shivam kumar

I’m a Senior Java Developer with 7+ years of experience building scalable backend applications with Java 21, Spring Boot, and Microservices architecture. I focus on designing efficient systems that improve scalability, performance, and maintainability while delivering reliable outcomes.

At Tata Consultancy Services, I’ve developed and maintained 15+ Spring Boot applications using microservices, and I’ve built RESTful APIs with Spring MVC and Spring Data JPA. I’ve integrated with databases such as MySQL and PL/SQL, while also strengthening security using Spring Security and documenting APIs with Swagger.

I specialize in event-driven systems and asynchronous communication—implementing Kafka for microservices and reliable data streaming. I also deploy and manage cloud-based solutions on AWS (including EC2 and S3) to support scalable and highly available environments.

I’m equally serious about quality and delivery: I perform unit and integration testing with JUnit and Mockito, and I use the Spring Test framework for end-to-end workflow validation. I collaborate across frontend, DevOps, and stakeholders, contributing to Agile ceremonies, code reviews, and CI/CD improvements with Jenkins and GitLab CI.