We’re seeking an experienced Test Engineer to support the testing and de-risking of our cutting-edge HTS magnet technology, playing a key role in advancing fusion energy. Embedded within our R&D organization, you’ll take on a broad range of responsibilities, from developing methodologies and procedures with magnet physicists to conducting root cause analysis alongside manufacturing experts working with complex new materials. This dynamic role demands flexibility, cross-disciplinary collaboration, and the ability to execute tests on tight timelines. You’ll lead the integration and operation of complex test stands, define safety standards, develop and refine procedures, and drive continuous improvement to help achieve our extraordinary milestones in making fusion a reality.
What you'll do:
- Lead magnet and other test campaigns in cryogenic, vacuum, and high-current environments
- Develop detailed test procedures and ensure data integrity with robust instrumentation and controls
- Support improvements to test stands, optimizing for test rate and ensuring data quality
- Design, analyze, and build test equipment, including mechanical, electrical, and fluid systems
- Maintain and document test requirements, risks, and safety protocols
- Manage test schedules, budgets, and technical documentation (P&IDs, CAD designs, schematics, etc.)
- Improve test processes for repeatability and efficiency
- Analyze test data, create custom tools for data analysis, and present findings to cross-functional teams
- Lead anomaly investigations and resolution, collaborating with physicists and engineers
What we’re looking for:
- Bachelor’s (or higher) in engineering or applied physics, with 2+ years of hands-on testing experience
- Expertise in test stand operation, data collection, and cross-functional collaboration
- Strong background in test planning, data analysis, and test equipment design
- Experience with electromagnetic fundamentals and troubleshooting complex systems
- A passion for process improvement and innovative problem-solving
- Excellent communication skills, with the ability to present technical topics clearly
- Self-motivated, results-driven, and eager to learn
Bonus points for:
- Experience with structural FEA software, particularly ANSYS and COMSOL
- Proficiency in using NX and Teamcenter for designing complex test equipment and assemblies
- Experience with Ignition for developing Human Machine Interfaces
- Proficiency in using Jira or similar ticket and task tracking software for managing projects and status
- Experience with large-scale data collection, manipulation, and analysis to derive actionable insights
- Hands-on experience operating complex test stands for long-duration test campaigns
Must-have requirements:
- Ability to occasionally lift up to 50 lbs
- Perform activities such as typing, climbing, standing, stooping or sitting for extended periods of time
- Willingness to occasionally travel or work required nights/weekends/on-call
- 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
Skills Required
- Bachelor’s degree or higher in engineering or applied physics
- 2+ years of hands-on testing experience
- Expertise in test stand operation, data collection, and cross-functional collaboration
- Strong background in test planning, data analysis, and test equipment design
- Experience with electromagnetic fundamentals and troubleshooting complex systems
- Passion for process improvement and innovative problem-solving
- Excellent communication skills and ability to present technical topics clearly
- Self-motivated, results-driven, and eager to learn
- Experience with structural FEA software, particularly ANSYS and COMSOL
- Proficiency with NX and Teamcenter for complex test equipment and assembly design
- Experience with Ignition for developing human-machine interfaces
- Proficiency with Jira or similar ticket and task tracking software
- Experience with large-scale data collection, manipulation, and analysis
- Hands-on experience operating complex test stands during long-duration campaigns
- Ability to occasionally lift up to 50 pounds
- Ability to type, climb, stand, stoop, or sit for extended periods
- Willingness to occasionally travel or work nights, weekends, or on-call shifts
- Ability to work in a facility with industrial hazards, including high voltage, high current, pressure systems, lead, strong magnets, and cryogenics
- Compliance with U.S. Export Control Laws
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.
