Walmart — Senior Software Engineer
- Spearheaded and managed cross-functional teams of 5–6 developers across Incentive, Driver Suggestion, and Supply-Demand systems to drive feature delivery and operational excellence.
- Led infrastructure cost optimization initiatives within the LMD pillar, coordinating a team of 6 developers to reduce cloud spend and improve system efficiency.
- Directed development of the Popular Busy Hours feature using ML, Kafka, and Elasticsearch, enhancing driver engagement with intelligent time-slot recommendations.
- Designed and implemented a smart Block Offer System that achieved an 83% reduction in driver drop rates, improving driver retention and platform reliability.
- Led upgrades of core services from Spring Boot 2.2.x to 2.7.x and Java 8 to Java 17; personally upgraded 4 services and mentored team members to scale upgrades across 10–12 services.
- Resolved critical batching deadlocks and eliminated manual reconciliation errors, significantly improving system stability and operational accuracy.
- Executed a zero-downtime migration from MsSQL to Azure DB, ensuring seamless data continuity and improved scalability.
- Proactively mitigated major security vulnerabilities including Log4J (CVE-2021-45105).
- Tech Stack: Java, Spring Boot, Kafka, MySQL, Azure DB, Elasticsearch, Microservices, GitHub Copilot, Qodo, AI tools