At Tata Consultancy Services, I build Java 8 and Spring Boot backend services for banking and airline distribution systems. I deliver RESTful APIs, microservices, and cloud-enabled applications for clients including British Airways and IB RRB.
For British Airways, I connected booking systems with more than 10 external partner APIs, improving booking conversion by 12%. I also built modules handling 5,000+ concurrent API transactions and improved SQL query execution time by 20% through indexing and query restructuring.
On the IB RRB banking system, I delivered account-management and transaction-processing services with sub-200ms API response times. I strengthened delivery through 90%+ JUnit coverage, SonarQube-driven quality controls, AWS monitoring and access management, and close collaboration with QA, DevOps, and business analysts.
