Backend development of Finacle Payment Solution. Performed unit tests on the business logic(micro- services). Usage of RabbitMQ quorum queues into the system, implementation of middleware, APIs and nodes. Conducted performance testing on the system to scrutinize TPS, response time, and any bottlenecks or bugs and further refactored the code to optimize the application's performance. Later worked on defect resolution (CLM/JIRA), successfully addressing and resolving client-reported issues, demonstrating a commitment to delivering timely and effective solutions while ensuring client satisfaction.Tools: Node.js, loopback, express.js, Node-RED, PostgreSQL, Redis, RabbitMQ