Open to opportunities

Nitish Kumar

@nitishkumar18

Message

I build scalable Java microservices and secure backend platforms.

India

Message

What I'm looking for

I'm looking to build scalable, secure backend systems and microservices where I can own modules end to end, work with Java and Spring Boot, solve integration challenges, and contribute to reliable production delivery.

I've built backend systems for Health Insurance TPA of India, Malaysia Government e-invoicing, Allen Next, Allen Digital, Nykaa, and Fundoo Notes using Java, Spring Boot, Hibernate/JPA, and REST APIs.

At GingerWebs, I implemented microservices architecture from scratch for Allen Next and extended it for Allen Digital, building Test, Feedback, Dashboard, Quiz, and Class modules with Feign Client communication and third-party API integrations. I also used AWS S3, Redis, Aurora, Docker, Kubernetes, Grafana, GitLab, and Java 8 features to support performant services.

I've led modules end to end, from requirement gathering and service design through delivery, while building secure authentication with Spring Security, Keycloak, and JWT. My work also includes Spring Batch bulk processing, Apache POI document generation, MySQL data access, POS deployments, production support, and bug fixes.

Experience

Work history, roles, and key accomplishments

Java Backend Developer

ConsintAI Pvt Ltd

Jan 2025 - Jun 2026 (1 year 5 months)

Gathered requirements and led a module end-to-end within a healthcare platform. Developed REST APIs using Java 8 and Spring Boot, built a new microservice from scratch, and implemented Spring Security and Keycloak-based authentication.