Join Radiant as a Nuclear Engineer, Core Physics, designing testing operations for innovative portable nuclear microreactors.
Posted by employer 2 months ago
First seen on Joblaze 1 month ago
Last verified on the company career page 1 day ago
Skills & Technologies
Requirements
- Experience
- 2–4 years
- Education
- Bachelor's degree
Not disclosed in this posting: compensation, visa sponsorship.
Benefits
Joblaze summary
The Nuclear Engineer, Core Physics at Radiant focuses on designing and implementing testing operations for the company's innovative microreactor, Kaleidos. This role requires expertise in reactor operations, radiation transport methods, and thermal hydraulics, with a strong emphasis on safety and procedural development. Ideal candidates will have a background in nuclear engineering and at least two years of relevant experience, particularly those who thrive in a hands-on, collaborative environment. Radiant, a startup in the nuclear sector, is poised for significant advancements as it prepares for its first reactor demonstration.
Joblaze insights
Quick facts
- Is the Nuclear Engineer, Core Physics role remote?
- No — this is an on-site role in El Segundo, CA.
- How much experience is required?
- 2–4 years of relevant experience for this Nuclear Engineer, Core Physics role.
- Where is the role based?
- Radiant is hiring for this position in El Segundo, CA.
- What's the tech stack?
- Joblaze extracted these technologies from the posting: MCNP, Nuclear Engineering, OpenMC, Serpent, radiation transport.
- What seniority level is this role?
- Radiant targets mid-level candidates for this position.
- Is this full-time or contract?
- Full-time for this Nuclear Engineer, Core Physics role at Radiant.
From the original posting
About the Role
Radiant is a seeking a Nuclear Engineer, Core Physics responsible for designing and implementing nuclear-specific testing operations at our 2026 demonstration. You will be responsible for the design of a large portion of the test campaign, which includes providing analysis to verify that the proposed testing is both safe and meets the test’s objectives. This position will work closely with nuclear engineers to establish test success criteria and systems / operations engineers to implement written procedures.
Responsibilities & Duties:
Collect testing requirements, objectives, and success criteria from nuclear engineers.
Develop procedures that satisfy test requirements within the operational bounds of Kaleidos.
Perform various reactor physics calculations (neutronic and transient analyses) to verify proposed testing sequence addresses all requirements.
Document testing procedures and support operator training and control room GUI development.
Required Qualifications & Skills:
Bachelor’s degree in nuclear engineering or equivalent degree from an accredited institution.
2+ years of experience with reactor operations.
Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent.
Knowledge of thermal hydraulic fundamentals.
Desired Qualifications & Skills:
4+ years of experience with reactor operations.
Direct experience as a reactor operator of an existing nuclear reactor.
Hands-on experience in developing technical procedures, human factors engineering, or operational interface design.
Additional Requirements:
Must be willing to work extended hours and weekends as necessary to accomplish our mission.
Benefits and Perks
Stock: Substantial incentive stock plan for all full-time employees.
Daily catered lunch. Free snacks and drinks.
Flexible PTO policy. Remote workday allocation.
Standard company text repeated across Radiant's postings is omitted here.