Operations research engineers develop analytical models using linear programming, stochastic modelling, network optimisation, queueing theory, simulation, and machine learning. They solve problems across logistics, manufacturing, scheduling, inventory, transport, and service systems. They work in supply chains, aviation, finance, defence, healthcare, and tech companies. Their expertise enables data-driven decision-making and performance optimisation. Demand is rising due to digital transformation, algorithmic supply chains, and large-scale optimisation challenges.