Intern - NRad & Nuclear/Systems Engineer - Summer 2027

Commonwealth Fusion Systems•Devens, MA

10d•$25 - $38•Onsite

About The Position

Commonwealth Fusion Systems (CFS) is seeking talented NRad and Nuclear/Systems Engineering Interns to join their team for the Summer 2027 program. CFS interns are highly valued and placed into meaningful and challenging roles. The internship is 13-18 weeks long, with 40-50 hours per week, and offers an hourly salary based on the intern's year in school. Opportunities are available on-site in Devens, MA, though interns are responsible for their own transportation and housing. Specific project assignments and technical skillsets will vary based on team needs. CFS is looking for currently enrolled college students at all levels, from bachelor's to PhD, who are authorized to work in the United States.

Requirements

Pursuing an engineering degree with a focus in Nuclear Engineering or Mechanical Engineering.
Neutron Transport, Neutronics, or a Reactor Theory course completed by the start of the internship.
Experienced in MCNP or OpenMC.
Experience in Mechanical Design through courses, previous internships, or class projects.
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.
Must be authorized to work in the United States for any employer.

Nice To Haves

Prior hands-on experience or internships working in a commercial/research fission plant environment or the naval nuclear power program.
Experienced in CAD and/or Python/ C++.

Responsibilities

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.
Work on projects such as: Neutronics analyses like energy deposition in delicate materials or shielding sensitivity studies for diagnostic design.
Contribute to the computational development of methods and workflows needed to support and optimize different types of neutronics analyses.
Support the interface of Nuclear Engineering and Systems Engineering, working collaboratively with both teams on neutronics analyses and their application to the development of system design.
Work on projects such as: participating in Hazard Identification reviews and evaluation of accident scenarios, development and verification of radiation-related system requirements, and margin budget development, tracking, and support.