Principal FPGA Engineer, Radiant Nuclear

• Bachelor's degree in computer engineering, electrical engineering, or related field; advanced degree preferred
• 10+ years of progressive FPGA development experience with demonstrated impact at a principal or staff engineer level
• Expert-level proficiency in VHDL, SystemVerilog, or equivalent HDL, with a track record of setting team-wide design standards
• Mastery of full-cycle FPGA development — RTL architecture, simulation, synthesis, timing closure, and hardware bring-up — across multiple platform generations
• Deep experience with multi-clock domain design, fault-tolerant architectures, and safety-critical systems

Desirable

• Radiant is seeking a Principal FPGA Engineer to serve as the technical authority for FPGA development across our Embedded Systems team
• You will define the architecture, methodology, and standards governing FPGA design for a safety-critical instrumentation and control system responsible for real-time reactor control, sensor and actuator handling, and communications
• This role operates at the intersection of deep technical ownership and organizational influence, shaping how Radiant approaches FPGA development as we bring the first commercial microreactor to market
• Define and own the overall FPGA architecture strategy across Radiant's instrumentation and control systems, ensuring designs scale with evolving product and regulatory requirements
• Establish org-wide FPGA development standards, toolchain selections, and verification methodologies
• Drive the most complex technical challenges — timing closure at scale, fault-tolerant design, multi-domain clock architectures — and set the precedent for how they are solved
• Serve as the primary technical interface across Embedded Systems, hardware, software, and systems engineering, ensuring cohesive system-level design decisions
• Lead architecture and design reviews, setting the quality bar for RTL, simulation, synthesis, and validation deliverables
• Partner with engineering leadership to define hiring criteria and inform technical roadmap decisions
• Mentor senior and mid-level FPGA engineers, building long-term technical depth across the organization