Systems Engineer

    SAIC (El Segundo, CA)
    **Description** **Job Description:** SAIC is seeking an experienced **Communications Systems Engineer ** with a strong background in RF systems for satellite, ... communication scenarios, and working with both MILSATCOM and COMSATCOM systems . You will play a crucial role in the...small teams on complex communications projects. + **Clearance:** Active Secret or Top Secret security… more
    SAIC (12/12/25)
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  • Senior Ground Segment Systems

    SAIC (El Segundo, CA)
    **Description** SAIC is seeking you, our latest experienced Senior Ground Segment Systems Engineer to support to the US Space Force (USSF) in developing, ... sustaining a National Security Space system within the Space Systems Command Space Domain Awareness and Combat Power (SSC/SZ)...experience in lieu of degree). + Requires an active Top Secret clearance with the ability to… more
    SAIC (12/05/25)
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  • Principal Reverse Systems Engineer

    RTX Corporation (Anaheim, CA)
    …to work independently yet collaboratively in a team environment. + Active and transferable Top - Secret SCI ( TS /SCI) US government issued security clearance is ... Applied Signal Technology (AST) is seeking a **Principal Reverse Systems Engineer ** who strives for excellence and...systems concepts and signal processing fundamentals + Existing Top - Secret SCI with Polygraph (Active within the… more
    RTX Corporation (10/15/25)
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  • Systems Engineer Sr Principal

    SAIC (Vandenberg Air Force Base, CA)
    **Description** SAIC is seeking candidates for a Space Systems Engineer / Orbital Analyst who will directly support the 18th Space Defense Squadron and the US ... analysis, data analysis, space defense, and satellite conjunction assessment. The engineer provides expertise in Space Defense Awareness (SDA), solving various… more
    SAIC (12/04/25)
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  • Principal Systems Engineer

    SAIC (El Segundo, CA)
    …**Required:** + Active Secret clearance required with the ability to obtain a Top Secret clearance. + BS degree with min 9 years of Systems ... integration strategies and processes to successfully integrate satellite communication systems , segments (Ground, Space, Crypto, Terminals), subsystems, elements, and… more
    SAIC (11/06/25)
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  • Launch Site Facilities and Infrastructure…

    ManTech (Lompoc, CA)
    **MANTECH** seeks a motivated and mission-focused **Launch Site Facilities and Infrastructure Systems Engineer ** to join our team in **Lompoc, CA** . In this ... Delta 30 (SLD 30) activities across various mission support systems , integrating engineering analysis with hands-on facility systems...Active or the ability to obtain and maintain a TS /SCI clearance. **Physical Requirements** + Must be able to… more
    ManTech (11/26/25)
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  • Lead, Crypto-COMSEC Systems Engineer

    L3Harris (San Diego, CA)
    …* Satellite link budget analysis * Understanding of satellite CONOPS * An active Top Secret or TS /SCI clearance In compliance with pay transparency ... the interest of national security. Job Title: Lead, Crypto/COMSEC Systems Engineer Job Code: 30537 Job Location:...logic analyzers, signal generators, and signal analyzers * Active SECRET clearance * Ability to obtain TS more
    L3Harris (11/08/25)
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  • Sr. Principal Cyber Systems Engineer

    Northrop Grumman (Redondo Beach, CA)
    RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... making history. Northrop Grumman has an opening for **Sr. Principal Cyber Systems Engineer ** to join the Special Test Equipment Engineering (STEE) team. The… more
    Northrop Grumman (11/26/25)
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  • Principal PNT Systems Engineer

    The MITRE Corporation (El Segundo, CA)
    …related education and work experience. + Demonstrated technical depth in the field of GPS systems engineering. + Active Top Secret clearance with the ability ... In this role, you will serve as MITRE's PNT systems engineer support to Space Systems...candidate to have a minimum of the following clearance(s): Top Secret This requisition requires the hired… more
    The MITRE Corporation (12/04/25)
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