• Senior Principal SEIT Engineer

    RTX Corporation (Anaheim, CA)
    …Managed by Collins Aerospace **Applied Signal Technology (AST** ) is seeking a **Senior Principal SEIT Engineer ** who strives for excellence and have a passion ... while embracing integrity, innovation and work-life balance. The **Senior Principal SEIT Engineer ** will have a strong...technical field. Ph.D. preferred + Background in GNSS, radar, SIGINT , communications, or EW systems . + Familiarity… more
    RTX Corporation (10/09/25)
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  • Principal Elasticsearch Systems

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Principal ** **Elasticsearch Systems Engineer ** in our **National Security Sector's ... more. **Join us and make a difference in National Security!** **Job Summary** The Principal Elasticsearch Systems Engineer role provides support across an… more
    Leidos (10/30/25)
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  • Principal Antenna Engineer

    SpaceX (Hawthorne, CA)
    Principal Antenna Engineer (Starshield) Hawthorne, CA Apply SpaceX was founded under the belief that a future where humanity is out exploring the stars is ... the ultimate goal of enabling human life on Mars. PRINCIPAL ANTENNA ENGINEER (STARSHIELD) Starshield leverages SpaceX's...work on RF or antennas + Experience with RF systems including SIGINT , ELINT, radar, or communications… more
    SpaceX (10/02/25)
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  • Principal Endpoint Security Systems

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity a ** Principal Endpoint Security Systems Engineer ** in our **National Security Sector's (NSS) ... Security!** **Job Description** This effort is seeking an experienced endpoint security systems engineer to join our Cyber Security Engineering team. The… more
    Leidos (11/28/25)
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  • Senior Principal MMIC Design…

    Mercury Systems (Peachtree Corners, GA)
    …aerospace and defense applications, advancing innovation where it matters most. The senior principal mmic design engineer will be responsible for designing and ... Req. Number 25-339 Job Description Mercury Systems is seeking the best and brightest talent...that operate from HF through Ka band. The ideal engineer has significant design experience with both GaAs and… more
    Mercury Systems (12/04/25)
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  • Senior Principal Software Engineer

    RTX Corporation (Anaheim, CA)
    …by Collins Aerospace **Applied Signal Technology (AST** ) is seeking a **Senior Principal Software Engineer ** with deep expertise in Global Navigation Satellite ... warfare environment to lead the development of multi-sensor guidance and navigation systems . AST provides trusted strategic and tactical SIGINT solutions that… more
    RTX Corporation (10/07/25)
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  • Senior Principal Software Engineer

    RTX Corporation (Anaheim, CA)
    …at hiring manager discretion.** Applied Signal Technology (AST) is seeking a **Senior Principal Software Engineer ** who strives for excellence and have a passion ... of our world. AST provides trusted strategic and tactical SIGINT solutions that secure the interests of the US...new work products or enhancement of existing applications and systems + Design, code, test, integrate, and document software… more
    RTX Corporation (12/11/25)
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  • Principal Software Engineer

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Principal Software Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics ... Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence ( SIGINT ), and Cryptographic Key Management. At **Leidos** , we offer… more
    Leidos (11/19/25)
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  • Principal Software Engineer

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Principal ** **Software Engineer ** in our **National Security Sector's (NSS) Cyber & ... Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence ( SIGINT ), and Cryptographic Key Management. At **Leidos** , we offer… more
    Leidos (11/07/25)
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  • Principal Test Engineer

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Principal Test Engineer in our **National Security Sector's (NSS) Cyber & Analytics Business ... Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence ( SIGINT ), and Cryptographic Key Management. At **Leidos** , we offer… more
    Leidos (10/31/25)
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