• Principal Data Science

    UKG (Ultimate Kronos Group) (Lowell, MA)
    …in developing and tuning foundational models, deploying and managing RAG pipelines + Data science foundations which include: data preparation, statistical ... We're united by purpose, inspired by you. As a Principal Detection Engineer, you will be part of UKG's...Detection Engineer, you will be part of UKG's Global Security Detection Engineering team. This global team is responsible… more
    UKG (Ultimate Kronos Group) (05/22/25)
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  • Principal Cybersecurity Engineer

    Mercury Systems (Hudson, NH)
    Req. Number 25-361 Job Description Job Summary: The Principal Security Engineer is responsible for implementing, maintaining, monitoring and managing secure ... enhancements to ensure the organization is evolving with the threat landscape. The Principal Security Engineer is expected to contribute to the cybersecurity… more
    Mercury Systems (06/24/25)
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  • Principal Radar Receiver / Exciter…

    RTX Corporation (Tewksbury, MA)
    …Status Requirements:** The ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as only US citizens are ... eligible for a security clearance ** Security Clearance:** DoD Clearance: Secret...of Raytheon products. This position is for a multi-disciplined ** Principal Radar Receiver / Exciter Integration & Test Engineer**… more
    RTX Corporation (06/04/25)
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  • Senior Principal Program Manager

    Mercury Systems (Hudson, NH)
    …and Distribution Line of Business (LOB) in Hudson, NH, seeks a Senior Principal Program Manager to provide leadership across our program portfolio. This high ... budget. This is an exciting role as a Senior Principal Program Manager to join our growing, engaging, and...to challenges. Required Qualification: + Typically requires Bachelor of Science degree in Engineering, Business, Supply Chain or related… more
    Mercury Systems (06/24/25)
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  • Principal Software Infrastructure Engineer

    RTX Corporation (Tewksbury, MA)
    …Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is ... required, as only US citizens are eligible for a security clearance​ ** Security Clearance:** DoD Clearance: Secret...create a safer, more secure world. We're seeking a Principal Software Engineer to lead the design, development, and… more
    RTX Corporation (06/21/25)
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  • Senior Principal Electrical COTS Computing…

    RTX Corporation (Marlborough, MA)
    …Status Requirements:** The ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as only US citizens are ... eligible for a security clearance ** Security Clearance:** DoD Clearance: Secret...Controls & Electronics **(SCE)** Department is seeking a Senior Principal Electrical Engineer with strong Commercial-Off-The-Shelf **(COTS)** computing and… more
    RTX Corporation (06/01/25)
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  • Principal RF Design Engineer

    RTX Corporation (Marlborough, MA)
    …Status Requirements:** The ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as only US citizens are ... eligible for a security clearance ** Security Clearance:** DoD Clearance: Secret...of Raytheon products. We have an opportunity for a ** Principal RF Design Engineer** who is seeking to utilize… more
    RTX Corporation (06/04/25)
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  • RF Engineer, Principal / Microwave

    Lockheed Martin (Chelmsford, MA)
    …and Fire Control's Microwave Center of Excellence is seeking to hire an RF Principal Engineer who will have the opportunity to join a team of highly competent ... RF\. **What You Will Be Doing** In this highly visible role, the RF Principal Engineer will have the opportunity to architect and design Radio Frequency systems and… more
    Lockheed Martin (04/18/25)
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  • Senior Principal Systems Engineer

    RTX Corporation (Marlborough, MA)
    …Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is ... required, as only US citizens are eligible for a security clearance​ ** Security Clearance:** Secret - Current...and GhostEye Family of Radars are seeking a **Senior Principal ** **Systems Engineer** to help in the execution of… more
    RTX Corporation (04/30/25)
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  • Principal Product Manager

    Mercury Systems (Hudson, NH)
    …environments. + Familiarity with open architectures and experiences with ruggedized hardware, security and real-time data processing. + US Citizen with active ... Supply Chain). + Familiarity with open architectures and experiences with ruggedized hardware, security and real-time data processing. + A track record of… more
    Mercury Systems (05/21/25)
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  • Principal Systems Engineer

    RTX Corporation (Tewksbury, MA)
    …Type:** Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** ** Security Clearance:** DoD Clearance: Secret At Raytheon, the foundation of ... Integrated Air & Missile Defense Systems (IAMDS) department is seeking a ** Principal Systems Engineer.** IAMDS leads all aspects of Systems Engineering that drive… more
    RTX Corporation (06/18/25)
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  • Principal Manufacturing Engineer

    Mercury Systems (Hudson, NH)
    …leading provider of mission-critical avionics and display system solutions. The principal manufacturing engineer works on behalf of Mercury Systems operations ... with process development and improvement + Analyzing production efficiency data , interpret results, and directing improvement initiatives + Training production… more
    Mercury Systems (06/24/25)
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  • Senior Principal Mechanical Design Engineer

    RTX Corporation (Marlborough, MA)
    …Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is ... required, as only US citizens are eligible for a security clearance​ ** Security Clearance:** DoD Clearance: Secret...support. Mechanical Engineering is searching for an experienced Senior Principal Design Engineer to work in the Radar Design… more
    RTX Corporation (06/23/25)
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  • Principal Electrical Engineer - Signal…

    RTX Corporation (Marlborough, MA)
    …citizens are authorized to access information under this program/contract. ** Security Clearance:** None/Not Required **Raytheon Company, Managed by Collins ... to share information and aid in decision-making. As a ** Principal Electrical Engineer** , you will join our **Hardware...design improvements and helps develop operational plans to gather data needed for system enhancements. This position is both… more
    RTX Corporation (05/20/25)
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  • Principal IAM Software Engineer

    UKG (Ultimate Kronos Group) (Lowell, MA)
    …, MIS, or equivalent experience. Preferred Qualifications: * Master's degree in computer science , Information Security , or a related field * Experience with ... ensuring compliance with regulations, and managing user access to systems and data . This individual will collaborate with various teams, including IT, cybersecurity,… more
    UKG (Ultimate Kronos Group) (04/10/25)
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  • Principal ECAD Board Layout Engineer

    RTX Corporation (Tewksbury, MA)
    …Status Requirements:** The ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as only US citizens are ... eligible for a security clearance ** Security Clearance:** DoD Clearance: Secret...You Must Have:** + Typically requires a Bachelor's in Science , Technology, Engineering, or Mathematics (STEM) and a minimum… more
    RTX Corporation (06/13/25)
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  • Power and Analog Principal Electrical…

    RTX Corporation (Marlborough, MA)
    …Status Requirements:** The ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as only US citizens are ... eligible for a security clearance ** Security Clearance:** DoD Clearance: Secret...given budget and schedule. + Present reviews of technical data to senior program or executive leadership, technical staff,… more
    RTX Corporation (06/07/25)
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  • Principal Systems Engineer

    RTX Corporation (Marlborough, MA)
    …Type:** Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** ** Security Clearance:** DoD Clearance: Secret At Raytheon, the foundation of ... responsible for statistical and numerical analysis of radar performance data + You will be responsible for analysis tool...You Must Have:** + Typically requires a Bachelor's in Science , Technology, Engineering, or Mathematics (STEM) and 8 years… more
    RTX Corporation (06/03/25)
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  • Principal Electrical Engineer (Onsite)

    RTX Corporation (Marlborough, MA)
    …citizens are authorized to access information under this program/contract. ** Security Clearance:** None/Not Required **Raytheon Company, Managed by Collins ... development **Qualifications You Must Have:** + Typically requires a degree in Science , Technology, Engineering or Mathematics (STEM)and a minimum of 8 years prior… more
    RTX Corporation (05/14/25)
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  • Graphics Software Engineer, Senior

    Qualcomm (Boxborough, MA)
    …Qualifications:** * Bachelor's degree in Applied Mathematics, Computer Science , Computer Engineering, Electrical Engineering, Software Engineering, or related ... work experience. OR Master's degree in Applied Mathematics, Computer Science , Computer Engineering, Electrical Engineering, Software Engineering, or related field… more
    Qualcomm (06/17/25)
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