Introduction to Data Science and Artificial Intelligence Operational Data Analytics Analysis of 62M+ operational trajectory records using Python, SQL, and data engineering pipelines. I-MATE Real-time AI decision-support system for aircraft pushback scheduling at Singapore Changi Airport. OpenTaxi Open-source airport surface movement simulator for path planning, conflict resolution, and reinforcement learning research. Surface Metering & IG-RL Graph-based reinforcement learning for multi-agent aircraft surface movement optimisation. Real-Time Air Traffic Control RADAR Simulator ATC Tower Operations and Flight Sequencing