Senior Simulation Engineer for Nuclear Systems

Ecotal; Hawthorne (CA); On-site; USD 140,000 - 180,000; Full time

Job summary

Ecotal is seeking a Simulation Software Engineer to design and develop high-fidelity simulators that model physics and hardware systems. You will work with hardware, chemical, and electrical engineers to accelerate development and validate that our systems behave as designed.

This ownership role defines architecture, sets standards, and ensures correctness and reliability of mission-critical simulation systems across large, distributed setups.

Qualifications

• BS in Computer Science, Electrical Engineering, Mechanical Engineering, Physics, or related field.
• 7+ years building simulators for complex, real-world systems.
• Strong C++ and/or Python skills with experience managing large data flows.
• Deep understanding of distributed systems, control systems, or physical process modeling.
• Experience validating simulations against empirical data or hardware-in-the-loop setups.
• Uncompromising standards for correctness, robustness, and engineering rigor.

Responsibilities

• Design and own simulators for large, distributed systems — modeling complex interactions, feedback loops, and failure modes across nominal and off-nominal conditions.
• Build scalable simulation infrastructure capable of high-volume scenario generation and automated validation.
• Define correctness criteria and rigorously validate simulation outputs against empirical test and real-world data.
• Partner closely with systems and hardware teams to ensure simulations accurately reflect physical behavior.
• Set the architectural and engineering standards for simulation across the organization.

Skills

C++

Python

Distributed systems

Control theory

Hardware-in-the-loop

Data validation

System architecture

Education

Bachelor's degree in CS/EE/ME/Physics

Job description

Ecotal is seeking a Simulation Software Engineer to design and develop high-fidelity simulators that model physics and hardware systems. You will work with hardware, chemical, and electrical engineers to accelerate development and validate that our systems behave as designed.

This ownership role defines architecture, sets standards, and ensures correctness and reliability of mission-critical simulation systems across large, distributed setups.