Raj Kumar
Java Developer | Spring Boot | Microservices | Spring Cloud | Hibernate JPA | Spring Security | Kafka | AWS | Docker | PostgreSQL
- Role
- Senior Associate Consultant at Cubastion Consulting
- Location
- Gurugram, HR, IN
- LinkedIn followers
- 500 followers
About Raj Kumar
Java Backend Developer with 4 years of experience in designing and building scalable, secure, and high-performance applications using Java 8/17, Spring Boot, Microservices, Hibernate JPA, and Spring Security.Hands-on experience with messaging systems like Kafka, API development, database design, authentication/authorization with JWT/OAuth, and integration with third-party systems. I have worked across the full development lifecycle from requirement analysis to development, deployment, and production support.Strong experience with DevOps and cloud technologies including AWS, Docker, Kubernetes, Jenkins CI/CD, Git, MySQL, and PostgreSQL.I enjoy solving complex backend problems, optimizing API performance, improving database queries, and building reliable microservices. I work in Agile Scrum teams and write clean, testable code with JUnit and Mockito.Open to learning, collaborating, and contributing to backend systems that require reliability, performance, and security.
Experience
Senior Associate Consultant
Nov 2025 — Present · Gurugram, IN
Education
Rajiv Gandhi Prodyogiki Vishwavidyalaya
Bachelor of Technology - BTech, Computer Science
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