Backend development of Jio Visualization Platform, developed microservices using Java and Spring Boot.Actively contributed to the development of a robust IoT device alert portal in Building Management System project. Integrated Redis Pub/Sub model for Dashboard and Onboarding services. Configured keyspace notifications and managed status information using Redis and MongoDB.Engineered a user microservice and optimized Cassandra queries in Data Analytics Pipeline, enhancing data handling efficiency for diverse datasets and significantly improving system performance and scalability.Developed a microservice utilizing Kafka and Apache Flink for advanced data processing. Implemented a sophisticated filtering mechanism to route incoming data to the appropriate pipelines based on service filters, and performed additional processing and transformations using Apache Flink.Implemented Role-Based Access Control (RBAC) and Attribute-Based Access Control (ABAC) within the Jviz project. Developed comprehensive user management and role management features to enhance security and access control.Developed data management operations and mapping for datapoints, things, and devices. Implemented advanced data visualization features, including widgets and dashboards.