What you'll do:
- Develop 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 AC / DC medium voltage power supplies
- Develop test methods to drive design from concept through final testing and commissioning steps including troubleshooting of power supplies
- Contribute to technical design activities to design, build and deliver power electronics based electrical systems design for fusion power
- Apply core electrical engineering knowledge and experience to design Medium Voltage & Low Voltage system designs
- Interface with cross functional teams with focus on high quality design and implementation
- Collaborate with cross functional teams on critical procurement contracts & vendor coordination efforts
- Document design specifications, simulations and test results into engineering reports
What we’re looking for:
- 5+ years of related experience with Bachelor’s degree (or) a Master’s degree with 3+ 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
- Experience with modeling & simulation with analysis tools such as PLECS, PSPICE, MATLAB etc.
- Experience with semiconductor devices (IGBTs, MOSFETs etc.) and magnetic components (transformers, inductors etc.)
- Experience with packaging design of power conversion equipment and thermal management
- Experience with testing of electrical components, sub-assemblies and systems in the laboratory
- 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 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 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
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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.





