Principal Electrical Engineer (Electronics)

Join Radiant, a pioneering company in the field of nuclear energy. As a Principal Electrical Engineer, you will define and lead the electrical architecture for our commercial microreactor, Kaleidos. Your work will encompass full-stack PCB development, mixed-signal design, high-speed interfaces, power distribution, and signal integrity. You will serve as the technical lead for custom hardware, setting design standards, driving architecture decisions, and owning high-reliability, low-noise board development. This is an exciting opportunity to be at the forefront of clean energy technology.

• Define and lead the electrical architecture for Kaleidos, a commercial microreactor, including full-stack PCB development and mixed-signal design.
• Serve as the technical lead for custom hardware, setting design standards, driving architecture decisions, and owning high-reliability, low-noise board development.
• Design low-noise analog front-end circuits, own schematic capture, component selection, and layout, and bring up, debug, and validate hardware hands-on.

• Solid command of signal integrity, power integrity, grounding strategies, and EMI/EMC mitigation
• Bachelor’s degree in Electrical Engineering or a related field
• Prior experience shipping hardware you designed, carried from requirements through layout, bring-up, and qualification into production or field deployment
• Hands-on experience with board bring-up, debugging, and lab instrumentation (oscilloscopes, spectrum analyzers, VNAs)
• Demonstrated experience setting electrical architecture direction and driving decisions across complex, multi-disciplinary programs
• Familiarity with high-speed interfaces (SPI, I2C, UART, Ethernet) and their layout constraints
• Strong experience with schematic capture and PCB layout tools (Altium, Cadence, or similar)
• 8+ years designing custom PCBs, including multilayer and mixed-signal boards
• Experience designing for high-reliability or harsh environments (nuclear, aerospace, defense, or industrial)
• Analog and mixed-signal design experience, including sensor interfaces, ADC/DAC integration, and low-noise practices
• Experience with power electronics or power distribution design
• Familiarity with nuclear instrumentation or detector interface electronics
• Exposure to FPGA or embedded systems supporting hardware/software co-design
• Master’s degree in Electrical Engineering or a related field
• Familiarity with radiation effects and radiation-tolerant electronics design
• Experience with DFM, DFT, and production bring-up