Shubh jain User

I've built enterprise REST APIs at Barclays, including a customer-profile aggregation endpoint that unified data from downstream services and reduced average response time from 1000ms to 300–500ms through parallel calls and caching.

I took the feature from requirements and HLD discussions through component design, implementation, and testing in an Agile/Scrum workflow. I also built a Spring Boot and React Jira utility that centralized issue data and streamlined defect and reporting workflows across engineering teams.

My projects include a distributed banking platform with independently deployable Accounts, Cards, and Loans services, using Spring Cloud, Kafka, RabbitMQ, Docker, Resilience4j, and Keycloak-based OAuth 2.0. I also created an event-driven payment system for real-time transfers and a full-stack employee management application with role-based access control.

I'm a Java backend developer with hands-on Spring Boot experience and strong problem-solving fundamentals from solving 450+ DSA problems. I’m comfortable working across microservices, distributed systems, REST APIs, and React frontends.