Staff Environmental Engineer
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 Staff Environmental Engineer
The Staff Environmental Engineer is a senior-level professional responsible for leading complex environmental projects, providing technical expertise on environmental regulations, ensuring compliance with environmental laws. Provides long-term environmental strategy in a fusion technology environment. Oversees environmental assessments, permit applications, and mitigation strategies, while also staying updated on emerging environmental regulations and technologies.
What you'll do
- Technical Leadership
- Serves as a subject matter expert on environmental regulations and compliance issues
- Designs and implements environmental management systems, policies, and programs
- Analyzes complex environmental data to identify potential risks and develop mitigation plans
- Leads technical aspects of environmental projects, including site investigations, feasibility studies, and design reviews
- Drive CFS's ESG performance by collaborating with cross-functional teams to develop and implement environmental, social, and governance initiatives-ensuring alignment with recognized frameworks and continuous improvement of sustainability metrics
- Project Management
- Oversees large-scale environmental projects, including budget management, scheduling, and resource allocation
- Collaborates with other departments (operations, legal, etc.) to ensure environmental compliance across the organization
- Environmental Regulatory Compliance & Permit Management
- Oversees all permitting processes (e.g. EPA, state-specific agencies) related to air emissions, water discharges, hazardous waste, and other relevant areas
- Prepares and submits environmental permits and reports to regulatory agencies
- Interfaces with regulatory agencies, ensuring timely submissions, permit renewals, and compliance
- Monitors environmental performance to identify areas for improvement and compliance risks
- Stakeholder Management
- Communicates environmental issues and project updates to clients, stakeholders, and regulatory agencies
- Builds relationships with regulators, external consultants, and contractors
- Innovation and Development
- Stays up to date on new environmental technologies and regulations
- Identifies opportunities to improve environmental performance within the organization
What we're looking for
- Bachelor's degree in Environmental Science, Engineering, or a related technical field
- 10+ years of progressive experience in environmental consulting or industrial environmental management, preferably in complex technical environments such as heavy industry, power, or advanced R&D
- Prefer demonstrated success in integrating ESG considerations across cross-functional teams to drive sustainability, reduce environmental impact, and ensure responsible governance within a complex or highly regulated industry
- Deep understanding of environmental regulations at the local, state, and federal levels
- Strong technical skills in environmental assessments, permitting, and compliance monitoring
- Excellent communication and interpersonal skills to interact with diverse stakeholders
- Strong ability to manage complex projects: plan, execute, and manage projects of significant scope - defining milestones, budgets, and schedules
- Excellent troubleshooting and risk assessment skills, with a flair for innovative, data-driven solutions
- Capable of inspiring change, mentoring colleagues, and driving continuous improvement in a lean, fast-paced environment
Bonus points for
- Master's degree
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
$130,000 - $200,000 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.
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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!
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!
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About the role
April 9, 2026
Full time
Company
- Devens, Massachusetts, United States
10+ years
UTC-05:00