▪Implemented real-time communication between services using Kafka for event-driven workflows, ensuring data exchange is smooth and consistent.▪Developed and exposed REST APIs for seamless interaction between system components, contributing to system integration and interoperability.▪Developed an authorization guard to manage user authentication and permissions across services, boosting overall system security.▪Implemented a centralized notification service to handle both single and bulk notifications, improving user engagement through in-app and email communication.▪Designed and implemented a system for efficiently managing employee schedules, including the development of a shift swap feature and handling resource allocation conflicts.▪ Developed API for Biometric clock-in and clock-out functionality to work seamlessly with existing functionality▪Maintained existing APIs and integrated new features to keep the system responsive to evolving business needs.