Software Engineer, Radiant Nuclear
New Graduate
+ Stock
More information about location
5 days a week in office (El Segundo, CA)
Making nuclear power portable
Open for applications
Making nuclear power portable
101-200 employees
Open for applications
+ Stock
More information about location
5 days a week in office (El Segundo, CA)
101-200 employees
Company mission
To bring one of the world's first factory-constructed microreactors to market.
Role
Who you are
- Radiant is seeking a driven Software Engineer – New Grad with a strong computer science background
- Bachelor’s degree in computer science, physics, or other technical discipline
- Familiarity with Python, C++, C#, or similar object-oriented programming languages
- Familiarity with software development and documentation best-practices, including version control in Git
Desirable
- Highly self-motivated with strong communication skills
- Experience writing or contributing to simulation tools
- Experience testing software and hardware systems
- Experience with distributed software development and familiarity with common design patterns
- Interest in physics, hardware and electrical engineering
What the job involves
- You will collaborate with mechanical, electrical, and nuclear teams to develop software that keeps simulation and analysis for reactor design, development, and maintenance running smoothly
- You will have an opportunity to work in an interdisciplinary environment with a high degree of ownership and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor
- Create tooling to support simulation software – internal and from third party vendors
- Own several internal software products that support mission-critical analysis
- Lead the development of production software to support data storage and automation of manufactured parts
- Must be willing to work extended hours and weekends as necessary to achieve company goals
- This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls
Our take
To support the clean energy revolution, Radiant Nuclear is developing a portable, containerized nuclear microreactor. Once launched, it will have the potential to provide power to remote parts of the world or act as a backup supply to vital infrastructure such as hospitals and data centers.
Typically, these backup systems are powered by diesel generators - making them extremely bad for the environment. Radiant's microreactors could allow the replacement of these generators whilst supplying the same critical asset support, enabling a substantial reduction in carbon footprint.
Having completed the design phase of the project, Radiant has taken a step closer towards realizing its microreactor (known as Kaleidos). The company intends to test a prototype as early as mid-2026 and has secured considerable funding to support its work towards that goal.
Kirsty
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 6 rounds)
May 2025
$165m
SERIES C
Nov 2024
$100m
SERIES C
Total funding: $320.7m
Company benefits
- Equity: Substantial incentive stock plan for all salaried employees
- Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans
- Vision: 100% coverage + 50% for dependents
- Dental: 100% coverage, orthodontia extra, 50% for dependent
- Flexible PTO policy
- Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits
- Team-bonding company outings, happy hours and in-person camaraderie
- Beautiful El Segundo headquarters close to the Pacific Ocean
Company HQ
El Segundo, CA
Leadership
Doug Bernauer
(CEO)Previously Senior Avionics Systems Engineer at Space Exploration Technologies and Applications Engineer at Rockwell Automation.
Victoria (Baggio) S.
(COO)Began at the company as Head of Operations before becoming COO. Previously a Consultant at Happy Returns by PayPal and Director of Customer Service at McMaster-Carr.
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