Hemanth S Patel

• Designed and developed scalable backend microservices for Warehouse Management Systems (WMS), inventory reconciliation, order dispatching and last-mile logistics using Java, Spring Boot and Kafka.
• Participated in production on-call rotations, performed root cause analysis and deployed high-priority backend fixes, while automating Slack/email reporting pipelines to resolve inventory mismatches across three systems, reducing SKU discrepancies from 2000 to under 20.
• Implemented a fault-tolerant Expiry Management System using multithreaded CRON, Redis distributed locking, Kafka Outbox pattern, and Dead Letter Topics (DLT) to build reliable event-driven communication between WMS and Last Mile services, reducing expired product deliveries by 99% across distributed warehouses.
• Owned the complete HLD and LLD design for a new Cycle Counting solution at spokes and marts, driving implementation from requirements through production rollout, improving inventory accuracy from 79% to 98.75% and reducing discrepancy requests by 90% through real-time shrinkage dashboards and enhanced net-off logic.
• Designed and implemented comprehensive unit tests for Spring Boot microservices with JUnit, Mockito, Cursor,and Claude, accelerating test generation, improving edge-case coverage, maintaining 95%+ SonarQube code coverage, and enhancing production reliability

Skills: Java, springboot, mysql, kafka, redis, microservices, datadog, multithreading, event driven architecture, claude, cursor, junit

• Built backend integrations for migrating rider onboarding from Shipsy to an inhouse Last Mile platform using Ongrid APIs, reducing rider verification time from 24 hours to 1 hour (95.83%).
• Developed warehouse picking optimisation using shortest-path algorithms, reducing pick-to-dispatch time from 2 hours to 13–15 minutes, and automated SKU relocation jobs for peak hour efficiency

Skills: Java, springboot, mysql, kafka, redis, microservices, datadog, multithreading, event driven architecture, claude, cursor, junit