Commonwealth Fusion Systems (CFS) is on a mission to deliver clean fusion energy to the planet fast enough to matter for humanity’s biggest challenges.
It’s urgent. The gap between the energy we need and the energy we have is widening every day. Fusion is a critical part of the energy transition away from fossil fuels, a new chapter for the world’s energy supply.
We’re committing to delivering fusion power plants and a full-fledged fusion energy industry as we’ve delivered on other promises. Like the world’s strongest high-temperature superconducting magnet, the game-changing technology that’s making commercial fusion energy a reality.
We’ve raised over $2 billion in capital — more than any other fusion energy company — and attracted top talent to design, build, and deliver commercial fusion power plants. And we’re working with policymakers and suppliers to make fusion energy available globally.
As we push toward the fusion-energy future, we’ll keep setting and meeting milestones, sharing and validating our progress, and encouraging others to do the same.
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 an Field Assembly Manager
The Field Assembly Manager – Third Shift is responsible for leading and coordinating overnight assembly operations supporting the development and production of a first-of-its-kind fusion tokamak. This position provides hands-on leadership to a highly skilled workforce and oversees the activities of three union trades: Millwrights, Welders, and Electricians.
The Field Assembly Manager will ensure that work is executed safely, efficiently, and in accordance with engineering requirements, quality standards, production schedules, and established work instructions. This role requires a strong manufacturing leader who can effectively coordinate multiple skilled trades while working closely with Engineering, Quality, Safety, Supply Chain, and day-shift leadership.
Because the organization is building advanced fusion technology, this position requires a leader who is comfortable operating in an environment where processes are continually being developed, refined, and improved. The successful candidate will be highly visible on the production floor, capable of making sound decisions in real time, and skilled at removing obstacles to keep critical assembly activities moving forward
Hours: 11:00 pm - 7:30 am
Salary + 15% differential
#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.
What you'll do:
Night Shift Production Leadership
Lead third shift assembly operations supporting tokamak construction and integration
Provide direct supervision and coordination of Millwright, Welding, and Electrical union activities
Establish priorities for the shift based on the overall production schedule and critical-path activities
Ensure work is properly staffed, sequenced, and executed to meet daily and weekly production objectives
Monitor production progress throughout the shift and proactively address delays, constraints, and resource issues
Conduct shift-start meetings and communicate priorities, safety concerns, schedule requirements, and changes in work scope
Maintain strong communication and handoff between day and night shifts
Provide detailed shift reports documenting progress, issues, downtime, quality concerns, and outstanding work
Skilled Trades Coordination
Coordinate work across Millwright, Welding, and Electrical trades to ensure activities are properly sequenced and do not interfere with one another
Resolve conflicts between trades and establish clear priorities when multiple activities compete for resources or workspace
Work closely with union leadership and shop stewards to ensure effective execution of work while maintaining positive labor relationships
Verify that employees are assigned work appropriate to their trade, qualifications, and training
Ensure work areas are properly prepared before releasing work to the appropriate trade
Coordinate equipment, tooling, materials, permits, and technical information required to complete assigned work
Advanced Tokamak Assembly
Supervise high-precision mechanical, electrical, structural, and welded assembly activities associated with the tokamak
Ensure assembly work is performed according to engineering drawings, specifications, procedures, and approved work instructions
Coordinate installation and integration of complex components, systems, and subsystems
Work closely with Engineering when drawings, specifications, procedures, or field conditions require clarification.
Identify installation issues and escalate technical problems appropriately
Support the development and continuous improvement of assembly processes and standard work
Maintain a strong focus on configuration control and ensure unauthorized modifications are not made to engineered systems
What we’re looking for:
Bachelor’s degree in Engineering, Manufacturing, Operations, or a related field preferred; equivalent manufacturing leadership experience will be considered
5+ years of experience in a complex manufacturing, assembly, construction, or industrial environment
Strong understanding of mechanical, welding, electrical, and industrial assembly processes
Ability to read and interpret engineering drawings, specifications, and work instructions
Strong understanding of industrial safety practices, including Lockout/Tagout
Bonus points for:
- Previous supervisory or leadership experience managing skilled trades strongly preferred.
- Experience working with unionized workforces
- Experience working in a high-precision or highly engineered manufacturing environment
- Experience with Lean manufacturing and continuous-improvement methodologies
- Strong computer skills and experience with ERP, MES, scheduling, or production-management systems
Must-have requirements:
Ability to occasionally lift up to 50 lbs
Perform activities such as stooping, climbing, typing, standing, or sitting for extended periods of time
Work in a facility that contains industrial hazards including heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics
Willingness to travel or work required nights/weekends/on-call occasionally
