Senior Electrical Engineer

CommonwealthFusion

On-site

Devens, MA

Full-time

Senior

8+ yrs

Salary not listedPosted 3d ago

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Real job — pulled straight from CommonwealthFusion’s careers page · Verified August 29, 2026 · No reposts.

CommonwealthFusion is hiring a Senior Electrical Engineer — a full-time, based in Devens, MA role. Apply directly on CommonwealthFusion's careers page below.

Senior Electrical Engineer

Team: Electrical Engineering

Location: Devens, MA

Commitment: Full-time

Workplace Type: onsite

Salary:

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

About Commonwealth Fusion Systems:

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, suppliers, and many others to build the energy industry of the future.

We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading 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 Senior Electrical Engineer

Senior Electrical Engineer reporting to the Manager of Power Electronics in the Pulsed Electrical Distribution System (PEDS) team at CFS. Responsible to lead and coordinate electrical design projects and interface with cross-function stakeholders while ensuring a high-quality design release that meets specifications, project timelines within budget allocated.

What you'll do:

Lead complex high power electrical designs for SPARC’s pulsed power system.
Develop technical requirements for vendor electrical equipment based on simulations and analysis of the SPARC power system.
Develop test methods and test plans to qualify newly developed electrical designs.
Lead the installation, test, and operations handover for electrical designs.
Lead electrical work package releases (equipment list, drawings, schematics).
Apply core electrical engineering knowledge and experience to design high power systems (including but not limited to switchgear, transformers, reactors, semiconductor devices, cooling systems and control systems).
Develop control narratives, concept of operations, and commissioning procedures for newly developed electrical systems.
Interface with SPARC cross functional teams including R&D, physics, construction, manufacturing, software, test, compliance & commissioning, etc. to ensure all requirements are met.
Support critical procurement contracts & vendor coordination.
Apply best electrical safety practices & compliance standards in design and implementation.
Work on advanced development to develop in-house electrical power technologies for the future of CFS.

What we’re looking for:

8+ years of related experience with Bachelor’s degree (or) a Master’s degree with 6+ years of experience with power electronics based systems
Ability to lead a technical team from conception of idea till implementation in a fast-paced environment
Proven experience leading teams while also contributing technically to engineering projects
Proven track record in design and implementation of power systems in the electrical power industry
Extensive experience with Medium Voltage & Low Voltage systems (AC/DC power distribution, power conversion, energy storage solutions)
Experience with modeling, simulation and analysis backed with validation via functional testing
Excellent written and verbal communication skills, ability to conduct design reviews, organize and present results to both expert and non-technical audiences
Results driven and ability to embrace and convince stakeholders on a change in design direction in pursuit of a high-quality product release

Bonus points for:

Master’s degree in electrical engineering with focus on power systems and/or power electronics
Experience in practical application of electrical engineering skills to construction, manufacturing, testing and field installations
Experience with energy storage (batteries, capacitors etc.) is a plus
Experience in problem solving, root cause analysis and field containment actions
Experience with hands on prototype build, prototype testing and documentation of results is a plus

Must-have Requirements:

Ability to lift up to 50lbs
Perform activities such as standing, typing or sitting for extended periods of time
Willingness to travel or work required nights/weekends/on-call occasionally
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

#LI-Onsite

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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