Software Engineer, Radiant Nuclear

Simulation

Salary not provided

+ incentive stock plan

Python
C#
C++
Git
Mid and Senior level
Los Angeles

More information about location

Office located in El Segundo, CA

Radiant Nuclear

Making nuclear power portable

Job no longer available

Radiant Nuclear

Making nuclear power portable

101-200 employees

B2BEnergySustainabilityManufacturing

Job no longer available

Salary not provided

+ incentive stock plan

Python
C#
C++
Git
Mid and Senior level
Los Angeles

More information about location

Office located in El Segundo, CA

101-200 employees

B2BEnergySustainabilityManufacturing

Company mission

To bring one of the world's first factory-constructed microreactors to market.

Role

Who you are

  • Bachelor’s degree in engineering, physics, or similar field from an accredited institution
  • 4+ years of professional experience in Python, C++, C#, or similar object-oriented programming languages
  • Familiarity with software development and documentation best-practices, including version control in Git
  • Must be willing to work extended hours and weekends as necessary to achieve company goals
  • Must work 100% onsite at El Segundo HQ

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

  • Radiant is seeking a highly driven Software Engineer with a strong physics or mechanical engineering background
  • You will collaborate with mechanical, electrical, and nuclear teams to simulate physical systems with an appropriate degree of fidelity, write software that can be deployed to production hardware, and improve our simulation and test software stack, including our cutting-edge, custom-built Digital Twin system
  • 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
  • Develop models to simulate reactor physics and other Kaleidos systems
  • Improve representations of reactor components in the digital twin
  • Collaborate across teams to accelerate software in the loop and hardware-in-the-loop testing
  • Own mission-critical internal products and tooling

Share this job

View 8 more jobs at Radiant Nuclear

Company

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

Funding (last 2 of 6 rounds)

May 2025

$165m

SERIES C

Nov 2024

$100m

SERIES C

Total funding: $320.7m

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 headshot

Kirsty

Company Specialist at Welcome to the Jungle