Plasma Modeling Intern

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Marathon Fusion

11-50 employeesSan Francisco, CaliforniaRenewable Energy Equipment Manufacturing
Actively hiringPaidSpring 2027Renewable Energy Equipment Manufacturing
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About the role#

You will join the science team as a physics modeling intern. Your work will focus on building simulations that guide the design of our fusion fuel cycle hardware. You will work in regimes where fluid models are not valid, requiring you to track particles directly. Your main project involves performing Direct Simulation Monte Carlo (DSMC) and Particle-in-Cell (PIC) modeling of rarefied gases and partially ionized plasmas.

What you'll do#

  • Build, run, and validate particle-based simulations of rarefied gases and plasmas.
  • Present your results and turn them into takeaways that inform hardware and design decisions.
  • Manage several modeling projects at once, including smaller assignments alongside your main project.

What you'll need#

  • Current pursuit or completion of an undergraduate degree in physics or a similar field.
  • Experience with numerical physics modeling.
  • Excellent written and oral communication skills.
  • Ability to think holistically, learn new technical subjects quickly, and collaborate across different functions.
  • Strong organization and project management skills.
  • High level of conscientiousness and integrity.
  • Ability to maintain long-term vision while executing short-term goals.
  • Comfort with the uncertainty of breakthrough technology.
  • Experimental mindset with the ability to form and test hypotheses.
  • Research experience in computational plasma physics is preferred.
  • Experience with Particle-in-Cell modeling or Direct Simulation Monte Carlo is preferred.
  • Proficiency in using AI tools for research and coding is preferred.

Location & details#

  • Location: San Francisco, California, USA.
  • Term: Spring 2027.
  • Modality: On-site.
  • Status: Full-time, paid internship.
  • Note: Sponsorship is not available for this role.
Relevant fieldsPhysics

About Marathon Fusion

Marathon Fusion develops fuel processing technology for fusion power plants. The company focuses on the practicality and adoption of fusion energy. It operates within the renewable energy equipment manufacturing sector. Based in San Francisco, California, the organization employs between 11 and 50 people.

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