NRad & Nuclear/Systems Engineering Intern

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    Commonwealth Fusion Systems

    501-1,000 employeesFounded 2018Devens, MassachusettsEnergy Technology
    Actively hiringPaidSummer 2027Energy Technology
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    About the role#

    Commonwealth Fusion Systems is looking for NRad and Nuclear/Systems Engineering interns to join our team for the Summer 2027 term. You will work alongside our Nuclear Engineering team on projects that support the design and operation of our fusion power plants. This is a full-time, on-site role based in Devens, Massachusetts.

    What you'll do#

    • Collaborate on neutronics calculations including heating, activation, flux, and dose assessments.
    • Perform analyses such as energy deposition in materials and shielding sensitivity studies for diagnostic design.
    • Develop and improve computational methods and workflows for neutronics analysis.
    • Bridge the gap between the Nuclear Engineering and Systems Engineering teams.
    • Participate in Hazard Identification reviews and evaluate potential accident scenarios.
    • Develop and verify radiation-related system requirements.
    • Manage and track margin budgets.
    • Adhere to safety protocols, including mitigating industrial hazards like high voltage, cryogenics, and strong magnets.

    What you'll need#

    • Currently pursuing an engineering degree in Nuclear or Mechanical Engineering.
    • Completed a course in Neutron Transport, Neutronics, or Reactor Theory before the start of the internship.
    • Experience with MCNP or OpenMC.
    • Mechanical design experience from coursework, projects, or previous internships.
    • Strong troubleshooting and problem-solving skills.
    • Ability to work well in a team environment.
    • Self-motivation and a drive to execute tasks quickly.
    • Prior hands-on experience in a commercial or research fission plant, or the naval nuclear power program.
    • Ability to perform tasks like sitting or standing for extended periods and a willingness to work occasional nights, weekends, or on-call hours.
    • Authorization to work in the United States.

    Location & details#

    • Location: Devens, Massachusetts.
    • Modality: On-site.
    • Term: Summer 2027 (13-18 weeks).
    • Commitment: 40-50 hours per week.
    • Compensation: Paid hourly based on year in school (USD 25-38 per hour).
    • Note: Interns are responsible for their own housing and transportation.

    About Commonwealth Fusion Systems

    Commonwealth Fusion Systems develops fusion power plants to supply clean energy. Founded in 2018 and based in Devens, Massachusetts, the company employs between 501 and 1,000 people. It specializes in energy technology and has created high-temperature superconducting magnets to support commercial fusion. The organization operates as a private entity.

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