Senior Controls Systems Engineer

About the Company

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, fail-safe microreactor designed to provide critical power to hospitals, data centers, and remote sites.

Responsibilities

• Serve as Responsible Engineer with full technical ownership of Kaleidos control systems
• Design and implement subsystem control architectures for reactor reactivity, power conversion, and grid interface
• Develop control algorithms, embedded software, and analytic models
• Perform system-level modeling and analysis of coupled linear and nonlinear dynamics
• Lead control system prototyping, simulation, hardware testing, and validation
• Author technical documentation and support regulatory review and licensing
• Collaborate with mechanical, electrical, nuclear, and software engineering teams

Requirements

• Bachelor's or Master's degree in Electrical Engineering, Mechanical Engineering, Physics, Nuclear Engineering, or related field
• 5+ years of experience in dynamic system modeling and control algorithm development
• 5+ years of experience designing and calibrating controllers for linear and nonlinear dynamic systems
• Deep expertise in classical control theory (Stability analysis, PID, Sliding mode, Multivariable control)
• Hands-on experience with observers and estimators for stochastic and nonlinear systems
• Expertise in Monte Carlo analysis and uncertainty quantification
• Familiarity with industrial protocols like EtherNet/IP, EtherCAT, CANOpen, and RS-422/485
• Ability to work 100% onsite in El Segundo, CA

Preferred Qualifications

• PhD in a relevant engineering or physics discipline
• 7+ years of experience in control systems engineering
• Experience with motor controls, battery controls, and power electronics
• Experience with autonomous system diagnostics (FDIR)
• Experience with permanent magnet synchronous motor control (FOC, VSM)
• Experience with turbomachinery or microgrid control