Vijaysurya Mandala

Backend Developer

Cognizant•  December 2019 - July 2022

During my time at Cognizant, I developed a streamlined card activation process using Spring Boot and Java 8+, reducing friction by 50% and improving the user experience. I integrated Kafka for card activation notifications, optimized email campaigns, and containerized services with Docker, deploying the solution on AWS for scalability. Additionally, I patched a critical Log4j vulnerability to mitigate security risks and led a seamless SSIS package migration, ensuring system stability and performance.