AR/VR developers build immersive applications using gaming engines, 3D modelling, physics simulation, and spatial interaction techniques. They develop interfaces for headsets, mobile AR, smart glasses, and haptic systems. Their work requires real-time rendering, shader development, UI/UX for immersive environments, and performance optimisation. They collaborate with designers and researchers to produce intuitive, realistic, and engaging virtual experiences for entertainment, training, education, and enterprise applications. Demand is rising with broader adoption of VR training, digital twins, and metaverse platforms.