Sparsh

Developer III - Software Engineer

Walmart • Full time

Jul 2025 - Present • 10 mos

• Technologies Used: Java 8, Spring Boot, MongoDB, PostgreSQL, Apache Kafka, REST APIs, Postman, JUnit, Mockito • Designed and implemented end-to-end brand onboarding workflows, enabling multiple sellers to onboard and sell the same product under a single brand on the Walmart platform. • Developed and executed core business flows for brand registration, seller association, product mapping, and approval lifecycle. • Built scalable RESTful microservices using Spring Boot to support brand management and seller onboarding use cases. • Implemented event-driven communication using Apache Kafka to ensure reliable and asynchronous processing across services. • Worked extensively on data modeling and persistence using MongoDB and PostgreSQL based on functional requirements. • Integrated and orchestrated multiple internal and third-party services/APIs to support onboarding, validation, and tracking flows. • Developed comprehensive unit test cases using JUnit and Mockito, ensuring high code coverage and adherence to quality standards. • Performed API testing and validation using Postman to verify business scenarios and edge cases. • Actively involved in debugging, root cause analysis, and bug fixing during development, QA, and UAT phases. • Collaborated with cross-functional teams including product owners, QA, and DevOps to deliver features from requirement analysis to production deployment. • Contributed across the entire SDLC — requirement analysis, development, testing, deployment, UAT, and postproduction support. • Followed clean code practices, design principles, and Walmart engineering standards to ensure maintainability and scalability. • Participated in code reviews and knowledge-sharing sessions to improve overall team code quality. • Implemented CRUD operations using Elasticsearch repositories and REST APIs. • Integrated Elasticsearch with Spring Boot using Spring Data Elasticsearch for high-performance search APIs.

Software Engineer

FedEx • Full time

Aug 2020 - Jul 2024 • 3 yrs 11 mos

• Technologies Used: Java 8, SpringBoot, SQL Server, Postman API, WinSCP, Putty, Apache Tomcat • Outline and evolved the main application of WeShip: WeShip App, Driver App, and the Dispatcher Portal. • Implementation of features like end-to-end tracking of the first-mile to last-mile delivery of orders, inventory management, packing, and sorting of products • Integration with multiple carriers like FedEx, USPS, etc., and many other National and Regional carriers. • Amalgamation of multiple third-party APIs like Google Maps, MapQuest, • Debugging and resolving bugs that have been raised at the time of testing the product. • Developing and unit testing of REST APIs based on spring boot microservice architecture. • Contributing to the life cycle of the process, potentially from the analysis stage to the development, deployment, UAT, and production.