• Scientist, Sr. Mechanical Engineer - Space…

    L3Harris (Wilmington, MA)
    …and cyber domains in the interest of national security. Job Title: Scientist, Sr. Mechanical Engineer - Space Optical Systems Job Code: 30813 Job Location: ... Job Description: L3Harris is seeking a highly skilled and dynamic senior Mechanical Engineer to perform design, development and analysis tasks which may include… more
    L3Harris (11/06/25)
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  • Lead, Mechanisms Mechanical Engineer (Space…

    L3Harris (Wilmington, MA)
    …and cyber domains in the interest of national security. Job Title: Lead, Mechanical Engineer - Mechanisms Job Code: 29834 Job Location: Wilmington, MA Job Schedule: ... Job Description: L3Harris is seeking a highly skilled and dynamic senior Mechanical Engineer to support customer-funded programs and internal research efforts within… more
    L3Harris (10/12/25)
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  • Lead, Structural Mechanical Engineer (Space…

    L3Harris (Wilmington, MA)
    …teams of engineers to perform mechanical analysis tasks on complex opto- mechanical systems and precision mechanisms in a program team environment. This ... cyber domains in the interest of national security. Job Title: Lead, Structural Mechanical Engineer Job Code: 29838 Job Location: Wilmington, MA Job Schedule: 9/80… more
    L3Harris (10/12/25)
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  • Lead, Thermal Mechanical Engineer (Space…

    L3Harris (Wilmington, MA)
    …hardware build, delivery and launch + Professional experience with thermal analysis of mechanical and electronic systems , in space, air or ground environments + ... in the interest of national security. Job Title: Lead, Mechanical Engineering - Thermal Analyst Job Code: 29892 Job...design including thermal design, analysis, and test of optical systems operating in harsh space and ground environments. The… more
    L3Harris (10/12/25)
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  • Director, Mechanical & Controls…

    Meta (Boston, MA)
    **Summary:** As the Mechanical & Controls Systems Engineering Director, you will lead, drive and execute on our strategy to engineer and design large-scale data ... impact-focused environment. Your responsibilities will include developing and executing our mechanical & controls systems engineering strategy, enabling the… more
    Meta (11/15/25)
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  • Sr. Mechanical Engineer HVAC Systems

    APTIM (Canton, MA)
    …+ A seasoned experienced professional with a full understanding of mechanical engineering resolving a wide range of issues in creative ways. ... + HVAC Equipment sizing and specifications, AHU's, DX Units, Chillers, Pumping systems , Cooling Towers, Boilers and Heat exchangers. + Broad application of… more
    APTIM (11/17/25)
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  • Senior Staff Engineer, Mechanical Design

    Celestica (Boston, MA)
    …New Hampshire City: Remote Employee US **Summary** The Senior Staff Engineer, Mechanical Design develops new mechanical systems /modules and maintains ... simulation software. Complete calculations and test, validate, and qualify their systems and make adjustments as needed. Provide support throughout the manufacturing… more
    Celestica (11/01/25)
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  • Senior Principal Mechanical Design Engineer

    RTX Corporation (Tewksbury, MA)
    …and development from early development through transition to production. + Lead the mechanical development of radar systems and components that achieve the ... more secure world. The Raytheon Hardware Engineering Organization leads the mechanical hardware design, development and production of radar, sonar, torpedo, and… more
    RTX Corporation (11/06/25)
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  • Principal Mechanical Engineer

    RTX Corporation (Marlborough, MA)
    …a security clearance **Security Clearance:** DoD Clearance: Secret The Radar Mechanical Design Department leads mechanical design, development, and integration ... radars in the world. This includes phased array radar systems , electronic modules, pedestals, and power and cooling ...support. We have an opportunity for an experienced Principal Mechanical Engineer to support our radar development programs. This… more
    RTX Corporation (11/13/25)
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  • Senior Mechanical Engineer

    Evolv Technology (Waltham, MA)
    … Engineering or related field + 10+ years of experience designing electro- mechanical products (consumer electronics, industrial, or security systems preferred) + ... The Elevator Pitch Imagine shaping the mechanical design behind technology that protects communities worldwide....ECOs, test plans). + Ensure compliance with Evolv's quality systems and product certification standards (UL, CE). + Contribute… more
    Evolv Technology (11/04/25)
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