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I will build a secure and scalable rest API using java spring boot


About this gig
Professional Java Spring Boot Development
Are you looking for a robust, scalable, and secure backend for your next web application?
I am a Software Engineer specialized in Java and Spring Boot. I don't just write code that works; I build well-structured systems with a "Quality & Security First" mindset. Whether you need a brand new RESTful API from scratch, integration with a database, or someone to fix bugs in your existing code, I am here to help.
What I offer:
- Custom REST APIs: Built with Java, Spring Boot, and Spring Data JPA.
- Database Integration: MySQL, H2, or PostgreSQL.
- Clean Architecture: Layered design (Controller, Service, Repository), DTO patterns, and SOLID principles.
- Reliability: Global Exception Handling (@ControllerAdvice) for clean HTTP responses.
- Quality Assurance: Unit and integration testing using JUnit 5 and Mockito to ensure your app is bug-free.
- Documentation: Interactive API documentation using Swagger/OpenAPI.
Why choose me? Having a background in Software Quality and a Cybersecurity certification, I write code that is not only functional but also maintainable and protected against common vulnerabilities.
Get to know Juan Raimondo
Java BackEnd Developer
- FromArgentina
- Member sinceJan 2024
- Last delivery2 years
Languages
English, Spanish
My Portfolio
FAQ
Do you write tests for the code?
Yes! I use JUnit 5 and Mockito to ensure the backend logic is tested and reliable.
Can you also help with the Frontend?
Yes, I have experience working with JavaScript and React, so I can seamlessly integrate the backend API with your frontend application.

