Radiant is seeking a Software Engineering Manager for Simulation to build and lead the engineering team responsible for reactor physics modeling, thermal-hydraulics simulations, and Digital Twin development. In this role, you will scale a high-performing team while maintaining technical depth, ensuring our simulation infrastructure enables Radiant to design, test, and validate reactor systems—accelerating our path to commercialization.
Requirements
- 7+ years of professional software engineering experience with significant depth in simulation, scientific computing, or physics-based modeling.
- Strong technical background in programming languages such as Python, Rust, C, or C/C++, with the ability to review code and guide architectural decisions.
- Experience building and scaling highly technical engineering teams.
- Familiarity with simulation tools, physics-based modeling, numerical methods, or computational science sufficient to guide technical strategy.
- Familiarity with numerical solvers, visualization frameworks, and automated testing approaches for scientific software.
- Strong foundation in software engineering best practices, including version control, code review, and CI/CD pipelines.
- Proven ability to balance hands-on technical contributions with team leadership and people development.
Responsibilities
- Build, lead, and mentor a team of simulation engineers developing thermal, hydraulic, and nuclear models for reactor and reactor subsystem physics.
- Guide technical architecture and implementation for simulation systems.
- Scale software infrastructure to support Digital Twin simulation, visualization, and data processing capabilities.
- Define and own the technical roadmap for thermal and safety analysis simulation.
- Develop and execute a strategy for model tuning as models and model frameworks change.
- Foster a culture of technical excellence by establishing best practices for simulation software development, code quality, and testing.
- Collaborate cross-functionally with Hardware, Nuclear, and Electrical engineering teams to accelerate software-in-the-loop and hardware-in-the-loop testing capabilities.
Other
- 2+ years of people management experience leading engineering teams.
- Must work 100% onsite at El Segundo HQ.
- Must be willing to work extended hours and weekends as necessary to accomplish our mission.
- Unfortunately, we are unable to provide visa sponsorship at this time.
- This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.
