Skip to main content

Intern - Nuclear Engineer - Summer 2027

Commonwealth Fusion SystemsResearch
Pay
$25–$38/hour
Work mode
On-site
Internship
Location
Devens, MA
Education
Bachelor's

Devens, MA at a glance

Rent
#4 of 51
$2,230/mo+42% vs US avg
Weather
#15 of 51
185 mild days0 hot · 107 cold
Income tax
#8 of 51
9% top rateMassachusetts

What you need

  • Pursuing Nuclear Engineering degree
  • Completed Neutron Transport or Neutronics course
  • Experienced in MCNP or OpenMC
  • Strong communication and problem-solving skills
  • Authorized to work in the US

What you'll do

  • Perform neutronics analyses for SPARC and ARC design
  • Collaborate with Nuclear Engineering team on calculations
  • Contribute to computational methods and workflows
  • Support diagnostic design and shielding studies
  • Conduct energy deposition and sensitivity studies
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 we're working with policymakers, suppliers, and many others to build the energy industry of the future.
 
We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading 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 Nuclear Engineering Intern
 
We are looking for a talented Nuclear Engineering Intern to join our team! CFS interns are highly valued within the organization and placed into meaningful and challenging roles.

Program Details:

  • 13-18 week internship
  • 40-50 hours per week with set hourly salary based on year in school
  • Opportunities on site 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:

  • The intern will work on projects such as, but not be limited to: Neutronics analyses such as energy deposition in delicate materials or shielding sensitivity studies for diagnostic design 
  • They will collaborate with engineers on the Nuclear Engineering team to do neutronics calculations (heating, activation, flux, dose, etc) to support the design and operation of SPARC, the scoping of ARC, and any other nuclear engineering needed
  • They will have opportunities to contribute to the computational development of method and workflows needed to support and optimize different types of neutronics analyses
    •  

    What we’re looking for:

    • Pursuing an engineering degree with focus in the field of Nuclear Engineering - required
    • Have complete by the start of their internship Neutron Transport or Neutronics or a Reactor Theory course
    • Experienced in MCNP or OpenMC 
    • Strong communication skills and a willingness to learn 
    • Must work well in a team 
    • Must be highly self-motivated and driven to execute quickly with excellent troubleshooting/problem-solving skills 
    • Optional: experienced in CAD and/or Python / C++, Neutronics Methods (Monte Carlo or Deterministic)

    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
    • #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.
     
    This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.

    Optimize your resume for this job

    Get a match score and the keywords you're missing

    Optimize resume

    About Commonwealth Fusion Systems

    Commonwealth Fusion Systems (CFS) is building SPARC, the world's first net-energy fusion machine. Spun out of MIT, they are commercializing compact fusion power plants using high-temperature superconducting magnets to deliver clean, limitless energy.

    Company profileWebsite More Research jobs

    See full Research compensation at Commonwealth Fusion Systems

    Real salary data from H1B filings, public bands, and verified community submissions.

    Similar Research roles

    Blue Origin
    Summer 2027 Materials & Processes Internship - Graduate
    Kent, WA +2 Internship
    Research
    1 month ago
    Helion Energy
    R&D Hardware Test & Development Manager
    Everett, WA$162K - $192K Full Time
    Research
    7 months ago
    Physical Intelligence
    Research Internships
    San Francisco, CA Internship
    Research
    4 months ago
    All Research jobs
    Browse more jobs
    Intern - Nuclear Engineer - Summer 2027
    $25–$38/hour · Commonwealth Fusion Systems
    Apply