Real-Time Simulation Engineers design simulation systems that execute deterministically within defined time constraints, often interfacing directly with physical hardware or control software. Their work includes developing real-time models, integrating hardware-in-the-loop or software-in-the-loop setups, and ensuring timing accuracy and stability. They apply real-time operating systems, embedded systems knowledge, and performance optimization techniques. Real-Time Simulation Engineers work in aerospace, automotive, robotics, defense, and industrial automation environments. Globally, demand is strong as real-time simulation is essential for testing safety-critical systems, validating control algorithms, and supporting digital twins and autonomous system development.