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 Lead Assembly Technician
As a Lead Technician on the Assembly Team at CFS, you will be responsible for overseeing and organizing the small technician teams to conduct all assembly activities to construct the SPARC Tokamak. This includes the handling, alignment, and mechanical integration of large electromagnetic coils, vacuum vessels, instrumentation systems, support structures, tooling and manipulation equipment, diagnostic systems, and superconducting cable bundles, all together into a tightly packed and highly integrated central device. You will use your extensive experience in building and handling large equipment, structures, or plant systems to facilitate the efficient and high-quality completion of SPARC. You will organize the day-to-day work orders of the day per the schedule, assign technicians to each set of work, adjust as needed from previous work or issues, give morning briefs and shift hand-off reports, and overall guide all activity in the assembly work areas. During this you will work directly and collaboratively with the engineers, the metrology group, the quality group, and many other team-members to ensure correct and precise completion of the components and identify and help resolve issues as they arise during the build process. You will work with other technicians and leads, working in a dynamic and flexible workplace that shifts focus and priority as needed to meet the schedule to complete our next-generation tokamak device.
This role is truly a once in a lifetime opportunity to use your hands-on assembly skills to accelerate the development of fusion energy by ensuring SPARC is built on time and to high quality!
Weekday third shift (Monday–Friday, 10 p.m. – 6:30 a.m.)
Hourly pay + 15% Differential
\n#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 develops fusion energy systems using high-temperature superconducting (HTS) magnets to create compact tokamak reactors. It is building SPARC, a demonstration device designed to achieve net energy gain from fusion and laying the groundwork for ARC, a grid-connected fusion power plant targeting early 2030s operation. The company partners with MIT and manufactures its HTS magnets and related components, applying peer-reviewed science in its firewalling of plasma and reactor engineering. It has introduced innovations like the PIT VIPER superconducting cable to support pulsed-power magnet systems and accelerate readiness for commercial fusion.
Quality Engineer - Nights & Weekend Shifts + Differential Pay
Fiber Optic Specialist - Weekend - First Shift (Fri, Sat, Sun)
Fiber Optic Specialist - Third Shift
Fiber Optic Specialist - Weekend - Second Shift (Fri, Sat, Sun)
Lead Technician, Assembly Testing
Salary
$32 - $52
Location
Devens, MA
Total raised
$2.9B
Last stage
Series B
Investors
No applications, no recruiter spam. Just the intro.
A few questions to make sure this role is the right shape for you. Two minutes.
I write the intro, send it to the founder, and handle the back-and-forth.
If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.