Radiant · 8 hours ago
Senior Power Electronics Engineer
El Segundo, CA
Full-time
Onsite
Senior Level, Lead/Staff
8+ years expRadiant is a startup based in El Segundo, CA, focused on developing portable nuclear microreactors. The Senior Power Electronics Engineer will be responsible for designing and developing power electronics for a nuclear-driven high-speed generator, including high-voltage drives and inverters, while collaborating with various engineering teams and partners.
Clean EnergyEnergyEnergy EfficiencyRenewable Energy
No H1B
Responsibilities
Design and develop power electronics for a nuclear power generator
Build detailed schematics, select components, PCBA layout, prototype, and validate hardware
Apply EMI/EMC strategies and underlying physics to engineering problems
Utilize expertise in design and validation of gate drivers, power stages, magnetics, and controls
Conduct modeling and detailed simulation of inverters
Own the design and build a fully functioning inverter autonomously
Perform circuit formal analysis, e.g., de-rating and worst-case circuit analysis
Optimize loss, efficiency, and conduct thermal analysis of the inverter
Qualification
Required
Bachelor's degree in Electrical Engineering, specializing in power electronics
8+ years of design experience designing high voltage and high power electronics
Preferred
Expert with high voltage power semiconductor selection (Si/SiC/GaN, IGBT, Diodes, MOSFETs), gate driver, and protection circuit design
Strong understanding of different PWM switching techniques, DPWM, ZCS, ZVS
Expert with at least one of the common power electronics tools such as PLECS, PSCAD, dSPICE, PSIM, or Simplorer
Solid understanding of capacitor and super-capacitor design and selection, such as electrolytic, film, ceramic, and tantalum
Proficiency in EMI/EMC filter design for stability, noise rejection, and surviving threat signals
Startup experience or ability to work in a fast-paced development environment
Demonstrated experience in embedded programming with C/C++
Benefits
Substantial incentive stock plan for all full-time employees.
100% premium coverage for base Silver level plan for employee + 50% premium coverage for dependents. Platinum plans available.
Sponsored memberships for eligible employees and their dependents.
100% premium coverage for top tier plan + 50% for dependents.
100% premium coverage for top tier plan (including orthodontia) + 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.
Company
Radiant
Radiant develops portable nuclear microreactors designed to generate electricity and heat in a compact, factory-built form.
51-200 employees
Funding
Current Stage
Late StageTotal Funding
$518.82MKey Investors
Andreessen HorowitzUnion Square Ventures
2025-12-17Series D· $300M
2024-11-14Series C· $165M
2023-04-18Series B· $40M
Leadership Team
Doug Bernauer
Chief Executive Officer
Recent News
2026-01-07
The Motley Fool
2026-01-04
Globe and Mail
2026-01-03
Company data provided by crunchbase