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Commonwealth Fusion Systems

Project Engineering Manager

Join Commonwealth Fusion Systems in Devens, Massachusetts as a Project Engineering Manager. Lead construction engineering teams, manage work packages, and ensure quality in fusion energy projects. Enjoy competitive pay, equity, flexible vacation, and comprehensive benefits in a mission-driven environment.
Commonwealth Fusion Systems
Commonwealth Fusion Systems
Devens, Massachusetts, United States On-site Full time USD 110k–185k 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.


Last updated on Feb 23, 2026 | 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 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 Project Engineering Manager

Leading a team responsible for activities relating to design and construction engineering across all disciplines. Duties include working with engineering teams in the planning, sequencing, assembling, and issuing of construction Work Packages; development of installation specifications, 3D model coordination, interpreting design drawings and specifications, field verification of materials, monitoring construction progress, response to questions by constructors, providing direction in the field to ensure construction is in compliance with engineering documentation and developing handover packages to commissioning.

What you'll do

  • Direct technical oversight of construction contractors for all CFS systems
  • Own construction change management system
  • Report weekly construction progress and issues to project managers
  • Develop and maintain standards for construction work packages, specifications, and all other construction documentation across one or multiple projects
  • Interface with System Responsible Officers to maintain quality, schedule and budget for developing and executing engineered systems
  • Coordinate with engineering on constructability and design issues relating to plant systems
  • Identify the content of engineering document packages (Work Packages) required to support construction activities in the field
  • Plan, sequence, assemble, and issue construction Work Packages
  • Establish strong working relationships with the engineering teams responsible for the various process systems to facilitate conversion of engineering/design to physical plant
  • Oversee the maintenance of construction configuration management
  • Track, report, and forecast activities in the field
  • Coordinate with the Procurement Organization for field procured materials, material substitution, services, and equipment
  • Review material receiving reports and warehousing to assure delivery of correct materials
  • Coordinate the preparation of cost reports, forecasts, and progress reports
  • Coordinate with Field Supervision and Subcontractors to plan/support construction schedules
  • Recommend and implement procedures to ensure construction remains in compliance with the requirements of engineering and design
  • Ensure engineering and procurement provide timely delivery of drawings, materials, and equipment
  • Support the construction quality program
  • Support problem solving in the field and serve as liaison between Construction and Engineering
  • Support development and implementation of the Request for Information (RFI) process between Construction and CFS engineering
  • Develop turnover packages in accordance with defined system / sub-system breakdown
  • Track pending issues and actions impacting system turnover
  • Coordinate and facilitate system walkdowns
  • Review field generated inspection records for quality and completeness
  • Review field generated punch list items for quality and completeness and progress in project

What we're looking for

  • BS in Mechanical, Electrical, or other engineering discipline
  • Minimum 10 years in industrial plant design and construction environment
  • Knowledge of the process to engineer, design and construct complex industrial projects
  • Familiar with construction change management
  • Experience using 3D model
  • Knowledge of heavy industrial codes and standards
  • Good knowledge base across all construction disciplines (mechanical, electrical, instrumentation & Controls)
  • Excellent communication skills

Bonus points for

  • Experience leading a team of project or field engineers for large industrial construction projects
  • Certification in engineering management or construction management

Must-have requirements

  • Perform activities such as stooping, climbing, typing, standing, 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

$110,000 - $185,000 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.

Apply now

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About the role

March 20, 2026

Full time

Company

March 20, 2026

On-site

USD 110k–185k yearly

Hydrogen

Commonwealth Fusion Systems

cfs.energy

  •  Devens, Massachusetts, United States

Minimum 10 years in industrial plant design and construction environment

UTC-05:00