Manager, Mechanical Engineering

Posted:
2/8/2026, 11:54:19 PM

Location(s):
Massachusetts, United States ⋅ Devens, Massachusetts, United States

Experience Level(s):
Senior

Field(s):
Mechanical Engineering

Workplace Type:
On-site

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 fusion company in the world.

Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team. 

If that’s you and this role fits, we want to hear from you.

Join the power movement as Manager, Mechanical Engineering

The Manager of Mechanical Engineering is a hands-on leader accountable for the design, fabrication, and performance of specialized manufacturing equipment and tooling. You will translate artistic and technical visions into actionable engineering plans, removing barriers to lead your team through the development of high-precision hardware for superconducting magnet production. You are responsible for cascading the creative vision, establishing technical excellence, and ensuring your team delivers robust mechanical solutions to meet our production scale-up targets.
#LI-Onsite

At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we’re eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.

We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.

This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.

Commonwealth Fusion Systems

Website: https://cfs.energy/

Headquarter Location: Cambridge, Massachusetts, United States

Employee Count: 51-100

Year Founded: 2017

IPO Status: Private

Last Funding Type: Grant

Industries: Clean Energy ⋅ Electrical Distribution ⋅ Energy ⋅ Environmental Engineering ⋅ Renewable Energy