Commonwealth Fusion Systems

Hiring day for production technicians: nights & weekend shifts + differential pay

Join Commonwealth Fusion Systems in Devens, Massachusetts as a production technician working nights and weekends with pay differentials. This role involves building advanced fusion energy hardware with competitive pay, benefits, and equity. Enjoy flexible vacation, health insurance, and professional growth opportunities.
Commonwealth Fusion Systems
Commonwealth Fusion Systems
Devens, Massachusetts, United States On-site Full time USD 30–41 per hour UTC-05:00

Commonwealth Fusion Systems

Company Overview

Name

Commonwealth Fusion Systems (CFS)

Headquarters

Cambridge, MA, United States

Founded

2018

Size

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

Job Description

Are you ready to take the next step in your career - and to literally build the future? Join us at our job fair at CFS headquarters in Devens, Massachusetts on Saturday, Aug. 15, because CFS is hiring production technicians who can help our work in fusion energy innovation. That means your knack for building cutting-edge hardware and tackling challenging projects can bring a new energy technology to the world and a rewarding paycheck to you.

Watch this exciting video about CFS - future of fusion energy.

We're moving fast to bring fusion energy to the world and to bring new talent to our company. We'll be making job offers soon after the fair.

If you're interested, check here for hiring day registration details, or click the "apply for this job" button.

We're hiring production technicians at a variety of levels who can work on weekday nights, and weekend shifts - shifts that come with a 10% to 30% pay differential. The pay ranges from $30-$41 per hour before that differential, depending on your experience, and we offer benefits and equity in the company.

We're looking for technicians who

  • Have 3+ years of experience
  • Know electromechanical parts and assemblies
  • Can troubleshoot and resolve manufacturing discrepancies
  • Can read and interpret assembly drawings, wiring diagrams, with great attention to detail

The specific pay differentials are

  • Weekday second shift (Monday-Friday, 2 p.m. - 10:30 p.m.): 10%
  • Weekday third shift (Monday-Friday, 10 p.m. - 6:30 a.m.): 15%
  • Weekend first shift (Friday, Saturday, Sunday 6 a.m. - 6 p.m.): 15%
  • Weekend second shift (Friday, Saturday, Sunday, 6 p.m. - 6 a.m.): 30%

What to bring

  • Updated resume that highlights your skills and experiences
  • Closed-toe shoes
  • Any questions you have about working at CFS, our roles, or the hiring process

At the job fair, you'll also be able to meet our employees face to face and to see inside our magnet factory to see what the fusion energy future looks like.

$30 - $41 an hour

Hourly pay rate range for this full-time position + equity + benefits.* The actual rate 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

Apply now

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About the role

August 5, 2026

August 5, 2026

Full time

On-site

Company

USD 30–41 per hour

Hydrogen

Commonwealth Fusion Systems

cfs.energy

  •  Devens, Massachusetts, United States

3+ years

UTC-05:00