Project description. Built a full-stack AI-powered chat platform with real-time messaging, conversation management, and LLM-based AI assistant for response drafting and summarization. Features include end-to-end encrypted private spaces, multi-channel messaging, file sharing, and contact management. Developed scalable REST APIs and WebSocket backend for real-time delivery. Integrated OpenAI API for intelligent in-chat features. Designed clean, responsive UI with React and deployed on AWS with CI/CD pipeline via GitHub Actions.