• Principal Manufacturing

    Mercury Systems (Hudson, NH)
    …group, a leading provider of mission-critical avionics and display system solutions. The principal manufacturing engineer works on behalf of Mercury Systems ... Mercury Systems is seeking the world's best and brightest engineer to provide support as part of the ...initiatives + Training production floor on the use of manufacturing equipment + Evaluating and implementing new equipment +… more
    Mercury Systems (11/05/25)
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  • Principal Manufacturing Software…

    BAE Systems (Nashua, NH)
    …talent, motivation, and vision to join our team. We are seeking an experienced Principal Manufacturing Software Engineer to lead our team's software ... Other incentives may be available based on position level and/or job specifics. ** Principal Manufacturing Software Engineer ** **118081BR** EEO Career Site… more
    BAE Systems (11/05/25)
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  • Principal Test Software Engineer

    BAE Systems (Nashua, NH)
    …control technologies for precision munitions, and we have a place for you as a Principal Test Software Engineer at our Nashua or Hudson New Hampshire facility. ... We are looking for a talented Principal Software Engineer to help us create...attention to detail + Experience in US defense industry manufacturing operations is highly desirable for this position +… more
    BAE Systems (12/19/25)
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  • Principal Opto-Mechanical Engineer

    BAE Systems (Merrimack, NH)
    **Job Description** BAE Systems is seeking a proactive Principal Mechanical Engineer with analytical capabilities and demonstrated technical expertise. This ... the product life cycle. This includes concept development, detail design, qualification, manufacturing transition, and production support. The engineer will be… more
    BAE Systems (12/25/25)
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  • Principal Mechanical Engineer

    BAE Systems (Nashua, NH)
    **Job Description** BAE Systems is seeking a seasoned Principal Mechanical Engineer to lead a team of mechanical engineers and to be a subject matter expert in ... incentives may be available based on position level and/or job specifics. ** Principal Mechanical Engineer (Design/Analysis)** **117597BR** EEO Career Site Equal… more
    BAE Systems (10/22/25)
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  • Senior Principal Optical Engineer

    BAE Systems (Manchester, NH)
    **Job Description** BAE Systems is currently looking for a talented **Senior Principal Optical Engineer ** to join our **EO/IR Capability Group** . This group ... a variety of product areas for government and commercial applications. The **Senior Principal Optical Engineer ** will develop and mature advanced EO system… more
    BAE Systems (11/19/25)
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  • Principal Product Design Engineer

    ThermoFisher Scientific (Tewksbury, MA)
    …includes a drug screening. **Key Responsibilities and Functions:** + Serve as the Principal Product Build Engineer on multi-functional product teams. You will ... of Build for Manufacturability (DFM), Build for Assembly (DFA), Lean Manufacturing , and whole product, cradle-to-grave thinking. Deliver feasible and readily… more
    ThermoFisher Scientific (12/06/25)
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  • Senior Principal Mechanical Engineer

    BAE Systems (Merrimack, NH)
    **Job Description** BAE Systems is seeking a Senior Principal Mechanical Engineer to join our team in Merrimack, New Hampshire! We Protect Those Who Protect Us ... incentives may be available based on position level and/or job specifics. **Senior Principal Mechanical Engineer - Hybrid** **119220BR** EEO Career Site Equal… more
    BAE Systems (12/11/25)
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  • Principal Electrical Engineer

    BAE Systems (Nashua, NH)
    **Job Description** BAE Systems is seeking a Principal Electrical Engineer to join our team in southern New Hampshire! We Protect Those Who Protect Us is our ... incentives may be available based on position level and/or job specifics. ** Principal Electrical Engineer ** **119241BR** EEO Career Site Equal Opportunity… more
    BAE Systems (12/11/25)
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  • ADGE Sr Principal Mech Engineer

    RTX Corporation (Tewksbury, MA)
    …security clearance **Security Clearance:** DoD Clearance: Secret **Title: ADGE Sr Principal Mechanical Engineer (On-Site)** **Job Description:** **The Air ... hardware integration, and interconnects.** **We are seeking a motivated and driven Senior Principal Mechanical Engineer to join our Ground Equipment Design Team.… more
    RTX Corporation (12/24/25)
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  • Principal Software Engineer

    BAE Systems (Nashua, NH)
    …This specific role is to join our Digital Architecture Team as a Principal Software Engineer . Typical responsibilities for this role include: + Architecting, ... incentives may be available based on position level and/or job specifics. ** Principal Software Engineer ** **119554BR** EEO Career Site Equal Opportunity… more
    BAE Systems (12/24/25)
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  • Principal Test Development Engineer

    RTX Corporation (Tewksbury, MA)
    …that create a safer, more secure world. Raytheon is currently seeking a ** Principal Test Equipment Design Engineer ** to join the **Sensor Test Solutions** ... through its development cycle, from requirements definition through deployment at manufacturing or customer facilities. These test capabilities may span disciplines… more
    RTX Corporation (12/12/25)
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  • Principal Electrical Engineer

    BAE Systems (Manchester, NH)
    **Job Description** BAE Systems is hiring for a Principal Electrical Engineer . At BAE Systems, we deliver a full range of products and services for air, land and ... incentives may be available based on position level and/or job specifics. ** Principal Electrical Engineer Digital Design** **118524BR** EEO Career Site Equal… more
    BAE Systems (11/19/25)
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  • Senior Principal MMIC Design…

    BAE Systems (Nashua, NH)
    …Come build your career with BAE Systems. BAE Systems is seeking a Senior Principal MMIC Design Engineer to join the Microelectronics Center located in Nashua, ... incentives may be available based on position level and/or job specifics. **Senior Principal MMIC Design Engineer (Hybrid)** **117882BR** EEO Career Site Equal… more
    BAE Systems (10/29/25)
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  • Drug Product Principal Process…

    PCI Pharma Services (Bedford, NH)
    …and shape the future of PCI. We're looking for a **hands-on, highly skilled Principal Process Engineer ** to lead complex engineering projects from concept to ... installation, and start-up of new plant utilities, equipment, and systems. + ** Engineer for Excellence** - Optimize performance of packaging equipment and … more
    PCI Pharma Services (11/11/25)
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  • ADGE Principal Mechanical Engineer

    RTX Corporation (Tewksbury, MA)
    …integration, and system interconnects. We are currently seeking a motivated and driven Principal Mechanical Engineer to join our Ground Equipment Design Team. ... manufacturing processes. Proficiency in CAD design tools, specifically Pro/ ENGINEER (ProE) and CREO, including Large Assembly Management. Familiarity with… more
    RTX Corporation (12/24/25)
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  • Principal Systems Engineer

    BAE Systems (Hudson, NH)
    …incentives may be available based on position level and/or job specifics. ** Principal Systems Engineer ** **118585BR** EEO Career Site Equal Opportunity Employer. ... of EW systems across multiple business areas. As team engineer level contributor, you will be responsible for and...onsite in a laboratory environment. 6. Ability to support manufacturing issues and working with quality engineers for path… more
    BAE Systems (11/21/25)
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  • Principal Hardware Design & Test…

    RTX Corporation (Tewksbury, MA)
    …and lifecycle support of Raytheon products. This position is for a multi-disciplined ** Principal Hardware Design & Test Engineer .** Principal Hardware Design ... and subsystem levels. + Transition to production and technical support to manufacturing and test engineers. + Lead small project or processes improvements within… more
    RTX Corporation (10/19/25)
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  • Senior Principal Thermal Engineer

    Oracle (Concord, NH)
    **Job Description** As a Senior Principal Thermal Engineer , you will focus on the alignment of OCI thermal hardware design with specific experience in Rack ... solutions. + Lead liquid cooling server/ rack designs to support engineering lab and manufacturing tests + Aware of latest fluid cooling industry road map and key… more
    Oracle (11/25/25)
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  • Senior Principal Mechanical Design…

    RTX Corporation (Tewksbury, MA)
    …and production support. Mechanical Engineering is searching for an experienced Senior Principal Design Engineer to work in the Radar Design Department. ... a broad range of technical disciplines which include engineering, manufacturing , technical services, materials, processes, analysis, test, and documentation. The… more
    RTX Corporation (11/06/25)
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