Built Spring Boot microservices & REST APIs for flight scheduling and fare search, supporting 50K+ peak-hour bookings with sub-50ms latency.

Improved reliability by 45% by adding validation and fault handling in Apache Kafka event streams.

Secured cloud-native services using Spring Security (OAuth2, JWT, RBAC) and migrated legacy WebSphere apps to Dockerized microservices.

Developed React dashboards and AWS Lambda APIs (API Gateway, DynamoDB, Cognito), reducing operational costs by 20%.

Designed a Spring Boot KYC micro-platform, integrating core banking systems with REST APIs and OAuth2/JWT.

Optimized Oracle + Hibernate queries, cutting latency by 35% and improving transaction throughput.

Integrated Kafka-based fraud alerts and built Angular analytics dashboards for risk teams.

Automated CI/CD using Docker, Jenkins, and SonarQube, achieving 90%+ test coverage and faster releases.

Delivered healthcare modules using Java 8, Spring MVC, JSP, improving clinician productivity by 30%.

Built HIPAA-compliant REST APIs with encryption and access controls, maintaining 99.99% data security uptime.

Automated patient notifications with Spring Scheduler, reducing no-shows by 15%.

Migrated legacy services to Spring Boot and introduced ELK logging for better monitoring.