Sr. Mechanical Engineer jobs in Massachusetts

Stoughton, Massachusetts

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Today

JOB TITLE: Senior Mechanical Engineer JOB LOCATION: Stoughton, MA WAGE RANGE*: $150,000.00-160,000.00 JOB NUMBER: 25-03648 REQUIRED EXPERIENCE: 5-10 years JOB DESCRIPTION Senior Mechanical Engineer - Will work closely with a multidisciplinary team to facilitate the design, analysis, and manufacture of rotating industrial machinery and ASME code-stamped pressure vessels for a wide range of customers at the forefront of today's process technologies. This position requires in-depth knowledge of

Full-time

USD 150,000.00 - 160,000.00 per year

Senior Mechanical Engineer

Massachusetts

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Today

Company Overview We are a world-class team of professionals who deliver next generation technology and products in robotic and autonomous platforms, ground, soldier, and maritime systems in 50+ locations world-wide. Much of our work contributes to innovative research in the fields of sensor science, signal processing, data fusion, artificial intelligence (AI), machine learning (ML), and augmented reality (AR). QinetiQ US's dedicated experts in defense, aerospace, security, and related fields a

Full-time

Senior Mechanical Engineer

Remote

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Today

Senior Mechanical Engineer Our Bethesda Office is looking for a Sr. Mechanical Engineer with design experience in HVAC. You will be providing engineering design, evaluation, and planning of mechanical systems for healthcare, science & technology, education, and commercial projects. At Salas O'Brien we tell our clients that we're engineered for impact. This passion for making a difference applies just as much to our team as it does to our projects. That's why we're committed to living our values

Full-time

USD 150,000.00 - 165,000.00 per year

Senior Mechanical Engineer

Remote

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Today

Description This is a remote/virtual position. Candidate can be based anywhere within the United States. Overview: Sargent & Lundy Consulting (SLC) works on behalf of clients to support electric power projects. We evaluate and optimize technical, commercial, environmental, and financial aspects of the projects for a variety of clients. Responsibilities: In this role, you will provide development support, conceptual design and owner's engineer services to clients including performing technical

Full-time

USD 95,840.00 - 147,870.00 per year

Senior Mechanical Engineer 1 - Nuclear

Remote

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Today

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

Full-time

USD 82,380.00 - 125,860.00 per year

Senior Mechanical Engineer (Auxiliary)

Remote or Baltimore, Maryland

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Today

Overview AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. Responsibilities Design, develop and evaluate operation of marine vessels, shipboard auxiliary systems and piping, review and develop technical data packages, provide oversight on development of machinery arrangements, conduct a

Full-time

USD 91,600.00 per year

Senior Mechanical Engineer 2 - Nuclear

Remote

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Today

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

Full-time

USD 95,840.00 - 147,870.00 per year

Senior Mechanical Engineer Analyst 1 (Power Uprates) - Nuclear

Remote

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Today

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

Full-time

USD 82,380.00 - 125,860.00 per year

Senior Mechanical Engineer

Marlborough, Massachusetts

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Today

Date Posted: 2025-09-09 Country: United States of America Location: MA802: Marlborough, MA Building 1 1001 Boston Post Road Building 1, Marlborough, MA, 01752 USA Position Role Type: Onsite 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 nati

Full-time

USD 82,000.00 per year

Senior Mechanical Engineer (ONSITE)

Marlborough, Massachusetts

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Today

Date Posted: 2025-10-07 Country: United States of America Location: MA802: Marlborough, MA Building 1 1001 Boston Post Road Building 1, Marlborough, MA, 01752 USA Position Role Type: Onsite 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 Raytheon Company, Managed by Collins Aerospace Collins Aerospace, an RTX company, is a world leader in advance

Full-time

USD 82,000.00 per year

Senior Mechanical Engineer - Structural Analysis

Tewksbury, Massachusetts

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Today

Date Posted: 2025-08-19 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: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: Secret - Current At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our n

Full-time

USD 82,000.00 per year

Senior Mechanical Engineer - Liquid Cooling

Littleton, Massachusetts

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Today

Job Posting Start Date 10-16-2025 Job Posting End Date At JetCool, a Flex company, we're at the forefront of liquid cooling innovation, delivering advanced solutions that empower our partners in AI and high-performance computing. United by a shared purpose, our teams are pushing the limits of what's possible and tackling complex challenges. A career at JetCool offers the opportunity to make a real impact by helping build smarter, more sustainable data centers. Together, we're not just advancin

Full-time

USD 104,100.00 - 143,100.00 per year

Sr Mechanical Engineer - Patriot Canister (Remote)

Remote or Tewksbury, Massachusetts

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Today

Date Posted: 2025-09-18 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: Remote 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: Confidential At Raytheon, the foundation of everything we do is rooted in our values and a higher calli

Full-time

USD 82,000.00 per year

Senior Mechanical Engineer - HTS Magnet Feeder System

Massachusetts

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Today

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 nearly $3 billion in capital, making us the largest and leading private fus

Full-time

USD 110,000.00 - 185,000.00 per year

Senior Mechanical Engineer

Boston, Massachusetts

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Today

To reinvent an industry, you have to build the best team. Join Formlabs if you want to bring groundbreaking professional 3D printers to the desktops of every designer, engineer, researcher, and artist in the world. We're excited to build devices that perform remarkably, create beautiful parts, and reflect careful user experience design. You will be architecting, prototyping, building, and designing the hardware systems of our next-generation 3D printers. You will be responsible for key system d

Full-time

Senior Mechanical Engineer

Somerville, Massachusetts

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Today

Full-time

Senior Mechanical Engineer - Tewksbury, MA

Tewksbury, Massachusetts

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Today

Date Posted: 2025-09-11 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: 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

Full-time

USD 82,000.00 per year

Senior Mechanical Engineer - Interconnects

Tewksbury, Massachusetts

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Today

Date Posted: 2025-08-11 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: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret The Raytheon Air Defense Ground Equipment (ADGE) department is looking for a full-time Senior Mechanica

Full-time

USD 82,000.00 per year

Senior Mechanical Engineer - Energy Solutions - CMTA

Boston, Massachusetts

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Today

CMTA, a Legence company CMTA is one of the fastest growing engineering firms in the U.S., with nationally recognized expertise in sustainable, high-performance building engineering. We are a collaborative, innovative, and energetic team that leverages a data-driven, holistic approach to consulting engineering, performance contracting, and zero energy projects. We focus on finding engineers whose skills and personalities drive them to excel, fostering a workplace that provides unparalleled growth

Full-time

ADGE Senior Mechanical Engineer (On-Site)

Tewksbury, Massachusetts

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Today

Date Posted: 2025-09-13 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: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret Department Overview: The Air Defense Ground Equipment Mechanical Design Department is responsible for

Full-time

USD 82,000.00 per year

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Sr. Mechanical Engineer jobs in Massachusetts, USA