Mechanical Engineer – Cable Magnets
Commonwealth Fusion SystemsDevens, MA
Full Time
Posted August 24, 2026
$90k - $145k
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Job Description
About Commonwealth Fusion Systems:
Key Responsibilities
- Act autonomously as the primary owner of cable magnet hardware for SPARC, ARC, or other projects, ensuring designs are completed, validated, procured, built, and installed correctly and on time
- Produce new and iterate on existing design concepts, using a deep understanding of physics, structural mechanics, and analysis techniques for both metallics and composites
- Liaise with partner teams such as R&D, analysis, manufacturing, and procurement to drive completion of program milestones in a timely fashion
- Diagnose issues on the production and assembly line and provide immediate path forward based on known understanding of hardware. Propose and implement design solutions based on root cause
- Prepare reports, presentations, and other documentation to serve as design documentation and validation of final Cable Magnet systems
Requirements
- Bachelor’s degree in mechanical engineering, aerospace engineering, or another relevant field
- A minimum of 5 years of engineering design and analysis experience is required, including at least 2 years providing engineering support to production hardware in the form of resolving technical issues and implementing design for manufacturing or assembly changes
- Relevant hands-on experience in the form of parts designed for high loads and/or extreme environments
- Excellent fundamental knowledge of mechanical systems such as static structures and heat transfer Familiarity with all steps in the design process with an emphasis on creativity, simplicity, and execution
- Be self-motivated, committed to self-growth, and exhibit excellent problem-solving skills
- CAD proficiency (required) NX preferred, any acceptable
- FEA (required) ANSYS and COMSOL preferred
- Perform activities such as sitting for extended periods of time
- Work in a facility that contains industrial hazards including heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics
- Perform activities such as sitting for extended periods of time
- Occasional travel, occasional nights/weekends/on-call
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