Commonwealth Fusion Systems · 1 month ago
Diagnostician
Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. The Diagnostician role involves overseeing the design and implementation of diagnostic systems for the SPARC tokamak, working collaboratively with a team to ensure successful assembly and operation of these systems.
Clean EnergyElectrical DistributionEnergyEnvironmental EngineeringRenewable Energy
Responsibilities
Shepherd SPARC diagnostic sub-systems through final design, working with a team of scientists, designers, analysts and engineers
Integrate technical input from experts in the SPARC team to ensure diagnostic designs will be usable to achieve SPARC’s mission goals
Develop the diagnostic’s assembly, installation, calibration and commissioning plans to ensure SPARC is able to achieve first plasma on-schedule
Integrate the diagnostic into the plant-level and real-time plasma control systems
Participate in the testing and operation of diagnostic systems that balances learning how to operate SPARC with obtaining physics results as quickly as possible
Contribute to a strong safety culture
Collaborate with CFS designers and analysts as well as provide feedback to academic partners providing input to SPARC diagnostic designs
Qualification
Required
Bachelor's degree in a relevant engineering field (mechanical, aerospace, civil or nuclear)
Participated in the design of a new or upgraded scientific instrument of the scale and complexity of those used in magnetically confined fusion
Demonstrated examples of using scientific instruments to support an operational and/or research mission
Developed software using Python, Matlab, C++ or equivalent for analysis of experimental data and automation of lab equipment
Relevant hands-on knowledge/skills specific to diagnostic systems listed in summary (e.g. vacuum systems, lasers, calibration sources, etc.)
Ability to understand concepts and tradeoffs that bridge engineering and physics
Ability to occasionally lift up to 50 lbs
Perform activities such as climbing, typing, standing, or sitting for extended periods of time
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
Willingness to occasionally travel to witness FAT at vendor locations worldwide. May work second/third shifts and/or weekends as dictated by project needs
Preferred
Participated in the design and implementation of a plasma diagnostic for a magnetically confined fusion experiment at University-scale or above
Benefits
Competitive compensation with equity
12.5 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
Company
Commonwealth Fusion Systems
Commonwealth Fusion Systems designs and develops commercial fusion energy systems to produce clean energy.
Funding
Current Stage
Late StageTotal Funding
$2.88BKey Investors
GoogleUS Department of EnergyTiger Global Management
2025-08-27Series B· $863M
2025-06-30Corporate Round
2024-06-06Grant· $15M
Recent News
2026-01-13
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2026-01-11
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