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R&D Test Engineer Electrical Power Systems
Job Location:
Job Location:
Devens, MA - USA
Yearly Salary:
$ 90000 - 145000
Yearly Salary:
Posted:
30 August 2026 (8 hours ago)
Posted:
Application Deadline:
27 November 2026
Application Deadline:
Vacancies:
1 Vacancy
Vacancies:
Job Summary
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 were designing and building commercially viable fusion power plants. And were working with policymakers suppliers and many others to build the energy industry of the future.
Were in the best position to make it happen. Since 2018 weve raised $4 billion of capital making us the largest and leading fusion company in the world.
Now were looking for more thinkers doers builders and makers to join us. People wholl bring new perspectives solve tough problems and thrive as part of a team.
If thats you and this role fits we want to hear from you.
Join the power movement as an R&D Test Engineer
The role of a Test Engineer is to seamlessly flex between multiple disciplines and groups to effectively execute tests and projects on aggressive schedules supporting Commonwealth Fusion Systems mission. This engineer will be primarily responsible for testing and retiring risks for CFS HTS magnets. They must have a fundamental understanding of mechanical electrical materials fluids and software engineering or some combination thereof. This role in particular emphasizes electrical power systems used to test HTS magnets. They will be responsible for the design analysis build commissioning and maintenance of high current and high voltage electrical equipment. They must work collaboratively across manufacturing R&D procurement and SPARC teams to achieve their test campaigns. It is also the role of the test engineer to constantly push and challenge the requirements risks and test objectives that they are given to help the combined stakeholders come to a consensus on why the planned test is required and what data is deemed essential for the outcome to be achieved.
What youll do:
- Design analyze review procure and build test equipment for energizing superconducting magnets
- Contribute to ground-up design of electrical testing infrastructure in new testing facilities
- Develop test plans highlighting the test objectives key data that are needed and the instrumentation and controls necessary to obtain this data. Ensure data is reliable
- Understand challenge and maintain well-documented requirements and risks for the system or component under test
- Identify and mitigate safety hazards associated with test equipment. Produce safety documentation such as job hazard assessments and test readiness reviews
- Maintain documentation schedule and budgets for the test campaign. Documentation includes: design reviews wiring lists P&IDs schematics CAD assemblies drawings and operations software
- Troubleshoot and resolve integration and test discrepancies during build commissioning and operation
- Iterate on designs equipment and operations for repeat tests to improve test efficiency
- Perform analyses for the system predicting results and develop custom tools to analyze generated data. Compile test results clearly for review
- Lead anomaly investigations and their resolution and present results to a team of physicists and engineers
- Execute plans for future expansion including capital equipment and floor layouts always having a vision for scalability of systems into a larger context. Provide visions for multi-use test infrastructure that can be scaled for multiple applications
What were looking for:
- Bachelors degree in engineering or science field is required; electrical engineering mechanical engineering or similar or applied physics degree
- 5years experience designing/building/commissioning specialized electrical apparatus or equipment
- 2 years using electrical analysis software such as PLECS LTSPICE ETAP Simulink or similar
- Aptitude for applying electromagnetic fundamentals to understand system behavior such as: parasitic inductance/capacitance EMI coupling dielectric breakdown etc
- Familiarity with electrical standards such as building codes (NEC/NFPA 70) personnel safety (OSHA NFPA 70E) equipment safety standards (IEC IEEE etc)
- Experience working with high-power electronics such as rectifiers DC/DC converters inverters etc
- Experience working with stored energy devices such as batteries and supercapacitors
- Excellent troubleshooting/problem-solving skills with great attention to detail
- Strong desire to improve efficiency and throughput of processes
- Effective at communicating technical topics to both technical and non-technical audiences
- High self-motivation and drive to execute quickly
- A can-do attitude and an eagerness to learn
- Collaboration skills including active listening and facilitating a productive discourse on problems
- Ability to innovate creative solutions to challenging problems
- Willingness to challenge the status quo in search of better more efficient methods
- Experience with designing and commissioning new test facilities
- Experience with developing and executing test procedures
Bonus points for:
- Experience with thermal or electromagnetic FEA software.
- Experience using NX and Teamcenter to manage CAD assemblies
- Experience with schematic or PCB design software such as AutoCAD SkyCAD Altium etc
- Experience with high field magnet testing traditional or superconducting
Must-have requirements:
- Ability to occasionally lift up to 50 lbs
- Perform activities such as stooping climbing typing standing or sitting for extended periods of time
- Dedication to safety to mitigate industrial hazards that may include heat cold noise fumes strong magnets lead (Pb) high voltage and cryogenics
- Willingness to travel or work required nights/weekends/on-call occasionally
$90000 - $145000 a year
Salary range for this full-time position equity benefits.The actual salary will depend on level location qualifications and experience. The range displayed on each job posting reflects new hire salaries for the position across all US locations. Benefits include:
Competitive compensation with equity
13 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
#LI-Onsite
At CFS we excel in fast-paced environments driven by our values of integrity execution impact and self-critique. As we grow were 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.
Required Experience:
IC
