Intern - R&D Multiphysics Simulation Intern - Spring or Summer 2027
Somerville, MAInternshipPosted Nov 3, 2026
Requirements at a glance
Intern - R&D Multiphysics Simulation Intern - Spring or Summer 2027 at Commonwealth Fusion Systems is an internship role based in Somerville, MA. The posting mentions a doctorate. It requires existing authorization to work, so sponsorship should not be expected. Key skills include Python. Applications are submitted through Lever.
- Education
- Doctorate (PhD) (mentioned)
- Visa sponsorship
- Existing work authorization required
- Application platform
- Lever
Skills in this posting
- Python
- C++
- Spring
- Excel
Highlighted skills appear in the posting's requirements.
From the employer
- Eligibility:
Opportunities available for currently enrolled college students in all levels of schooling from bachelor’s degree to PhD
Extracted automatically from the job description. Confirm details in the full posting below.
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 a R&D Multiphysics Simulation Intern
Commonwealth Fusion Systems is seeking an R&D Multiphysics Simulation Intern to join the R&D team in Somerville, MA. The R&D Multiphysics Simulation Intern will work on advancing coupled electromagnetic and thermal circuit model workflows and models of high-temperature superconducting (HTS) magnet components for SPARC and ARC. The role includes collaborating across different departments to analyze experimental data and to validate our models.
#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.
Program Details:
What you'll do:
- Analyze cable magnet design concepts for ARC via reduced models capturing global and local effects
- Test new modules for simulation workflows against independent models & experimental data
- Understand experimental setups & data to validate & understand physical mechanisms measured
- Write clean, documented, version-controlled code that contributes to shared simulation tools
- Present methods and results to the R&D team and summarize the work in a final report