Rejobs
Commonwealth Fusion Systems

General Manager (m/w/d)

Become the General Manager at Commonwealth Fusion Systems in Devens, Massachusetts. Lead the SPARC Plant, ensuring timely operational milestones and building a high-performance team. Enjoy competitive compensation, equity, and generous benefits including flexible vacation days and professional growth opportunities.
Commonwealth Fusion Systems
Commonwealth Fusion Systems
Devens, Massachusetts, United States   Hybrid   Full Time   USD 275k–350k yearly  UTC-05:00

Commonwealth Fusion Systems

Company Overview

Commonwealth Fusion Systems (CFS)

Cambridge, MA, United States

2018

Approximately 430 employees (source: zoominfo.com). Revenue figures vary, with reports indicating $211.3 million or $31.7 million, though as a pre-revenue fusion developer focused on R&D, these may reflect funding or operations rather than sales.

What They Do

Commonwealth Fusion Systems (CFS) is a pioneering private fusion energy company that specializes in tokamak-based magnetic confinement fusion. Founded as a spinout from MIT's Plasma Science and Fusion Center, CFS focuses on utilizing high-temperature superconducting magnets to achieve commercial net energy production (source: cfs.energy). The company has made significant strides in its technology, particularly with the development of compact fusion machines that leverage decades of tokamak science. Their flagship projects, SPARC and ARC, aim to demonstrate net energy gain and commercial viability in the coming years (source: cfs.energy).

Projects & Track Record

CFS is currently engaged in several groundbreaking projects, most notably the construction of SPARC, which is set to be the world's first net-energy fusion machine. Located at their Fusion Energy Campus in Devens, Massachusetts, SPARC aims to demonstrate net energy gain by the late 2020s (source: cfs.energy). Additionally, CFS is planning the ARC project, a 400 MW-class grid-scale tokamak power plant designed for commercial deployment in the early 2030s. These projects are underpinned by significant technological advancements, including the successful testing of the central solenoid magnet module (CSMC) in November 2024, which confirmed the manufacturability of critical components for SPARC (source: zoominfo.com).

Recent Developments

In the past two years, CFS has made remarkable progress, including the opening of its Devens Fusion Energy Campus on February 10, 2023, which was attended by notable figures such as U.S. Secretary of Energy Jennifer Granholm (source: cfs.energy). The company has also secured substantial funding, raising $863 million in August 2024, building on a previous $1.8 billion round in May 2023, bringing total funding to over $2 billion (source: wbjournal.com). Furthermore, CFS announced its first commercial power plant site in Chesterfield County, Virginia, which will be independently financed and operated, with plans for grid connection in the early 2030s (source: zoominfo.com).

Working There

CFS offers a range of roles across various disciplines, including fusion science, engineering, manufacturing, and materials science. The majority of their workforce is based at the Devens campus, which has grown to over 430 employees (source: cfs.energy). The company culture emphasizes rapid execution and transparency, attracting top talent from the fusion and manufacturing sectors. Key executives include Co-Founder and CEO Bob Mumgaard, along with other leaders in operations and science, indicating a strong demand for expertise in tough tech and physics (source: nasdaqprivatemarket.com). While specific benefits are not detailed, the scale-up and investor backing suggest competitive packages for high-caliber roles in a mission-driven environment (source: cfs.energy). Job seekers are encouraged to monitor their careers page for openings related to SPARC and ARC advancements.

Contact


Last updated on 2026-01-02 | Report an issue

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 General Manager, SPARC Plant

In 2021, CFS demonstrated to the world its large-bore, high-temperature superconducting magnets. This technology unpins the toroidal field magnets being built into the SPARC tokamak at our headquarters in Devens, MA. The construction of plant systems is being completed, custom-engineered core tokamak components are being assembled and the tokamak control and measurements systems are being built and tested. CFS is looking to move SPARC from the design and building phase to commissioning and operation and use it to demonstrate commercially viable fusion energy. This leadership role has the mandate to run the first-of-a-kind SPARC facility, ensuring timely success of our net-energy demonstration and its further use to quickly inform the design of ARC. You will be responsible for maximizing facility uptime and ensuring a new normal of scientific and engineering progress from a major fusion facility. This will include building and leading a world-class team that operates SPARC, harnessing the knowledge and skills of both CFS staff and our worldwide partners. This is a once in a lifetime opportunity to be at the threshold of discovery and innovation, leading the team that will prove commercial fusion energy is achievable.

What you'll do

  • Oversee all aspects of the SPARC Plant, reporting to the CEO, to ensure timely achievement of SPARC's operational milestones
  • Lead, build, and mentor the entire SPARC Plant team, setting a tone for a safe, positive, collaborative, and high-performance culture
  • Coordinate with senior leadership across CFS to understand company priorities and ensure SPARC operations support planned and emerging strategic needs
  • Develop and manage the SPARC Plant's overall schedule, budget and staffing plans. Help teams balance needs for operations, repairs and enhancements using finite resources
  • Establish, improve and monitor metrics that will lead to efficient, and effective operation of an industrially-led fusion facility. Hold accountable people over a wide range of technical disciplines
  • Help develop external partnerships with the wider scientific community, utilizing leadership and communication skills to reach those outside of CFS

What we're looking for

  • Bachelor's degree in Engineering (e.g., Mechanical, Electrical, Nuclear), Physics, or a related technical field. A Master's, PhD, or MBA is highly desirable
  • 15+ years of progressive experience, with at least 8-10 years in a senior leadership role managing a complex, high-consequence technical facility (e.g., power plant, national laboratory, semiconductor fab, large-scale manufacturing). This includes a demonstrated ability to lead and manage a team of at least 200+ employees, including a mix of direct reports and managers
  • Extensive experience operating and maintaining large process systems, including but not limited to chemicals, cryogenics, oil/gas, or similar large-scale infrastructure
  • Robust technical knowledge of complex processes and electrical systems common in large facilities
  • Directed a $500M plus lab or research effort, from its initial scientific concept and development to the final construction and operational launch
  • Proven track record of building, leading, and mentoring high-performing technical and operational teams
  • Demonstrated experience in operational excellence, including developing and implementing novel processes, managing large budgets, and strategic resource planning
  • Exceptional leadership and communication skills, with the ability to inspire a team and articulate complex technical and strategic concepts to a wide variety of audiences
  • Strong people management skills of both small and large teams
  • Leadership, team-building, and mentoring skills for both engineers and technicians
  • Demonstration of the ability to build trust with front line employees and identify issues first hand
  • Ability to adapt to a rapidly changing environment
  • Strong attention to safety and the creation of a safety culture

Bonus points for

  • Experience with the commissioning and operation of first-of-a-kind systems or facilities is strongly preferred

Must-have requirements

  • Perform activities such as typing or sitting for extended periods of time
  • Willingness to occasionally travel or work required nights/weekends/on-call
  • 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

$275,000 - $350,000 a year

Salary range for this full-time position + equity + benefits

The actual salary will depend on level, location, qualifications, and experience. The range displayed on each job posting reflects new hire salaries for the position across all US locations. Benefits include:

  • Competitive compensation with equity
  • 13 Company-wide Holidays
  • Flexible vacation days
  • 10 sick days
  • Generous parental leave policy
  • Health, dental, and vision insurance
  • 401(k) with employer matching
  • Professional growth opportunities
  • Team-building activities

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.

Get Job Alerts

Get job alerts for opportunities in Devens, Massachusetts, United States

About the role

February 3, 2026

Full Time

Company

February 3, 2026

Hybrid

USD 275k–350k yearly

Commonwealth Fusion Systems

cfs.energy

  •  Devens, Massachusetts, United States

15+ years with at least 8-10 years in senior leadership

UTC-05:00

Apply now

Job expired?

Please let Commonwealth Fusion Systems know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!

Discover how you’re connected

View connections

See your contacts at Commonwealth Fusion Systems on LinkedIn to leverage your network in applying for this position.