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The Role
R&D Test Engineering Interns design and build hardware samples, manufacturing processes, test equipment, sensors, and data acquisition systems for high-temperature superconducting magnet technology. Responsibilities include executing test operations, conducting structural, electrical, and thermal analyses, troubleshooting, maintaining technical documentation, managing schedules, budgets, BOMs, and instrumentation indexes, and presenting updates to cross-functional engineering teams. The role may involve onsite work and exposure to industrial hazards, including cryogenics, high voltage, strong magnets, heat, noise, and fumes.
Summary Generated by Built In
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 we're working with policymakers, suppliers, and many others to build the energy industry of the future.
We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading 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 an R&D Test Engineering Intern
We are looking for talented R&D Test Engineering Interns to join our team! CFS interns are highly valued within the organization and placed into meaningful and challenging roles.
Program Details:
- 13-26 week internship
- 40-50 hours per week with set hourly salary based on year in school
- Opportunities on site in Devens, MA and Somerville, MA. If an intern is going to be on site, you will be responsible for your own transportation and housing
- Specific project assignments and required technical skillset will vary based on the team’s existing need.
- Opportunities available for currently enrolled college students in all levels of schooling from bachelor’s degree to PhD
- Interns must be authorized to work in the United States for any employer
What you'll do:
- Design and build R&D samples and develop associated manufacturing processes, and execute test operations in support of risk-mitigation development campaigns for novel HTS magnet technology
- Design, build, and commission test equipment and collaborate with instrumentation and controls engineers to develop associated sensors and data acquisition as needed
- Perform structural, electrical, and/or thermal analyses in support of R&D sample design and to predict test results
- Create and manage design, process, and test documentation along with schedules, budgets, BOMs, instrumentation indexes, etc. and deliver technical update presentations to manager and cross-functional technical teams as needed
- Support SPARC magnet acceptance testing through the design, build, and commissioning of upgrades and subsystems within the Magnet Factory
We currently have multiple openings for the R&D Test Engineering Internship. Please note that the following list encompasses all available roles, so individual responsibilities will vary depending on the specific position:
What we’re looking for:
- Pursuing a degree with focus in the field of Mechanical Engineering, Electrical Engineering, Aerospace Engineering, or Physics
- Prior experience with a hands-on hardware internship, Formula SAE, Rocket Club, Machine Shop, or equivalent
- Proficiency with basic hardware tools and test equipment (torque wrenches, multimeters, calipers, saws, drills, taps, power supplies, etc...)
- Demonstration of exceptional results through a range of different pursuits
- High self-motivation and drive to execute quickly with excellent troubleshooting/problem-solving skills
- Communication - not afraid to ask for help, shows evidence that they’d integrate nicely into a team of technical engineers / scientists, but also able to communicate with people with less of a technical background, like technicians, supply chain, etc
Must-have Requirements:
- Perform activities such as 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
#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.
Skills Required
- Currently pursuing an engineering degree, preferably focused on Mechanical Engineering
- Prior hands-on hardware internship, Formula SAE, Rocket Club, machine shop, or equivalent experience
- Authorization to work in the United States for any employer
- Strong troubleshooting and problem-solving skills
- Ability to communicate effectively with technical and nontechnical teams
- Willingness to travel or work occasional nights, weekends, or on-call shifts
- Ability to type, stand, or sit for extended periods
- Dedication to safety when working around industrial hazards
Commonwealth Fusion Systems Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Commonwealth Fusion Systems and has not been reviewed or approved by Commonwealth Fusion Systems.
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Healthcare Strength — Health insurance is a core part of the package, with broad medical coverage presented as competitive for a growing tech and engineering employer. This is consistently listed alongside other cornerstone benefits.
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Retirement Support — A 401(k) program with employer match is prominently included in compensation descriptions, signaling support for long-term savings. This appears across roles, including technical and production postings.
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Parental & Family Support — Generous parental leave is cited as a notable element of the offering. It sits alongside paid leave options that many candidates prioritize.
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The Company
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.
