Senior Embedded Software Engineer

About Radiant

Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory next year, with initial customer deliveries beginning in 2028.

Senior Embedded Software Engineer

Radiant is seeking a Senior Embedded Software Engineer to design, develop, and test embedded software for instrumentation and control (I&C) systems. You will develop mission critical, highly performant embedded systems to interface with sensors and actuators. The candidate will be comfortable working in early design architectural stages and owning designs through production. You will have the opportunity to build mission critical software control systems for the first commercialized portable nuclear microreactor.

Responsibilities And Duties

• Design and build reliable, fault-tolerant embedded software for production hardware.
• Develop and bring up new drivers for I&C hardware.
• Lead design reviews, review and iterate on feedback.
• Be a responsible engineer from architectural design through test, build and implementation.
• Create robust testing plans and documentation.
  
  

Required Qualifications And Skills

• Bachelor’s degree in computer engineering, computer science, electrical engineering, or similar discipline from accredited institution.
• 5+ years of industry experience on embedded software, including 1+ year of design and architecture experience.
• Experience with an RTOS (Zephyr, NuttX, ThreadX, etc).
• Proficient in C and C++
  
  

Desired Qualifications And Skills

• Experience with Zephyr RTOS.
• Experience working with Simulink Autocode C++ export.
• Experience with CMake.
• Experience with FPGAs.
• Comfortable reading hardware schematics.
• Comfortable taking ownership of responsibilities and full design.
• Comfortable working autonomously and proactively in day-to-day activities.
• Strong communication with peers and management.
  
  

Benefits

• Cross-functional team with embedded software, FPGA, and hardware all together.
• Opportunities for technical growth outside of pure software.
• Opportunity to own designs from concept to completion.
  
  

Additional Requirements

• Must be willing to work extended hours and weekends as necessary to accomplish our mission.
• Must work 100% onsite at El Segundo HQ.
  
  

Compensation Range: $133,500 - $218,925