About the Job
Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios.
FPGA Engineer
Radiant is seeking a driven FPGA Engineer to join our Nuclear Robotics team. You will be responsible for designing, developing, and validating FPGAs used in the reactor instrumentation and control system for safety critical applications, sensor and actuator control, and communication systems. This role requires working with hardware engineers, embedded software engineers, systems engineers, and control engineers in a cross-functional setting to develop cohesive designs that meet the demands of controlling and monitoring fission reactors. You will be a key contributor in testing the first commercial reactor design in over 50 years by 2026.
This role is based onsite full-time in El Segundo, CA.
Responsibilities and Duties:
Own the design of sensor processing systems from concept to integration.
Implement logic designs in VHDL.
Integrate designs onto FPGA/SoC platforms.
Write automated verification tests.
Work directly with embedded software engineers to deliver complete products.
Required Skills and Qualifications:
Bachelor’s degree in computer engineering, electrical engineering, or related STEM field.
5+ years of experience working with FPGAs.
Knowledge of VHDL.
Experience troubleshooting timing closure issues.
Experience with multi-clock designs.
Understanding of verification methodologies and frameworks.
Desired Skills and Qualifications:
Experience with embedded C/C++.
Experience with Linux and bash shell scripting.
Experience with Docker.
Excellent documentation skills and ability to collaborate in multidisciplinary environments.
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.
Total Compensation and Benefits
Radiant's new hire compensation package includes base salary, substantial equity grants, and comprehensive benefits. Total compensation and level are determined through a holistic evaluation of your interview performance, experience, education, and qualifications.
Benefits and Perks for Eligible Employees:
Stock: Substantial incentive stock plan for all full-time 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/HSA are offered as employee contributed benefits.
8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
Daily catered lunch. Free snacks and drinks.
Flexible PTO policy. Remote workday allocation.
Company and team-bonding events, happy hours and in-person camaraderie.
Beautiful El Segundo headquarters close to the Pacific Ocean.
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.
About the Company

Radiant
Radiant is a clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios.
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