Dec 2020 – Jun 2025 · 4 yrs 6 mos

• Led the design and development of scalable, resilient backend systems powering Walmart’s supply chain operations.
• Architected distributed platforms to manage large-scale customer order lifecycles, enabling efficient and reliable processing.
• Spearheaded the migration of 500M+ live customer orders to Azure Cosmos DB, ensuring data accuracy and operational continuity at scale.
• Built robust event-driven workflows using Apache Kafka, Apache Flink, Cassandra, and NiFi for real-time order processing and state transitions.
• Developed intelligent remediation mechanisms that significantly reduced order cancellations and improved customer retention.
• Focused on platform reliability and performance, optimizing infrastructure for high throughput and minimal latency under peak loads.Developed robust workflows to improve order remediation, reduce cancellations, and enhance customer experience, while driving platform reliability and operational efficiency.

Oct 2016 – Dec 2020 · 4 yrs 2 mos

• Spearheaded the design and development of scalable backend systems to optimize Walmart's Supply Chain operations.
• Leveraged technologies such as Apache Kafka, Zookeeper, Cassandra, Flink, NiFi, and MongoDB to build robust, distributed platforms.
• Delivered high-performing, resilient solutions that improved system scalability, data processing capabilities, and end-to-end supply chain efficiency.
• Played a key role in ensuring seamless system integration and delivery through modern architectural practices and continuous performance tuning.

Jun 2014 – Oct 2016 · 2 yrs 4 mos · Bengaluru, Karnataka, India · On-site

• Played a key role in designing and building scalable, secure backend systems within the Payments domain.
• Led the re-architecture of monolithic applications to microservices, enabling independent scaling and fault isolation.
• Developed and maintained critical systems, including a centralized OAuth 2.0 authentication platform and an at-least-once delivery notification system for reliable inter-service messaging.
• Conducted system capacity planning for high-traffic events like Big Billion Days (700+ TPS), ensuring performance and availability under peak loads.
• Represented payment systems in PCI-DSS compliance audits, demonstrating deep expertise in security and regulatory standards in fintech environments.

Feb 2014 – May 2014 · 3 mos · Greater Hyderabad Area

• OpenEdge BPM: This product offers a combined business process
• management solution within the application development platform
• to simplify the development and deployment of dynamic business
• process applications.
• Technology:- Java, EJB, JBoss, Progress Corticon
• Role:
• To develop runtime component i.e. BPM engine of the OE BPM product.
• To own and develop features for OE BPM.

Dec 2011 – Jan 2014 · 2 yrs 1 mo · Greater Hyderabad Area

• OpenEdge BPM: This product offers a combined business process
• management solution within the application development platform
• to simplify the development and deployment of dynamic business
• process applications.
• Technology:- Java, EJB, JBoss, Progress Corticon
• Role:
• To develop runtime component i.e. BPM engine of the OE BPM product.

Jan 2010 – Dec 2011 · 1 yr 11 mos · Greater Coimbatore Area

• Co-Developed the Educator (http://www.educator.eu/).
• Environment:- MS-Windows XP, Java, OSGI Spring DM Server/Virgo Web Server, MS SQL Server
• Technology:- Java, Wicket, Spring, Hibernate, Maven, JMock, TestNg, Liquibase, CI
• Role: Since this project is being developed following Agile Methodology (SCRUM), my role remains cross-functional in the team.
• Writing business logic (Business Layer).
• Developing domain models (Database Layer).
• Generating required tables in the database.
• Developing UI components (Front End using exclusively Core Java/Wicket framework).
• Writing Unit Test for the components developed in each layer.