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Electrical Technician - Contract

Commonwealth Fusion Systems

Commonwealth Fusion Systems

Other Engineering
Devens, MA, USA
Posted on Nov 13, 2025
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 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 Contract Electrical Technician
Electrical Technician in the Power Electronics team at CFS will work under the direction of the Lead Electrical Test Technician. Responsibilities include receipt, installation, configuration, testing, validation, and commissioning support of prototype and production level power electronics-based converter systems and DC battery storage systems at a large scale for SPARC to produce fusion power.
Responsible for tactical implementation of tasks within the power electronics team and also support cross functional teams with technical and tactical needs. Aid in the development, assembly, and operation of new test platforms and will report test results and data to the design responsible engineers.
This role is on-site at Devens, MA for system installation & commissioning and at Somerville, MA for advanced development prototype testing.
Daily interface with the power electronics team will open opportunities to further technical skill set and ability to solve complex problems with various sub-systems.

What you'll do:

  • Individual contributor in electrical sub-system and system level testing and validation, knowledge in controls and programming is a plus
  • Ability to understand electrical schematics, general layout drawings, simulation results, specifications and engineering reports
  • Perform repeated sub-system level inspection, installation, configuration, and commissioning
  • Experience working as part of a team on advanced development and system implementation is a plus
  • Proactively procure or build all tools, fixtures, or manipulation equipment required for the upcoming tests per schedule
  • Attend design reviews and provide feedback from the test perspective to the engineering team
  • Assist in the testing with regards to root cause analysis and field failures is a plus
  • Hands on work with Low Voltage (<1000V) and Medium Voltage systems (>1000V up to 35kV)
  • Collaborate with engineering teams proactively to seek feedback and meet all the requirements defined

What we’re looking for:

  • Associate’s degree in electrical technology or a related field in technology or equivalent certification or extensive experience with Electrical systems
  • 2-3 years of Electrical Experience demonstrating hands on installation, testing and validation
  • Experience working with Low Voltage (<1000V) AC & DC systems over 120 Volts
  • QEW training in Low Voltage, Medium Voltage systems and Arc Flash Safety
  • Experience with control hardware and programmable logic controllers
  • NEC / NFPA 70E, Electrical Safety
  • Experience working with Medium Voltage (>1kV up to 35kV)

Bonus Points For:

  • Lifting operations experience Knowledge of assembling sub-systems and prototype systems
  • Experience with highly complex electrical systems
  • Experience with fast-paced and dynamic construction, manufacturing, or assembly/integration builds
  • Experience working on complex electromechanical and/or mechanical systems

Must-have requirements:

  • Occasionally lift up to 50 lbs
  • Perform activities such as typing, standing, and 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.
This is a contract position.