Dipayan Saha

BU - Travel and Hospitality | Client – Marriott International, Inc. • Developed synchronous and asynchronous microservices (adapters, consumers, exposure services) using Spring Boot and Web Flux, integrating Opera PMS, Agilysys PMS, and Marriott systems. • Implemented Kafka-based messaging for event-driven architecture and real-time data exchange. • Built scalable, cloud-hosted services with MongoDB for data persistence and efficient performance. • Performed API testing with Postman and Swagger, and monitored Kafka topics and service health using Dynatrace, utilized Confluence for documentation and collaboration across teams. • Followed Agile Scrum methodology, contributing to sprint planning, reviews, and stand-ups for iterative delivery. BU - Travel and Hospitality | Client – Delta Air Lines, Inc. • Developed and maintained scalable Java and Spring Boot APIs for high-traffic web applications (50K+ DAUs). • Led backend integration and API testing using Swagger and Postman. • Migrated applications from on-premise to AWS Cloud (ROSA, OpenShift JBoss, WebSphere, Jenkins), automated deployments via CI/CD pipelines. • Ensured security compliance with Veracode scans and AWS certificate renewals. • Followed Agile and Scrum practices for rapid and iterative development.