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Forge Atomics

Factory-built water-cooled nuclear reactors

Nuclear Engineering Intern Co-op

Mechanical EngineeringUpdated on Nov 13
Internship · Summer 2027, Fall 2027El Segundo, CA, USA$28 - $30 /hr

About the Job

Requirements

  • Must be enrolled in a bachelor's degree program in an engineering, physics, or math discipline by the start of employment.
  • Must have at least 3 months of applied engineering experience; internships and project team experience are strongly preferred.
  • Must be able to comply with U.S. Department of Energy export control regulations governing access to nuclear technology under 10 CFR Part 810.
  • Must have a GPA of 3.5 or above.
  • Must have 12 or more months of experience applying technical skills outside the classroom; prior internships and project team experience are strongly preferred, and exceptional personal projects or laboratory research may substitute.
  • Must be able to work effectively in an integrated collaborative team environment, including frequent interactions with technicians, other engineers, and managers.
  • Must be able to work effectively in a dynamic professional setting with changing needs and requirements.
  • Coursework or research in reactor physics, radiation transport, thermal hydraulics, or health physics is preferred.
  • Experience with reactor physics or radiation transport codes such as OpenMC, MCNP, or Serpent, and scientific computing in Python is preferred.
  • Must be able to work extended hours and weekends as necessary.

Responsibilities

  • Own a well-scoped nuclear analysis end to end, such as criticality, depletion, reactivity coefficients, or shielding, with mentorship from the engineer responsible for that area.
  • Run and extend reactor physics simulations supporting core design, fuel cycle, and reactivity control studies.
  • Support radiation shielding and release analysis against regulatory limits.
  • Build and improve analysis tools and automation that allow a small team to work efficiently.
  • Collaborate daily with fluids, structures, components, and manufacturing engineers to keep the design system-optimized and manufacturable.

Desired Qualifications

  • A GPA of 3.5 or above.
  • At least 12 months of experience applying technical skills outside the classroom; prior internships and project team experience are strongly preferred, while exceptional personal projects or laboratory research may substitute.
  • Coursework or research in reactor physics, radiation transport, thermal hydraulics, or health physics.
  • Experience with reactor physics or radiation transport codes such as OpenMC, MCNP, or Serpent, and scientific computing in Python.

About the Company

Forge Atomics

Factory-built water-cooled nuclear reactors

Forge Atomics designs and builds factory-built, water-cooled nuclear fission reactors to provide reliable, carbon-free baseload power. Its core product is the Ember 25 MWe reactor, with a subscale Ember Mini prototype planned before moving to full-scale deployment. The reactors are manufactured in a factory setting, using proven water-cooled reactor technology with decades of operating experience, and then shipped as modules to site where they are installed, commissioned, and operated. The company aims to lower costs and speed deployment by using mature supply chains and a mass-production approach instead of on-site, bespoke construction. Its safety approach relies on passive safety features designed to make accidents physically unlikely. The ultimate goal is to offer safe, scalable nuclear power that complements or replaces intermittent renewables, improving energy security and reducing environmental impact.

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