Radiant Industries is an El Segundo, CA-based startup developing Kaleidos, a portable, containerized nuclear microreactor. Portable nuclear power with rapid deploy capability can replace diesel generators used today to provide critical asset support for hospitals, datacenters, and military bases or to power microgrids at remote sites. Radiant’s unique, practical approach to nuclear development utilizes modern software engineering to rapidly achieve safe, factory-constructable microreactors leveraging existing, well-qualified materials. Radiant is on a fast track to demonstrate the first fueled operation of a new commercial nuclear reactor design, just two years from now.

Senior Embedded Software Engineer

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

Responsibilities and Duties:

Design and build reliable, fault-tolerant firmware for test systems and production hardware.
Develop and bring up real-time operating systems and drivers for I&C modules.
Lead design reviews, review and iterate on feedback, and partner closely with cross-functional teams in nuclear, thermomechanical, and electrical.
Be a responsible engineer from architectural design through test, build and implementation.
Optimize and build diligence into 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 firmware, including 1+ year of design and architecture experience.
Proficient in C++ and Python.

Desired Qualifications and Skills:

Experience with ThreadX or RISC-V.
Experience working with instrumentation and control systems.
Experience with FPGAs.
Comfortable taking extreme ownership of responsibilities and domain.
Strong communication across interdisciplinary teams and distilling deep technical topics to non-technical audiences.
Comfortable working autonomously and proactively in day-to-day activities.

Employee Benefits for Eligible Employees:

Stock: Substantial incentive stock plan for all full time, salaried employees.
Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
One Medical: Sponsored memberships for employees and their dependents.
Vision: 100% top tier plan coverage + 50% for dependents.
Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.
Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.
Free snacks and drinks onsite.
Flexible PTO policy.

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.

Unfortunately, we are unable to provide visa sponsorship at this time. 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.

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