Description: Developed a real-time messaging chat system for seamless communication between users. Created a ticket management system to efficiently track and resolve customer issues. Implemented a meeting calendar and scheduling functionality for improved organization and time management. Utilized MQTT (Message Queuing Telemetry Transport) protocol for efficient and reliable data transfer. Implemented protocol buffer serialization to optimize data transmission and reduce overhead. Identified and resolved memory leaks and managed memory efficiently to ensure optimal app performance. Designed and implemented user interfaces programmatically using UI Kit.