Intern - Cryogenics Engineer - Spring Co-op 2026

Commonwealth Fusion SystemsDevens, MA
118d

About The Position

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 working with policymakers and suppliers to build the energy industry of the future. We're in the best position to make it happen. Since 2018, we've raised nearly $3 billion in capital, making us the largest and leading private 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 Cryogenics Engineer Intern. The Cryogenics team is an enthusiastic group of full-time engineers with backgrounds that span from Aerospace to National Labs to Start Ups. Our goal is to develop cryogenic helium systems that are critical to keeping the HTS magnets within superconducting temperatures. We work in a fast-paced and strategically collaborative remote setting that allows us to take designs from concept to hardware within extremely short time spans. We are looking for an energetic co-op student to join our team. Within this co-op, you will be working on engineering design and analysis.

Requirements

  • Preferred majors include Chemical Engineering and Mechanical Engineering
  • Enthusiasm to learn (design and engineering company processes) and collaborate in a group setting
  • Exposure to fluid dynamics and thermodynamics
  • Experience with CAD software
  • Experience with FEA and/or CFD software
  • Interest in entrepreneurship

Nice To Haves

  • Willingness to travel or work required nights/weekends/on-call occasionally
  • Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, and cryogenics

Responsibilities

  • Turn-around tooling design
  • CFD analysis and design of a flow straightener
  • Scheme for cooldown of a cryogenic system
  • Develop and design test plans for a cryogenic tank
  • Design of an environmental enclosure for instrumentation

Benefits

  • 12-16 week internship program
  • 40-50 hours per week with set hourly salary based on year in school
  • Opportunity in Devens, MA
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