About Radiant

Radiant is an El Segundo CA-based startup building the worlds first mass-produced portable nuclear microreactors. The companys 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. Radiants 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.

About the Role

Radiant is seeking a Senior Embedded Engineer with a strong focus on digital signal processing (DSP) to lead the development of signal processing and data acquisition architectures for reactor control systems with a long-term path toward space reactor applications. You will serve as the technical authority for real-time signal processing owning the design and deployment of DSP pipelinesfrom requirements definition and algorithm development through implementation validation and deployment.

Responsibilities and Duties

• Develop real-time signal processing algorithms digital filtering detection estimation and spectral analysis for embedded and FPGA platforms meeting the determinism low latency and fault-tolerance demands of high-reliability nuclear control environments.

• Interface with mixed-signal hardware (ADCs/DACs sensors instrumentation) to ensure accurate sampling low-noise signal conditioning and robust data acquisition.

• Partner with software and hardware teams on co-design translating system-level signal requirements into implementable DSP architectures serving as the technical authority for signal processing integration.

• Define and execute verification plans for DSP algorithms FPGA simulations and embedded system validation including noise characterization and calibration.

Required Qualifications and Skills

• Bachelors degree in Electrical Engineering Computer Engineering Computer Science or a related field.

• 5 years of experience in DSP including filtering signal conditioning estimation real-time signal analysis and algorithm deployment.

• Strong proficiency in embedded C/C

• Experience with real-time operating systems (RTOS).

• Experience with FPGA design and implementation including HDL (VHDL/Verilog) coding and simulation.

• Understanding of analog and mixed-signal systems including ADC/DAC interfacing sampling theory and quantization effects.

• Ability to collaborate across multidisciplinary teams including software hardware and systems engineers.

Desired Qualifications and Skills

• Masters degree or higher in Electrical Engineering Computer Engineering Computer Science or a related field.

• Familiarity with high-reliability or harsh environments (nuclear nuclear instrumentation aerospace defense or industrial) and constraints on determinism latency and fault tolerance.

• Understanding of radiation effects on digital systems and approaches to radiation-tolerant design.

• Experience with sensor data and instrumentation systems including noise characterization calibration and signal extraction.

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

Benefits and Perks

• 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.

Total Compensation and Benefits
Radiant compensates people for impact and invests in those who continue to raise the bar. Radiants new hire compensation package includes base salary substantial equity grants and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance experience education and qualifications and are designed to support continued growth as scope responsibility and impact expand at Radiant.

The best of todays advanced reactor builders dont wait for job postings. They join the winning team. If thats you contact us directly for immediate opportunities: .

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 applicants capacity to serve in compliance with U.S. export controls.

Required Experience:

Senior IC