• Built and deployed a Java based Spring Boot email scheduling service with retry logic, cutting delivery errors by 40% and saving staff 200+ hours of manual follow-ups per semester.

• Improved database performance by optimizing Oracle indexing strategy, which reduced API response times from 1.2s to under 400ms and supported seamless scaling for increased number of users.

• Developed Event Driven architecture using Java, Spring Boot Microservices and Apache Kafka, minimizing data processing latency by 35% and enabling real-time provider transactions of 100 million daily volume.

• Optimized Redis caching by tuning eviction policies and TTLs, boosting hit rate to 90%, cutting latency from 160ms to 95ms, and improving peak traffic reliability.

• Engineered resilient Java microservices utilizing Eureka for service discovery, Hystrix for circuit breaking, and Apigee as an API Gateway to achieve 99.9% uptime and scalable partner-facing APIs.

• Applied MongoDB replication and sharding, boosting throughput by 35% and ensuring seamless handling of 10K+ concurrent user requests during peak loads.

• Refined Terraform modules to right-size cloud resources (EC2, RDS, EKS) and eliminate unused infrastructure, resulting in a 20% reduction in monthly AWS spend without impacting performance.

• Built and deployed RESTful APIs integrating external payment gateway, improving transaction reliability by 25% through robust error handling, idempotency, and optimized service-to-service communication.

• Worked in cross-functional Agile teams (QA, Product Owners), improving sprint velocity by 20% and reducing production defects by 30% through continuous integration and peer reviews.