Senior Electrical Engineer - Power Supply Design

Commonwealth Fusion Systems

1050

Devens, MA, United States

Posted on: 2025-01-16

Category: renewables

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Expired

Employment type:

Full time

Experience required:

Senior

Salary

Salary not provided

About the company:

Commonwealth Fusion Systems (CFS) is on a mission to deliver clean fusion energy to the planet fast enough to matter for humanity’s biggest challenges.

It’s urgent. The gap between the energy we need and the energy we have is widening every day. Fusion is a critical part of the energy transition away from fossil fuels, a new chapter for the world’s energy supply.

We’re committing to delivering fusion power plants and a full-fledged fusion energy industry as we’ve delivered on other promises. Like the world’s strongest high-temperature superconducting magnet, the game-changing technology that’s making commercial fusion energy a reality.

We’ve raised over $2 billion in capital — more than any other fusion energy company — and attracted top talent to design, build, and deliver commercial fusion power plants. And we’re working with policymakers and suppliers to make fusion energy available globally.

As we push toward the fusion-energy future, we’ll keep setting and meeting milestones, sharing and validating our progress, and encouraging others to do the same.

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 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 over $2 billion in capital – more than any other fusion energy company in the U.S.

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 Senior Electrical Engineer - Power Supply Design

Senior Electrical Engineer - Power Supply Design reports to the Director of Power Systems in the SPARC team at CFS. You are responsible to lead and coordinate complex electrical design projects and interface with cross-function stakeholders while ensuring a high-quality design release that meets specifications, project timelines within budget allocated.

#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.

What you'll do:

Lead complex technical design activities to design, build and deliver IGBT / MOSFET power electronics based high current (kA levels) DC/DC and AC/DC power supplies applied for fusion power

Lead development of technical specifications for Medium Voltage & Low Voltage power electronics & electrical components

Design, model, simulate, analyze and validate power electronics circuits, magnetic components and control strategies for power supplies applied to highly inductive loads

Apply core electrical engineering knowledge and experience to design of Medium Voltage & Low Voltage system designs – specifically inductors, transformers and other high frequency magnetic equipment

Interface with cross functional teams with focus on high quality design and implementation

Lead critical procurement contracts & vendor coordination for power electronics and magnetics-based components, specifications and availability

Apply best electrical safety practices & compliance standards in design and implementation

What we’re looking for:

Bachelor’s degree (or) Master’s degree in Electrical Engineering

10+ years of power electronics and magnetics experience

Proven track record in design and execution (system, protection, control & mechanical integration) of DC/DC and AC/DC power supplies at high currents (>1kA), low/medium voltage and >100kW power ratings

Proven experience with semiconductor devices (IGBTs, MOSFETs etc.)

Proven design experience of power supplies applied to inductors for low and high frequency applications

Proven experience in power supply control topologies for ramp up and ramp down of energy

Experience with switching power supply converter topologies such as the Buck, Boost, Half-Bridge, Full-Bridge etc.

Experience with design analysis tools such as PSPICE, MATLAB, MathCAD etc

Ability to lead a technical team from conception of idea till implementation in a fast-paced environment

Experience with packaging design of power conversion equipment with Air or Water as the cooling media for thermal management

Excellent written and verbal communication skills, ability to conduct design reviews, organize / 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 Conversion and/or magnetics (transformers, inductors etc.)

DC/DC Power supply design and validation for high current electromagnets

Effective control of stored energy in high current electromagnets is a plus

Experience with novel transformer design concepts for high power density applications with FEA (finite element analysis) in Ansys Maxwell 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

Experience with scaling up independent systems to a larger system to meet higher power requirements

Must-have requirements:

Ability to lift up to 50lbs

Perform activities such as standing or sitting for extended periods of time

Willingness to travel or work outside of standard work hours as needed

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

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