About

Vishal Jain is a Principal Software Engineer at Walmart Global Tech with over 11 years of experience in product development as an individual contributor. He has a strong background in designing and developing scalable cloud distributed Java/J2EE based applications. Vishal's core competencies include Core Java, J2EE, Spring Boot, Hibernate, Kafka, Microservices, Data structures, and Algorithms. He is proficient in databases such as Cassandra, Oracle, SQL, and NoSQL, and has a good handle on cost analysis of SQL queries and their optimization. Currently, Vishal is a Staff Software Engineer at Walmart, working on FASTr (Fast Accurate Sourcing Transformation), the sourcing engine for the Sam’s Club ecommerce website. This P1 application has 24/7 availability and receives millions of requests every day, with an average SLA of 100ms. Vishal's responsibilities include using Java, Spring Boot, Hibernate, Kafka, Cassandra, and Elastic Search to provide the most accurate and aggressive delivery dates and shipping charges to buyers while also optimizing costs. In his previous roles, Vishal worked as a Senior Engineer at Walmart and as a Senior Software Engineer at Symantec, where he played a key role in developing SSL certificate life cycle management applications. He has expertise in Microservices, Core Java, Spring Boot, Hibernate, Kafka, and query optimization for improving the overall scalability and performance of applications. Vishal holds a Post Graduation Diploma in Advance Computing (PGDAC) from CDAC and completed his 12th and 10th grade from D.A.V Public School (C.B.S.E). His tech stack includes Software Engineering, SQL, Java, Kafka, Spring Boot, Spring, Cassandra, Microservices, Elastic Search, and Search. With 13.03 years of relevant experience, Vishal is a seasoned software engineer with a strong track record of delivering high-quality products.