I will build your java spring boot API or backend

I develop and fix backend systems using Java and Spring Boot.

This includes building REST APIs, connecting your application to a database, and integrating third-party services such as payment gateways, scheduling tools, or external data feeds.

Background: 3 years full-time as a software engineer at a multinational company working on data-heavy backend systems, plus 3 years freelancing across 80+ completed projects.

I can help with:

• Building REST APIs in Spring Boot
• Fixing or refactoring existing Java code for better performance
• Connecting your app to a database or third-party service
• Fixing bugs in an existing backend system
• Writing unit tests using JUnit and Mockito

Before starting any project, I ask for the specific details of what you need: the endpoints required, your current codebase if one exists, and your database structure. This avoids wasted time on both sides.

Message me with what you need built or fixed. I will tell you clearly whether I can help, and give you a realistic timeline before you place an order.