Diagnostician
cfsenergy· Tokamak Systems
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 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 a Diagnostician
Commonwealth Fusion Systems is assembling the high-field SPARC tokamak, which aims to be the first magnetic fusion device to achieve net fusion energy, and is predicted to be able to achieve high gain and fusion power up to 140MW. We are completing the design and beginning the assembly and installation of diagnostic systems that will be used to control the plasma and deliver the scientific data necessary to complete the design of ARC. These include approximately 40 sub-systems covering magnetics, interferometry, neutral pressure, x-ray to visible spectroscopy, camera imaging, bolometry, neutrons, Thomson scattering, electron cyclotron emission, reflectometry, Langmuir probes and structural temperature and strain sensing. A more detailed overview can be found at: https://pubs.aip.org/aip/rsi/article/95/10/103518/3317155.
CFS is looking to grow the SPARC team in order to complete back-end design and move diagnostics through fabrication, assembly, commissioning and utilization. Presently the diagnostics team has enough expertise to support all major diagnostic systems, but we are looking to add a generalist who has experience in multiple diagnostics to ensure our team can deliver measurements on SPARC’s fast timeline. Candidates will work as part of an integrated diagnostic team along with MIT-PSFC partners and fusion community collaborators from around the world to demonstrate net energy from a tokamak for the first time. CFS encourages applications from both senior and early career fusion scientists and those interested in cross-industry career changers to help us build a diverse team to meet our mission goals.
Frequently Asked Questions
What is the salary for the Diagnostician role at cfsenergy?
The listed salary for this Diagnostician position at cfsenergy is USD 110K–185K. This is an Full time role.
Where is the Diagnostician position at cfsenergy located?
This Diagnostician 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 Diagnostician role at cfsenergy full-time or part-time?
This is listed as a Full time position. It is posted as a Diagnostician role in the Tokamak Systems department at cfsenergy.
Which team or department does the Diagnostician at cfsenergy belong to?
This Diagnostician position is part of the Tokamak Systems department at cfsenergy. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Diagnostician 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 Diagnostician job at cfsenergy posted?
This Diagnostician position at cfsenergy was posted on Mar 5, 2026. Apply as soon as possible — early applications are often reviewed first.
Diagnostician
cfsenergy · 💰 USD 110K–185K
You'll be redirected to cfsenergy's official application page on Lever.