Mechanical Engineer – Cable Magnets
Commonwealth Fusion SystemsDevens, Massachusetts
Full Time
Posted November 25, 2025
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Job Description
A Mechanical Engineer specializing in cable magnets, responsible for designing, analyzing, sourcing, testing, and supporting the fabrication of complex magnet components used in fusion energy systems, working closely with cross-functional teams to meet project requirements and demonstrate design objectives.
Key Responsibilities
- Design components supporting the primary magnet systems used to shape and drive plasma in the fusion device.
- Develop and refine mechanical designs through all stages of the product lifecycle, including CAD modeling and analysis.
- Support sourcing, vendor engagement, and fabrication processes such as composite layups, welding, forming, and machining.
- Assist in testing, production, and peer review activities to ensure design integrity and performance.
- Collaborate with cross-functional teams to ensure designs meet project requirements and broader organizational needs.
- Present design concepts and technical solutions to peers and leadership to demonstrate achievement of design objectives and resolve concerns.
Requirements
- A Bachelor's degree in Mechanical Engineering or a related technical field.
- Experience in designing mechanical components for systems operating in extreme environments such as high vacuum and near absolute zero temperatures.
- Proficiency in all stages of the product lifecycle including blank-page design, CAD modeling, analysis, sourcing, vendor support, testing support, production support, and peer review.
- Ability to design components that support primary magnet systems used to shape and drive plasma in fusion devices.
- Experience with fabrication methods including composite layups, welding, forming, and machining.
- Ability to work closely with teammates and peers on adjacent teams to ensure work meets project requirements and broader organizational needs.
- Experience presenting designs to peers and leadership, including executive leadership, to demonstrate that design objectives have been met and to resolve technical concerns.
- Compliance with U.S. laws concerning the export of controlled or protected technologies or information, specifically Export Control Laws.
- Willingness to work onsite at Commonwealth Fusion Systems facilities.
Benefits & Perks
Compensation/salary range (not specified in the posting)
Work schedule (onsite, fast-paced environment)
Work environment perks (collaborative team, opportunities to present to leadership, diverse perspectives encouraged)
Additional benefits (commitment to diversity and inclusion, compliance with export control laws)
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