Radiant · 18 hours ago
Senior Advanced Controls Systems Engineer
El Segundo, CA
Full-time
Onsite
Senior Level, Lead/Staff
10+ years expRadiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. They are seeking a Senior Advanced Controls Systems Engineer to lead the design, implementation, and validation of autonomous control systems for nuclear microreactors.
Clean EnergyEnergyEnergy EfficiencyRenewable Energy
No H1B
U.S. Citizen Only
Responsibilities
Serve as Responsible Engineer with full technical ownership of Kaleidos control systems, including generator, supervisory, and plant-level controls
Design and implement subsystem control architectures, including Reactor reactivity control mechanisms, Electrical power conversion and grid interface controls, Generator and alternator speed control (FOC, SVM)
Develop control algorithms, embedded software, and analytic models to derive and flow down requirements to components and subsystems
Perform system-level modeling and analysis of coupled linear and nonlinear dynamics
Lead control system prototyping, simulation, hardware testing, validation, and verification activities
Develop and execute methods for analyzing control system performance, robustness, and stability
Review and analyze test data to validate control performance and inform design iteration
Author technical documentation and support regulatory review and licensing of control systems
Collaborate closely with mechanical, electrical, nuclear, and software engineering teams to ensure successful system integration
Qualification
Required
10+ years of experience in dynamic system modeling, control algorithm development, simulation, testing, and auto-code generation using MATLAB/Simulink, including deployment to embedded targets
5+ years of experience designing, implementing, and calibrating controllers for linear and nonlinear dynamic systems
Deep expertise in classical control theory, including: Stability analysis, On/off and PID control, Sliding mode control, Multivariable control, Gain scheduling, Reference tracking, bandwidth design, controllability, and observability analysis
Strong expertise in advanced and nonlinear control, including Nonlinear system modeling and stability analysis (Lyapunov methods), Optimal control (LQR, LQG, MPC), Adaptive control (MRAC, STR), Robust control methods
Hands-on experience designing controllers and observers for stochastic systems
Hands-on experience designing observers and estimators for linear and nonlinear systems
Experience modeling, simulating, and testing complex coupled dynamic systems
Expertise in Monte Carlo analysis, uncertainty quantification, and system identification
Familiarity with industrial and embedded communication protocols, including EtherNet/IP, EtherCAT, CANOpen, Ethernet, and RS-422/485
Preferred
PhD in Electrical Engineering, Mechanical Engineering, Physics, Nuclear Engineering, or a related discipline
8+ years of experience in control systems engineering
Hands-on experience designing nonlinear control systems for autonomous platforms, including GNC systems, autonomous driving, or robotics
Experience with autonomous system diagnostics, including fault detection, isolation, and recovery (FDIR)
Experience with permanent magnet synchronous motor control, including FOC, VSM, and sensorless techniques
Experience with turbomachinery control, including turbines or jet engines
Experience with microgrid control and multi-source power systems
Benefits
Substantial incentive stock plan for all full-time employees.
100% premium coverage for base Silver level plan for employee + 50% premium coverage for dependents. Platinum plans available.
Sponsored memberships for eligible employees and their dependents.
100% premium coverage for top tier plan + 50% for dependents.
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.
Company
Radiant
Radiant develops portable nuclear microreactors designed to generate electricity and heat in a compact, factory-built form.
51-200 employees
Funding
Current Stage
Late StageTotal Funding
$518.82MKey Investors
Andreessen HorowitzUnion Square Ventures
2025-12-17Series D· $300M
2024-11-14Series C· $165M
2023-04-18Series B· $40M
Leadership Team
Doug Bernauer
Chief Executive Officer
Recent News
2026-01-07
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2026-01-04
Globe and Mail
2026-01-03
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