Mid-Level Mechanical Engineer Jobs in Boston, MA

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Sr. Mechanical Engineer

Atlas Copco

•

Haverhill, Massachusetts, USA

Full-time

Senior Mechanical Engineer - PC Haverhill, MA (US) Edwards has been engineering environments where innovation thrives for more than 100 years. Our legacy is built on a willingness to push the boundaries of science - that's why we're a global leader of vacuum and abatement. Being part of Atlas Copco Group means we have thousands of employees around the world; this is your opportunity to work alongside passion, expertise, and with the latest technology to transform industries such as electronics,
Posted 10 days ago | Updated 4 hours ago

Senior Mechanical Engineer

Schneider Electric

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Andover, Massachusetts, USA

Full-time

We are seeking a Senior Mechanical Engineer (ME) to support our Transactional & Edge(T&E) NAM business to be based in Andover, MA. The candidate will help increase the mechanical engineering capacity and competence of the organization through training, mentorship, knowledge transfer, standardization, separation of work, and application of effective problem-solving techniques. The work is exciting and fun, pushing the technology envelope in an open, collaborative, and supportive environment. In t
Posted 45 days ago | Updated 4 hours ago

Principal Mechanical Engineer Lead - Tewksbury, MA (On-site)

RTX Corporation

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Tewksbury, Massachusetts, USA

Full-time

Date Posted: 2025-05-15 Country: United States of America Location: MA131: Tewksbury, MA Bldg 1 Assabet 50 Apple Hill Drive Assabet - Building 1, Tewksbury, MA, 01876 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - t
Posted 11 days ago | Updated 4 hours ago

Senior Research Mechanical Engineer - Major Industrial Equipment

FM

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Raynham, Massachusetts, USA

Full-time

FM is a leading industrial and commercial property insurer of the world's largest businesses, providing more than one-third of FORTUNE 1000-size companies with engineering-based risk management and property insurance solutions. FM helps clients maintain continuity in their business operations by drawing upon state-of-the-art loss-prevention engineering and research; risk management skills and support services; tailored risk transfer capabilities; and superior financial strength. To do so, we rel
Posted 2 days ago | Updated 19 hours ago

Principal Mechanical Engineer EAC & Proposal Lead

RTX Corporation

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Tewksbury, Massachusetts, USA

Full-time

Date Posted: 2025-04-28 Country: United States of America Location: MA131: Tewksbury, MA Bldg 1 Assabet 50 Apple Hill Drive Assabet - Building 1, Tewksbury, MA, 01876 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - t
Posted 21 days ago | Updated 4 hours ago

Senior Mechanical Engineer - Remote Maintenance

Commonwealth Fusion Systems

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Remote or Massachusetts, USA

Full-time

About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent and new technologies, we're designing and building commercially viable fusion power plants. And working with policymakers and suppliers to build the energy industry of the future. We're in the best position to make it happen. Since 2018, we've raised over $2 billion in capital - more than any other fusion energy company in th
Posted 60+ days ago | Updated 4 hours ago

Senior Mechanical Engineer

Pond & Company

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Remote or Peachtree Corners, Georgia, USA

Full-time

About the Position We are seeking a Senior Mechanical Engineer to join our growing Professional Design Services team in either one of the following Pond offices (Atlanta, GA; Augusta, GA; Savannah, GA; Jacksonville, FL; Tempa, FL; Port Orange, FL; Columbia, SC; Charlotte, NC; Huntsville, AL; Mobile, AL; New Orleans, LA) or as a Remote Employee. The ideal candidate possesses 10+ years of related MEP design engineering experience and wants to grow, collaborate, and innovate. In this position, the
Posted 60+ days ago | Updated 4 hours ago

Senior Mechanical Engineer 2 - Nuclear

Sargent & Lundy LLC.

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Remote

Full-time

Description You will be involved in nuclear power plant systems design, including preparation or review of: Modification packages for operating nuclear power plantsFunctional mechanical drawings and/or drawings for nuclear power plant systemsEngineering analyses and evaluations to support modifications and operation of plant systemsTechnical specifications and procurement documents for plant equipmentVendor bid evaluations for plant equipmentStudies and options evaluations for modifications to
Posted 5 days ago | Updated 4 hours ago

Sr. Mechanical Engineer, Structures

Lockheed Martin Corporation

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Remote or Littleton, Colorado, USA

Full-time

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutio
Posted 11 days ago | Updated 4 hours ago

Senior Mechanical Engineer 1 - Government Services

Sargent & Lundy LLC.

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Remote

Full-time

Description Sargent & Lundy's Government Services Division provides cutting-edge engineering and consulting to the management and operating contractors for the US Department of Energy (DOE) and the National Nuclear Security Administration (NNSA). What does this mean? You can be a part of multi-discipline teams developing and designing facilities, systems, and equipment for the nation's major research laboratories and the legacy nuclear weapons production complex. This critical engineering work
Posted 9 days ago | Updated 4 hours ago

Loads and Dynamics Analyst Senior Mechanical Engineer

Lockheed Martin Corporation

•

Remote or King of Prussia, Pennsylvania, USA

Full-time

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutio
Posted 3 days ago | Updated 4 hours ago

Senior Mechanical Engineer - Patriot PAC-2 Canister

RTX Corporation

•

Massachusetts, USA

Full-time

Date Posted: 2025-05-21 Country: United States of America Location: RMA99: RTN Remote, Massachusetts Position Role Type: Remote U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation and allies defend freedoms and deter aggression. We bring t
Posted 3 days ago | Updated 4 hours ago

Lead Mechanical Engineer 1 - Nuclear

Sargent & Lundy LLC.

•

Remote

Full-time

Description You will be involved in nuclear power plant systems design, including preparation or review of: Modification packages for operating nuclear power plantsFunctional mechanical drawings and/or drawings for nuclear power plant systemsEngineering analyses and evaluations to support modifications and operation of plant systemsTechnical specifications and procurement documents for plant equipmentVendor bid evaluations for plant equipmentStudies and options evaluations for modifications to
Posted 21 days ago | Updated 4 hours ago

Senior Mechanical Engineer 1 - Nuclear

Sargent & Lundy LLC.

•

Remote

Full-time

Description This is a senior level mechanical engineering position that will provide you with a variety of interesting and challenging responsibilities. We are looking for candidates with experience in the analysis, design, and licensing requirements of mechanical and nuclear systems and components for nuclear power plants. You will be involved in nuclear power plant systems design, including preparation or review of: Modification packages for operating nuclear power plantsSystem and Componen
Posted 23 days ago | Updated 4 hours ago

Mechanical Engineer Sr

Lockheed Martin Corporation

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Remote or Englewood, Colorado, USA

Full-time

Job Description As we enter a new era of Strategic Weapon Systems, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing men and women are on a mission to make a difference in the world and every single day we use our unique skills, talents and experiences to design and build solutions to some of the world's hardest engineering problems. Do you want to be part of a culture that inspires employees to envision the impossible, perform with excellence and build incredible produc
Posted 5 days ago | Updated 4 hours ago

Lead Mechanical Engineer 1 (Power Uprates) - Nuclear

Sargent & Lundy LLC.

•

Remote

Full-time

Description Our electric power generation clients are seeking to increase the power output of their existing power plants to meet the electric demands. This is expanding work in the nuclear industry. You will work on major systems, equipment and plant process in the following areas: Perform consulting level work for power uprates in the nuclear industry.Interface with clients and project teams to present technical discussions and project status.Develop engineering proposals and cost estimates.M
Posted 23 days ago | Updated 4 hours ago

Lead Mechanical Engineer -- Owner's Engineering Support

Sargent & Lundy LLC.

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Remote

Full-time

Description Your responsibilities will include, but are not limited to: You will help develop conceptual and detailed designs for new power generation with an emphasis on gas turbine based simple and combined cycle facilities.You will be responsible for leading the Mechanical Engineering design efforts for a team of junior and senior engineers and designers.You will work on challenging assignments that include investigating, trouble-shooting, and solving a wide variety of mechanical engineering
Posted 23 days ago | Updated 4 hours ago

Senior Mechanical Engineer Analyst 1 (Power Uprates) - Nuclear

Sargent & Lundy LLC.

•

Remote

Full-time

Description This will be a remote Mechanical Analysis position to support Power Uprates. Our electric power generation clients are seeking to increase the power output of their existing power plants to meet the electric demands. This is expanding work in the Mechanical Analysis Engineering group. You will work on major systems, equipment, and plant process in the following areas: Develop and lead licensing basis system and component evaluations for nuclear power uprate projects.This position w
Posted 23 days ago | Updated 4 hours ago

Mechanical Engineer Project Lead

Lockheed Martin Corporation

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Remote or Cape Canaveral, Florida, USA

Full-time

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutio
Posted 3 days ago | Updated 4 hours ago

Mass Properties Engineer Sr - Mechanical Engineer

Lockheed Martin Corporation

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Remote or King of Prussia, Pennsylvania, USA

Full-time

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutio
Posted 46 days ago | Updated 4 hours ago