About the role#
We are looking for a Plasma Physics Intern to join our digital twin team for the summer of 2027. This position is open to both undergraduate and graduate students. You will work on one or two projects chosen at the start of your internship, with tasks tailored to your current skill level and academic background. We encourage students with experience in plasma physics or those applying machine learning and AI to physics problems to apply.
What you'll do#
- Perform plasma physics calculations for SPARC and ARC using computational models or experimental data.
- Build new computational modules for the SPARC digital twin, including physics and engineering models.
- Create AI workflows that use surrogate models to speed up complex physics calculations.
- Design data visualization methods to display plasma physics data within the digital twin.
What you'll need#
- Pursuing a degree in Physics, Computer Science, Computer Engineering, Electrical Engineering, or Mechanical Engineering.
- Introductory knowledge of plasma physics, specifically tokamaks and magnetic confinement fusion.
- Experience with agentic AI for coding and scientific research.
- Proficiency in Python, C++, or similar languages.
- Familiarity with version control systems like git.
- Strong writing and technical communication skills.
- A commitment to safety, including the ability to mitigate hazards like high voltage, cryogenics, strong magnets, and industrial fumes.
- Ability to perform physical tasks such as sitting, standing, or typing for extended periods.
- Willingness to work nights, weekends, or on-call hours as needed.
Location & details#
- This is a full-time, on-site internship based in Devens, Massachusetts.
- The term runs for 13-18 weeks during Summer 2027.
- You must be authorized to work in the United States. We do not provide sponsorship for this role.
About Commonwealth Fusion Systems
Commonwealth Fusion Systems develops fusion power plants to supply clean energy. Founded in 2018 and based in Devens, Massachusetts, the company employs between 501 and 1,000 people. It specializes in energy technology and has created high-temperature superconducting magnets to support commercial fusion. The organization operates as a private entity.
How to get in at Commonwealth Fusion Systems
Applying early to Commonwealth Fusion Systems gives you a distinct advantage because recruiters review applications before the candidate pool grows too large. Intern Insider sends an instant alert the moment a role matching your target is published anywhere, so you can be among the first to submit your materials. This ensures your profile is visible when the hiring team starts their initial search. You can also improve your response rates by reaching out to the people managing these roles directly. Intern Insider surfaces the recruiters behind the company's roles, allowing you to ask relevant questions or request a referral. Taking this step shows you are serious about the work and helps you stand out from the standard queue.


