Kalyan kumar

Java Developer

Tata Consultancy Services•  August 2021 - Present•  Hyderabad

Working as a developer in the Invoice Team for The Terminal Operating System Application. Implemented advanced back-end systems using Java and Spring Boot, coupled with HQL, achieving a reduction in database query execution time by 25%, directly contributing to improved application efficiency for end-users. Automated the builds and deployment of JAVA projects using MAVEN and Jenkins. Maintained build-related scripts developed in MAVEN and modified build configuration files including POM.xml. Developed REST API to facilitate information exchange between modules. Implemented cache loading in the invoicing process, reducing invoicing time from 20 minutes to 4 minutes. Produced Kafka events to enable other modules to consume data from the Invoice module. Reduced the Time of Invoicing By almost 60% by implementing the Actors system. Developed intuitive front-end interfaces with EXTJS, enhancing user experiences in alignment with project specifications. Engineered and deployed customizable screen functionality, allowing users to tailor their experience; resulting in a 35% decrease in time spent on any new requirement. Implemented unit testing using JUnit to achieve complete code coverage. Introduced Logging to reduce error detection time by 50% in the application.