Senior Electrical Engineer

Radiant•El Segundo, CA

2d•Onsite

About The Position

Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt failsafe microreactor that can be transported anywhere power is needed and run for up to five years without the need to refuel. 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. Radiant’s unique, practical approach to nuclear development utilizes modern software engineering to rapidly achieve safe, factory-built microreactors that leverage existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor next year at the Idaho National Laboratory, with initial customer deliveries beginning in 2028. Radiant is seeking a talented Senior Electrical Engineer to own designs from requirements capture through operation. The candidate will be directly responsible for components of the nuclear microreactor control and measurement systems. The ideal candidate should be comfortable jumping from designing circuit boards to integration work interfacing with fault-tolerant, off-the-shelf hardware. This role requires collaboration with multi-disciplinary teams designing the nuclear reactor core, fluid heat transfer systems, and structures.

Requirements

Bachelor’s degree in electrical engineering or related field
5+ years of experience designing electrical hardware
Experience designing fault-tolerant and safety critical hardware
Experience with Ethernet, EtherCAT, Modbus, CANbus, RS-422, or other communications protocols
Experience selecting, integrating, and troubleshooting sensors including pressure transducers, RTDs, thermocouples, shaft speed and position sensors, IEPE vibration sensors, and MEMS-based sensors
Experience using electrical design software such as AutoCAD Electrical, Zuken, or similar schematic and wiring design tools
Experience designing, analyzing, and working safely with industrial power systems including 120 VAC, 208 VAC, and 480 VAC equipment, including applicable electrical safety practices
Strong electrical engineering fundamentals
Experience specifying and integrating Variable Frequency Drives (VFDs), soft starters, and motor control centers (MCCs)

Nice To Haves

Experience in electrical architecture make vs. buy trades
Experience with Siemens NX
Experience with PLCs, Twincat, structured text programming
Familiarity with EMI/EMC mitigation techniques and testing
Experience with Python, C/C++, or scripting languages for test automation, data acquisition, or diagnostics
Experience supporting nuclear instrumentation systems
Experience with FMEAs and hazard analysis
Experience with industrial network architecture and deterministic control networks

Responsibilities

Collaborate with multidisciplinary teams to support the architecture, design, implementation, and testing of the microreactor electrical control systems
Design and develop industrial electrical control hardware including schematics, wiring diagrams, harnessing, and integration assemblies
Lead design of fault-tolerant and safety-critical electrical systems, emphasizing reliability, maintainability, and regulatory compliance
Develop and review electrical interface designs between control systems, power equipment, and instrumentation
E nsure designs comply with applicable electrical codes and safety standards including NFPA and NEC requirements
Perform SCCR and Arc Flash calculations

Benefits

Stock: Substantial incentive stock plan for all full-time employees.
Medical: 100% premium coverage for base Silver level plan for employee + 50% premium coverage for dependents. Platinum plans available.
One Medical: Sponsored memberships for eligible employees and their dependents.
Vision: 100% premium coverage for top tier plan + 50% for dependents.
Dental: 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.
Beautiful El Segundo headquarters close to the Pacific Ocean.
Burgeoning satellite offices in Oak Ridge, TN and Washington, D.C., near Capitol Hill.