I will build a rest API with java spring boot

M
mkalogerakis
M
mkalogerakis
Marios K

About this gig

Are you looking for a clean, scalable, and production-ready REST API?


I will design and develop a professional backend REST API using Java Spring Boot built with best practices, proper error handling, and clean architecture so your app can grow without breaking.

WHAT I BUILD:

- RESTful APIs with full CRUD operations

- JWT authentication & role-based authorization

- MySQL / PostgreSQL database integration with JPA/Hibernate

- Input validation, global exception handling, proper HTTP status codes

- Clean layered architecture (Controller Service Repository)

- API documentation with Swagger/OpenAPI WHO THIS IS FOR:

- Startups building their first backend

- Frontend developers who need a solid API to connect to

- Businesses that need to expose data via REST


WHY WORK WITH ME:

I have built real-world Spring Boot applications including a multi-tenant SaaS platform and a university bookstore system. I write code that is readable, maintainable, and ready for production. Check my packages for different project sizes. Message me before ordering so I can confirm your requirements and give you an accurate timeline. Let's build!!

Get to know Marios K

Marios K

Software Engineer

  • FromGreece
  • Member sinceApr 2026
  • Languages

    English, Greek
I am a Software Engineer and Computer Science MSc student with a strong foundation in Full Stack Development and Data Engineering. I have experience in building scalable web applications using Java Spring Boot and Angular, with a focus on Data Analytics, SQL optimization, and AI integration. I am passionate about applying machine learning and LLM technologies to solve real-world problems.