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Salary
$46k – $70k per year
Location
In office (Devens)
Seniority
Intern
Employment
Internship

Confirmed on the employer's own hiring board on Oct 28, 2026. First seen by Alion on Oct 26, 2026. Commonwealth Fusion Systems scores A on the Alion truth index.

Overview
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Profile match
Commonwealth Fusion Systems is a commercial fusion energy company headquartered in Devens, Massachusetts, and founded in 2018. The firm specializes in the development of high-temperature superconducting magnets and compact tokamak devices, specifically the SPARC net-energy machine and the ARC commercial power plant. It operates through a strategic partnership with the Massachusetts Institute of Technology and focuses on scaling fusion technology to provide carbon-free, baseload power to global energy markets.

Join the power movement as a Cryogenics Engineering 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 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.

Program Details:

  • 26 week internship
  • 40-50 hours per week with set hourly salary based on year in school
  • Opportunity in Devens, MA. If an intern is going to be on site, 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

What you'll do:

  • Read, develop, and revise key process engineering documents including process flow diagrams (PFDs), piping & instrumentation diagrams (P&IDs), test plans, test procedures, and process controls and human machine interfaces (HMIs)
  • Develop thermohydraulics analysis calculations, tools, models, and reports including Excel calculations, 1-D thermohydraulic models (e.g. EcoSim), computational fluid dynamics models (e,g, COMSOL)
  • Build physical and digital tools to manage and report on project milestones and present results and learnings to key stakeholders, including managing small project budgets
  • Hands-on building and testing. Past examples - flow instrumentation panels, vacuum carts and headers, compression tubing setups, helium leak test configurations, oil removal bakeouts, helium purity measurement and calibration

What we’re looking for:

  • Preferred majors include Chemical Engineering, Mechanical Engineering, Electrical/Software Engineering, and Computer Science
  • Enthusiasm to learn (design and engineering company processes) and collaborate in a group setting
  • Exposure to fluid dynamics and thermodynamics
  • Exposure to programmable logic controllers and electrical schematics
  • Exposure to CAD software
  • Exposure to FEA and/or CFD software
  • Interest in entrepreneurship

Must-have Requirements:

  • 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
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