
Real job — pulled straight from CommonwealthFusion’s careers page · Verified August 29, 2026 · No reposts.
Job description
CommonwealthFusion is hiring a Senior Mechanical Engineer — a full-time, based in Devens, MA role. Apply directly on CommonwealthFusion's careers page below.
Senior Mechanical Engineer – Cable Magnets
Team: HTS Magnet Engineering
Location: Devens, MA
Commitment: Full-time
Workplace Type: hybrid
Salary:
What you'll do:
- 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
- Mentor junior engineers and assist in establishing and implementing engineering best practices
What we're looking for:
- Bachelor’s degree in mechanical engineering, aerospace engineering, or another relevant field
- A minimum of 7 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 (required)
Familiarity with all steps in the design process with an emphasis on creativity, simplicity, and execution (required) - Be self-motivated, committed to self-growth, and exhibit excellent problem-solving skills (required)
- CAD proficiency (required) NX preferred, any acceptable
- FEA (required) ANSYS and COMSOL preferred
- Expertise in AMSE Y14 GD&T principles (preferred)
Bonus points for:
- Demonstrated record of design of mechanical components beyond desktop scale. E.g. high power (MW+), high mass (ton+), high force (MN+)
- Experience in production or heavy equipment assembly environments
- Design experience with
Electromagnets
Vacuum systems
Welding
Composite materials
Radiation environments
Cryogenic environments
Must-have requirements:
- 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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Frequently asked questions
What skills are required for Senior Mechanical Engineer at CommonwealthFusion?
The required skills for Senior Mechanical Engineer at CommonwealthFusion include: Mechanical Engineering, ANSYS, Welding.
What is the seniority level for Senior Mechanical Engineer at CommonwealthFusion?
Senior Mechanical Engineer at CommonwealthFusion is a Senior level position.
How do I apply for Senior Mechanical Engineer at CommonwealthFusion?
You can view the full description and apply for Senior Mechanical Engineer at CommonwealthFusion on EchoJobs: https://echojobs.io/job/commonwealthfusion-senior-mechanical-engineer-cable-magnets-4o4k8.