Co-op - Cryogenics Analysis Engineer - 2025

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 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 over $2 billion in capital – more than any other fusion energy company in the U.S.

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 Co-op

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 environment  to take designs from concept to hardware implementation and testing within extremely short time spans. We are looking for an energetic and resourceful co-op student to join our team. Within this co-op, you will be working on engineering design and analysis.

This co-op position requires 6 months, full-time hours and onsite in our Devens, MA location.

• 6 month co-op
• 40-50 hours per week with set hourly salary based on year in school
• Opportunity in Devens, MA. 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

• 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
• Learning objectives would include but not be limited to:
• (1) Process engineering. Read and develop key engineering documents, e.g. process flow diagrams (PFDs), piping and instrumentation diagrams (P&IDs)
• (2) Thermohydraulics analysis. Drive down technical risk through analysis, using engineering tools
• (3) Project management. Build, manage, and report on project milestones, building schedules

• Preferred majors include Chemical Engineering and Mechanical Engineering
• Enthusiasm to learn (design and engineering company processes) and collaborate in a group setting
• Exposure to process fluid systems and process flow schematics
• Exposure to fluid dynamics and thermodynamics
• Experience collecting, troubleshooting, and interpreting data measurements
• Exposure to CAD and FEA/CFD software
• Interest in entrepreneurship

• Willingness to travel or work required nights/weekends/on-call occasionally
• 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.