Commonwealth Fusion Systems
The Principal Mechanical Engineer will lead the end-to-end design, integration, and validation of advanced thermal vacuum R&D equipment, driving innovative architecture while ensuring procedural discipline and high-performance hardware. The role involves defining system requirements, conducting design reviews, collaborating with cross‑functional teams, and mentoring engineering staff in a fast‑paced, on‑site environment.
Headquarters
Devens, Massachusetts, United States
Company Size
501-1000 employees
Founded
2018
Commonwealth Fusion Systems is a clean energy company developing fusion power technology, including high-temperature superconducting magnets and fusion power plants.
Commonwealth Fusion Systems Accelerates Commercial Fusion With Siemens and NVIDIA, Leveraging AI-Powered Digital Twins
Jan 6, 2026
Commonwealth Fusion Systems, Siemens, Nvidia To Develop Fusion Digital Twin
Jan 3, 2026
Commonwealth Fusion Systems Raises $863 Million Series B2 Round to Accelerate the Commercialization of Fusion Energy
Aug 28, 2025
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
View leadership team, funding history,
and employee contacts for Commonwealth Fusion Systems.
72% above the average for this role
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