• Technical Fellow Senior Principal III…

    BAE Systems (Boulder, CO)
    **Job Description** The SIGINT Mission Chief Engineer (MCE) serves as the principal technical authority, responsible for leading a cross-functional team and ... TS/SCI security clearance is required. + Demonstrated experience with SIGINT missions, payloads and space systems +...on position level and/or job specifics. **Technical Fellow Senior Principal III SIGINT Mission Chief Engineer more
    BAE Systems (09/12/25)
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  • Principal Software Engineer

    Lockheed Martin (Hanover, MD)
    …provide life\-cycle services to advance mission in support of Cybersecurity and SIGINT midpoint collection\. * You will modernize and sustain capabilities to include ... providing new features and enhancements to Front End Solutions systems \. This will allow for products to work at\-scale...features * Integrate existing software into new or modified systems or operating environments * Develop simple data queries… more
    Lockheed Martin (10/10/25)
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  • Systems Test Engineer

    Northrop Grumman (Chantilly, VA)
    …Mission Systems ** is seeking a candidate to fill a ** Systems Test Engineer / Principal Systems Test Engineer ** position. This position will ... and Responsibilities:** + Support operations and maintenance of fielded SIGINT systems + Execute test procedures on...kits. This requisition may be filled at either the ** Systems ** **Test Engineer ** or ** Principal **… more
    Northrop Grumman (10/23/25)
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  • Senior Principal II - Systems

    BAE Systems (Hudson, NH)
    …medical benefits, the employee assistance program, and business travel accident insurance. **Senior Principal II - Systems Engineer ** **117416BR** EEO Career ... Systems Hammer Program Expertise on integration and test of SIGINT Systems Experience in Aircraft Field Calibration and Functional Test Support. **Required… more
    BAE Systems (10/18/25)
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  • Senior Principal II - Systems

    BAE Systems (Hudson, NH)
    …medical benefits, the employee assistance program, and business travel accident insurance. **Senior Principal II - Systems Engineer ** **117414BR** EEO Career ... and SONAR Systems Test + Experience in Sonar or SIGINT Systems **Preferred Education, Experience, & Skills** + MS in Electrical Engineering, Systems more
    BAE Systems (10/18/25)
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  • Principal Systems Engineer

    Northrop Grumman (Linthicum Heights, MD)
    …will be an on-site position located in Linthicum, MD. This requisition may be filled as a Principal Systems Engineer or a Senior Principal Systems ... Special Program Access (SAP) prior to start.** **Basic Qualifications for a Principal Systems Engineer :** + Bachelor's degree with 5 years of experience,… more
    Northrop Grumman (10/08/25)
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  • Principal Mission / Systems

    RTX Corporation (Annapolis Junction, MD)
    …flexibility at hiring manager discretion.** Applied Signal Technology (AST) is seeking a ** Principal ** **Mission / Systems Engineer ** who strives for ... of our world. AST provides trusted strategic and tactical SIGINT solutions that secure the interests of the US...relevant experience + 8 years of practical experience in Systems Engineering including experience with design, development and testing… more
    RTX Corporation (10/23/25)
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  • Principal Reverse Systems

    RTX Corporation (Anaheim, CA)
    …flexibility at hiring manager discretion.** Applied Signal Technology (AST) is seeking a ** Principal Reverse Systems Engineer ** who strives for excellence ... of our world. AST provides trusted strategic and tactical SIGINT solutions that secure the interests of the US...a minimum of 8 years of practical experience in systems architecture and systems engineering + Experience… more
    RTX Corporation (10/15/25)
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  • Principal Systems Engineer

    Leidos (Columbia, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Principal Systems Engineer ** in our **National Security Sector's (NSS) Cyber & ... (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence ( SIGINT ), and Cryptographic Key Management. At **Leidos** , we...a difference in National Security** **Job Summary:** As a Principal Systems Engineer you will… more
    Leidos (11/13/25)
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  • Principal Systems Engineer

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a Principal Systems Engineer in our **National Security Sector's (NSS) Cyber & Analytics ... (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence ( SIGINT ), and Cryptographic Key Management. At **Leidos** , we...impactful results. Leidos is currently looking to add a Principal Systems Engineer (SE-3) to… more
    Leidos (10/09/25)
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  • 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 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 (08/29/25)
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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 RF MMIC Design Engineer

    Mercury Systems (Peachtree Corners, GA)
    …The Signal Processing business unit at Mercury Systems is seeking a Principal RF MMIC Design Engineer to join a very collaborative team developing ... assemblies + Experience with aerospace and defense markets, including EW and SIGINT applications + Familiar with automated test software applications such as LabView… more
    Mercury Systems (11/15/25)
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  • Principal /Sr Principal Field…

    Northrop Grumman (Chantilly, VA)
    …be a part of our mission! We are looking for you to join our team as a ** Principal Field Engineer ** or **Sr. Principal Field Engineer ** based out of ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...hazardous locations. _This position can be filled as a Principal Field Engineer or Sr. Principal more
    Northrop Grumman (11/12/25)
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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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  • Principal Software Engineer

    RTX Corporation (West Valley City, UT)
    …flexibility at hiring manager discretion.** Applied Signal Technology (AST) is seeking a ** Principal Software Engineer ** who strives for excellence and have a ... 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 (11/07/25)
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  • Principal RF Engineer

    Leidos (Arlington, VA)
    …engineers, systems engineers, software/firmware engineers, scientists, etc.). The ** Principal RF Engineer ** will direct the design and development ... nation's defense.** We currently have an opening for a ** Principal RF Engineer ** to work with a...Matlab) + Experience working in Electronic Warfare applications and systems , SIGINT and/or radar fields as a… more
    Leidos (11/11/25)
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  • Principal / Sr. Principal RF…

    Northrop Grumman (Linthicum Heights, MD)
    …JAN 2026_** + **_THIS ROLE IS ON-SITE_** **​** **Basic Qualifications:** + ** Principal RF Microwave Design Engineer :** Bachelor Degree in Electrical Engineering ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...MS degree; or 0 years with PhD) + **Sr. principal RF Microwave Design Engineer ** : Bachelor… more
    Northrop Grumman (11/07/25)
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