• Engineered a real-time, civic-grade transit platform utilizing a full-stack monorepo (Node.js, Express, MongoDB, React, React Native), enabling live GPS fleet tracking and instant dispatcher-to-driver communication via Socket.IO. • Developed a cross-platform mobile rider app (Expo/React Native) featuring Google Places API routing, dynamic fare calculation, QR-code boarding, and "APT Assist"—a custom, offline-capable intent-classification chatbot for automated user support. • Architected secure, role-based web portals for automated dispatching and fleet management, paired with a high-performance public marketing site featuring automated system theming and an interactive 3D hero environment built with React Three Fiber.