I will fix java spring boot bugs and rest API errors

Is a Java exception or failing REST endpoint blocking your application? I will investigate and fix one reproducible, agreed-scope bug in your Java or Spring Boot backend.

I have 9 years of Java and Spring Boot experience, including production systems at Uptycs and MoveInSync. My background includes REST APIs, Kafka, Redis, SQL databases, microservices and production troubleshooting.

Included: reproduce the issue, identify the root cause, make a focused code fix, add an appropriate regression test, and explain the change and local verification steps. One revision covers the same agreed issue.

The basic package is for one small bug that can be resolved in an existing, runnable codebase. New features, broad refactoring, infrastructure incidents, mobile apps and production deployment need a separate scoped offer.

Please message me with the error, expected behaviour and steps to reproduce before ordering so we can confirm fit. Provide a sanitized code sample or repository access through Fiverr. Do not send passwords, API keys or customer data. All communication and payment stay on Fiverr.