About this role
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 we're working with policymakers, suppliers, and many others to build the energy industry of the future.
We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading 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 a Senior Manager, Mechanical Engineering
CFS is looking for a creative, experienced mechanical engineering manager to lead the design and delivery of the ARC vacuum vessel. Commonwealth Fusion Systems is currently designing the ARC fusion power plant. Within the ARC plant, the ARC tokamak consists of many large mechanical structures that support the large loads and extreme conditions of the fusion plasma. One of the newest and most interconnected components in ARC will be the vacuum vessel, a hundred-ton mechanical structure that surrounds the fusion plasma. This structure must withstand extreme heat fluxes on the plasma-facing side and effectively remove this heat via flowing molten salt on the other side of the vessel. This vessel must also be replaceable via a remote handling system during regular plant maintenance cycles. Come lead the design of a critical portion of the world's first fusion power plant!
Frequently Asked Questions
What is the salary for the Senior Manager, Mechanical Engineering — Vacuum Vessel role at cfsenergy?
The listed salary for this Senior Manager, Mechanical Engineering — Vacuum Vessel position at cfsenergy is USD 150K–225K. This is an Full time role.
Where is the Senior Manager, Mechanical Engineering — Vacuum Vessel position at cfsenergy located?
This Senior Manager, Mechanical Engineering — Vacuum Vessel role at cfsenergy is based in Devens, MA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Senior Manager, Mechanical Engineering — Vacuum Vessel role at cfsenergy full-time or part-time?
This is listed as a Full time position. It is posted as a Senior Manager, Mechanical Engineering — Vacuum Vessel role in the Mechanical Engineering department at cfsenergy.
Which team or department does the Senior Manager, Mechanical Engineering — Vacuum Vessel at cfsenergy belong to?
This Senior Manager, Mechanical Engineering — Vacuum Vessel position is part of the Mechanical Engineering department at cfsenergy. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior Manager, Mechanical Engineering — Vacuum Vessel position at cfsenergy?
Click the "Apply Now" button on this page. You will be redirected to cfsenergy's official application portal hosted on lever where you can submit your application directly.
When was the Senior Manager, Mechanical Engineering — Vacuum Vessel job at cfsenergy posted?
This Senior Manager, Mechanical Engineering — Vacuum Vessel position at cfsenergy was posted on Aug 24, 2026. Apply as soon as possible — early applications are often reviewed first.