Lead Electrical Motor Design Engineer

Radiant Industries • El Segundo, CA

1d • Onsite

About The Position

Radiant is seeking a Lead Electrical Motor Design Engineer to own the architecture, technical direction, and execution of high-speed alternators and primary loop motors for our nuclear-driven power generation systems. This role leads the electric machine design function responsible for our 1MW high-speed rotating machinery central to commercializing Earth’s first mass-produced nuclear reactors. You will set the technical vision for motor design while guiding structural, thermal, and system integration efforts. As a player-coach, you will both contribute directly to design work and mentor a team of engineers to deliver safe, reliable, and production-ready generator systems. This is a hands-on technical leadership role with significant cross-functional influence.

Requirements

• B.S. in Electrical Engineering or Mechanical Engineering with specialization in electric machines or rotating machinery
• 5+ years of experience designing high-voltage, high-power electric motors and/or generators
• Demonstrated expertise in permanent magnet motor design for +1kV, +1MW applications operating at up to 40,000 rpm
• Strong proficiency with electromagnetic analysis tools (Ansys Motor-CAD, Maxwell, or equivalent)
• Experience with structural and thermal analysis of high-speed rotating machinery
• Deep understanding of motor–inverter interactions and power electronics integration
• Experience leading complex electromechanical development efforts
• Hands-on experience with assembly, integration, and testing of electric machines

Nice To Haves

• 10+ years of generator design experience
• M.S. or Ph.D. in Electrical or Mechanical Engineering
• Knowledge of motor control systems including SVM
• Experience scaling hardware from prototype to production
• Prior experience leading small, high-performance engineering teams
• Experience defining engineering standards and technical processes

Responsibilities

• Own system-level architecture and technical roadmap for 1MW, 30krpm alternators and primary loop motors
• Lead electromagnetic design of permanent magnet machines for closed-loop Brayton cycle power systems
• Define and flow down generator requirements from system-level constraints
• Establish best practices for modeling, simulation, validation, and documentation
• Make key technical decisions on topology selection, magnetics, insulation systems, cooling strategies, and manufacturability
• Ensure designs meet performance, reliability, safety, and regulatory requirements
• Lead and mentor a team of motor design engineers
• Conduct design reviews and provide guidance on electromagnetic, structural, and thermal analysis
• Drive technical prioritization, risk management, and execution planning
• Build engineering rigor, documentation standards, and repeatable development processes
• Partner closely with turbomachinery, power electronics, thermal, packaging, and software teams
• Optimize electromechanical interfaces between generator, inverter, and control systems
• Collaborate with manufacturing to transition from prototype to scalable production
• Own technical engagement with external vendors and suppliers
• Oversee development and qualification testing of electric machines
• Guide bench, dynamic, and system-level testing campaigns
• Lead root cause analysis and rapid design iteration cycles
• Maintain hands-on involvement in assembly, integration, and troubleshooting as needed

Benefits

• Substantial incentive stock plan for all full-time employees.
• 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
• Sponsored memberships for employees and their dependents.
• 100% top tier plan coverage + 50% for dependents.
• 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior