I will build or extend your java rest API backend

K
kurokasaiken666
K
kurokasaiken666
Fausto B

About this gig

I will build or extend your Java REST API backend

Need a solid Java backend for your app or SaaS? I build clean, production-ready REST APIs with Java and Quarkus (Spring Boot also available), backed by PostgreSQL and containerized with Docker when needed.

With experience in enterprise and medical software, I focus on reliable, maintainable code: clear endpoints, proper database access, and working tests.

What you get:

  • REST API endpoints designed and implemented
  • CRUD operations with PostgreSQL
  • Clean service/repository structure
  • JWT authentication & user roles (Premium)
  • Docker + docker-compose setup (Premium)
  • Tests and short documentation

Packages:

  • Basic 50: 2 simple endpoints, 2 days
  • Standard 150: full CRUD module for 1 entity, 3 days
  • Premium 350: complete backend module with auth, Docker and tests, 57 days

Before ordering, send me a short description of your project, existing repo or specs, and your target Java/Quarkus version. I will confirm scope and delivery time.

Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know Fausto B

Fausto B

Software Developer

  • FromItaly
  • Member sinceAug 2026
  • Languages

    English
I am a Software Engineer with experience in Java, Quarkus, Docker, and PostgreSQL, specializing in backend systems for medical and enterprise software. I have designed and implemented REST APIs and system integrations in complex environments, focusing on reliability, maintainability, and performance. I am currently interested in backend engineering and distributed systems.