I will design scalable rest, grpc and graphql, kafka systems with spring boot

R
rezwan943
R
rezwan943
Rezwan

About this gig

Are you looking for a reliable backend engineer to build scalable, secure, and high-performance systems also front-end included?

I am a Senior Java Backend Engineer with 4+ years of experience building production-grade applications. I design systems that scale efficiently and handle real-world traffic.

What I Can Do For You:

  • Develop REST APIs with Spring Boot
  • Build GraphQL APIs
  • Implement high-performance gRPC services
  • Design microservices architecture
  • Integrate PostgreSQL, MongoDB, Redis
  • Implement secure authentication (JWT, Spring Security)
  • Optimize performance and fix bottlenecks
  • Integrate Kafka for high throughput & decoupling system components.
  • Debug and improve existing systems
  • Build Responsive any front-end framework website pages.

Tech Stack: Java, Spring Boot, PostgreSQL, Kafka, Redis, Docker,Nodejs, Front-end any framework

Why Choose Me:

  • Production-level experience
  • Clean and scalable code
  • Strong system design skills
  • Fast communication

Contact me before placing an order to discuss your requirements.

Get to know Rezwan

Rezwan

Senior Software Engineer

5.0(2)
  • FromBangladesh
  • Member sinceFeb 2022
  • Avg. response time7 hours
  • Last delivery1 year
  • Languages

    English
Software Engineer with 4+ years of experience in Java 21 and Spring Boot 4, specializing in scalable microservices and high-performance backend systems. I build secure APIs with Spring Security & JWT, event-driven systems using Kafka, and optimize performance using Redis caching (up to 40% improvement) and PostgreSQL tuning. Experienced in Docker, CI/CD, and production-grade deployments. Delivered payment systems, flight operations, and enterprise solutions. Let’s build scalable backend systems together.