About the role#
Radiant is hiring a Mechanical Engineer Intern for Summer 2027. You will work on our portable nuclear microreactor project, Kaleidos, at our headquarters in El Segundo, California.
What you'll do#
- Contribute to the design, analysis, and testing of our microreactor.
- Take ownership of deliverables from concept through build and validation, with guidance from senior engineers.
- Collaborate across disciplines to integrate designs and resolve technical challenges.
- Support system-level testing, troubleshooting, and design iteration to accelerate KDU development.
- Communicate results through design reviews, technical reports, and presentations to peers and leadership.
What you'll need#
- Pursuing a BS or MS in Mechanical Engineering, Aerospace Engineering, or a related discipline.
- A strong foundation in engineering first principles, including thermodynamics, fluid mechanics, statics, dynamics, and strength of materials.
- Hands-on experience in design and build through projects, research, labs, or previous internships.
- Proficiency with engineering tools such as CAD, analysis software, and lab instrumentation.
Location & details#
- Location: El Segundo, California.
- Modality: This is an on-site role.
- Term: Summer 2027.
- Employment: Full-time, paid internship.
- Compliance: This position involves access to technology subject to U.S. export controls. Any job offer is contingent upon your capacity to serve in compliance with these controls.
About Radiant
Radiant produces portable nuclear microreactors. The company is based in El Segundo, California and employs between 51 and 200 people. It was founded in 2020. The firm is currently developing a 1 MW failsafe microreactor known as Kaleidos.
How to get in at Radiant
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