The Role
Lead design, simulation, testing, and commissioning of medium-voltage power electronic converter systems. Define component specifications, develop test plans, troubleshoot systems, coordinate vendors, and document engineering designs to deliver high-power electrical equipment for fusion power applications.
Summary Generated by Built In
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 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 Senior Power Electronics Engineer
Senior Power Electronics Engineer reporting to the Director of Power Systems in the SPARC 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:
- Design, model, simulate, analyze and validate power electronics circuits, magnetic components and control strategies for medium voltage power electronic converter systems (i.e. power supplies)
- Define components and develop technical requirements and specifications for power electronic converter systems and other electrical designs
- Develop test methods to qualify design from concept through final testing and commissioning steps including troubleshooting of converter systems
- Contribute to cross-functional technical design activities to design, build and deliver electrical system designs for fusion power
- Collaborate with cross-functional teams on critical procurement contracts & vendor coordination efforts of critical technical and other project milestones
- Define requirements and lead initial commissioning activities for power electronic systems
- Document design specifications, simulations and test results into engineering reports
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
- Proven track record in design and development (system, protection, control & mechanical integration) of power electronics based electrical systems
- Knowledge of various inverter circuit topologies and the benefits and limitations
- Experience with modeling & simulation with analysis tools such as PLECS, PSPICE, MATLAB etc
- Experience with semiconductor devices (IGBT, MOSFET, etc.) and magnetic components (transformers, inductors etc.)
- Fundamental understanding of gate drive circuits, design and device protection
- Experience with packaging design of power conversion equipment and thermal management
- Experience with high power electrical equipment >10MW
- Experience with hands on testing of electrical components, sub-assemblies and systems in the laboratory and use of oscilloscopes and other measurement equipment
- 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 a focus on Power Electronics
- Experience in practical application of electrical engineering skills to construction, manufacturing, testing and field installations
- Experience with application of compliance standards to the designs (IEC, UL, CSA, NEC etc.)
- 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, 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.
Skills Required
- 8+ years related experience with Bachelor's degree or Master's with 6+ years
- Proven track record in design and development of power electronics systems (system, protection, control, mechanical integration)
- Knowledge of inverter circuit topologies and their tradeoffs
- Modeling and simulation experience with PLECS, PSPICE, MATLAB
- Experience with semiconductor devices (IGBT, MOSFET) and magnetic components (transformers, inductors)
- Fundamental understanding of gate drive circuits, device protection
- Experience with packaging design of power conversion equipment and thermal management
- Experience with high power electrical equipment (>10MW)
- Hands-on testing of electrical components, sub-assemblies and systems; use of oscilloscopes and measurement equipment
- Excellent written and verbal communication; ability to conduct design reviews and present results
- Ability to lift up to 50 lbs
- Ability to perform standing, typing, or sitting for extended periods
- Willingness to travel or work required nights/weekends/on-call occasionally
- Ability to work in facilities with industrial hazards (heat, cold, noise, fumes, strong magnets, lead, high voltage/current, pressure systems, cryogenics)
- Master's degree in electrical engineering with focus on Power Electronics
- Practical experience applying electrical engineering to construction, manufacturing, testing, and field installations
- Experience applying compliance standards (IEC, UL, CSA, NEC) to designs
- Experience in problem solving, root cause analysis, and field containment actions
- Hands-on prototype build, prototype testing, and documentation of results
- Experience scaling independent systems to larger, higher-power systems
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The Company
What We Do
Commonwealth Fusion Systems (CFS) has the fastest, lowest cost path to commercial fusion energy. CFS is collaborating with MIT to leverage decades of research combined with new groundbreaking high-temperature superconducting (HTS) magnet technology. HTS magnets will enable compact fusion power plants that can be constructed faster and at lower cost. CFS is now building SPARC, the world's first commercially relevant, net energy fusion demonstration device. SPARC will pave the way for the first fusion power plant, ARC, that will produce power on the grid. The ultimate mission is to deploy fusion power plants to meet global decarbonization goals as fast as possible. CFS has assembled a team of leaders in tough tech, fusion science, and manufacturing with a track record of rapid execution. Supported by the world’s leading investors, CFS is uniquely positioned to deliver limitless, clean, fusion power to combat climate change. If you are interested in joining our team, check out cfs.energy/careers for more information.
