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 this summer with initial customer deliveries beginning in 2028.

About the Role

Radiant is seeking an Engineering Manager Electrical Systems to lead the electrical engineering team responsible for test infrastructure and system integration for Kaleidos Radiants commercial microreactor unit targeted for deployment in 2028. You will manage a team of electrical engineers while owning cross-functional stakeholder relationships and driving execution from early architecture through hardware bring-up testing and commissioning. The ideal candidate brings deep electrical engineering expertise proven people management experience and a track record of delivering complex hardware programs on tight timelines.

Responsibilities & Duties

• Lead and grow a team of electrical engineers owning hiring performance management and technical development.

• Own electrical and software integration requirements spanning power distribution signal conditioning sensor mapping actuator interfaces and device simulation.

• Manage schedule budget and vendor relationships for electrical hardware and integration activities.

• Drive electrical validation strategy; establish test procedures methodologies and best practices across the team.

• Own cross-functional alignment with embedded controls software and mechanical engineering teams.

• Oversee test infrastructure build-out and establish the test environment as a foundational asset ahead of the 2028 deployment target.

• Lead design reviews and communicate technical decisions to cross-functional stakeholders and leadership.

Required Qualifications

• BS in Electrical Engineering or related discipline.

• 8 years of progressive electrical engineering experience including hands-on hardware design integration and test.

• 2 years of engineering management experience including hiring and team development.

• Demonstrated ability to drive programs with significant scope and ambiguity under tight timelines.

• Experience with DAQ and test systems (e.g. NI PXI dSpace Speedgoat or similar).

• Proficiency with LabVIEW TestStand and at least one scripting language (Python C C# or similar).

• Strong electrical and software debugging and root cause analysis skills.

Desired Qualifications

• MS or PhD in Electrical Engineering or a related discipline.

• 4 years of engineering management experience including hiring and team development.

• Familiarity with real-time simulation systems and/or FPGA-based hardware.

• Experience with controls fundamentals and software testing processes.

• Background in high-reliability safety-critical or regulated industry environments (aerospace defense nuclear medical or automotive).

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.

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:

Manager