Technician / Shift Operator (m/w/d)
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
Job Description
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 a Shift Operator
The Shift Operator will be part of the team responsible for the safe and efficient operation of the SPARC Tokamak and supporting systems. Reporting to the Senior Manager of SPARC Plant Operations, this role is essential to support commissioning, operational readiness, and steady-state operations.
Shift Operators will perform both Control Room monitoring and field operations, responding to alarms and abnormal conditions, while ensuring safe operating practices at all times. Operators will receive training on SPARC's major steady state plant systems, including:
- Electrical distribution
- Cooling Water
- Compressed Air
- HVAC
- Cryogenics Plant
- Other supporting plant infrastructure
Additional responsibilities include:
- Procedure development and revision
- Equipment/system troubleshooting and testing
- Performing Lockout/Tagout
- Supporting commissioning and training activities
This position is ideal for individuals with power plant or equivalent complex facility experience, who thrive in dynamics environments, and want to contribute directly to the operation of a first-of-its-kind fusion facility.
Shifts available:
- 1st shift - Hours: 6:00 am - 2:30 pm
- 2nd shift - Hours: 2:00 pm - 10:30 pm, 10% differential
- 3rd shift - Hours: 10:00 pm - 6:30 am, 15% differential
- Weekend 1st shift - Hours: 6:00 am - 6:00 pm, Work Sat - Mon, 15% differential
- Weekend 2nd shift - Hours: 6:00 pm - 6:00 am, Work Sat - Mon, 30% differential
What you'll do
- Operate, monitor, and maintain plant systems and equipment supporting SPARC operations
- Troubleshoot systems such as cooling water, compressed air, HVAC, cryogenics, liquid nitrogen, and electrical distribution
- Safely operate plant equipment under normal and abnormal conditions, both remotely from the control room and locally in the field
- Perform switching and tagging (LOTO) to support maintenance and commissioning
- Participate in procedure development, revision, and optimization
- Support testing and commissioning of plant systems
- Adhere to human performance and safety standards in all activities
What we're looking for
- High School Graduate/GED
- 5 years in operations at complex facilities
- Experience in low voltage and/or complex electrical environments
- Experience with large cooling water systems
- Previously qualified Lockout Tagout (LOTO) / Tagging Program
- Complex facility operations (power plant, oil & gas, LNG, etc.)
- Safety-conscious mindset with demonstrated strong safety background
- Comprehensive understanding of engineering principles and theory of operation of mechanical, electrical, and hydraulic systems associated with facility operations
- Well-developed analytical and problem-solving skill to permit analysis and evaluation of system problems and the ability to apply knowledge and the use of procedures to the operation
- Excellent communication skills, both verbal and written
- Excels in a constantly changing environment
- Ability to learn new things quickly
Bonus points for
- Experience in radiological environments
- Experience with Cryogenic Systems
- Bachelors Degree in Engineering or related field
- Strong background in Human Performance
- Experience with high voltage electrical 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
- Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, and cryogenics
- Willingness to travel or work required nights/weekends/on-call occasionally
$30 - $41 an hour
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
- 12.5 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.
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About the role
October 1, 2025
Full Time
Company
January 9, 2026
On-site
USD 30–41 per hour
- Devens, Massachusetts, United States
5 years in operations at complex facilities
UTC-05:00
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