Open to opportunities

sanjay User

@sanjayuser13

Message

I build production Java microservices and React applications for cloud deployment.

India

Message

What I'm looking for

I'm looking to build secure, scalable Java and React applications, own work across the full SDLC, and deepen my cloud-native, microservices, Kubernetes, and production engineering experience.

I've built production applications including FieldProFSM at River Engineering Technology Services, delivering 8+ Java microservices, 50+ RESTful and gRPC APIs, JWT/OAuth2 security, RBAC, payment webhook reconciliation, and ReactJS modules.

I also built Xorva, a production full-stack Java SaaS platform with Spring Boot 3, ReactJS, Google SSO, Azure AD, Stripe billing, gRPC, Resilience4j, and CI/CD. Across three live applications, I've owned the full SDLC from requirements through Docker, Kubernetes, GCP/AWS deployment, testing, and 100 RPS throughput validation.

Experience

Work history, roles, and key accomplishments

Java Full Stack Developer

River Engineering Technology Services

Jun 2025 - Jun 2026 (1 year)

Architected and developed 8+ microservices using Core Java, Spring Boot, and Spring Cloud Gateway; built 50+ RESTful and gRPC APIs with JWT/OAuth2 security and RBAC. Developed 6+ ReactJS front-end modules, containerized services with Docker, and orchestrated on Kubernetes (GKE) with CI/CD via GitLab.

Java Spring Boot Spring MVC Spring Security JWT RBAC REST APIs gRPC Protobuf Microservices Docker Kubernetes GCP AWS CI CD Junit Mockito MySQL PostgreSQL Redis Kafka RabbitMQ

Full-Stack Java SaaS Developer

Xorva

Built a production full-stack SaaS with Spring Boot 3 and ReactJS across 50+ REST endpoints; implemented OAuth2 (Google SSO / Azure AD), Stripe billing, Resilience4j, and gRPC. Set up GitHub Actions CI/CD and Flyway migrations, deployed on a GCP/AWS-compatible stack.

Java Spring Boot Stripe Resilience4j gRPC GitHub Actions Flyway GCP AWS

Java Full-Stack Developer

LinkLytics

Built a full-stack application with Spring Boot and ReactJS using Core Java Collections and multithreading; used MySQL with Redis caching. Tested with JUnit/Mockito, built with Maven, Git, and Docker, and deployed on AWS EC2 at 100 RPS.