I will debug and fix your spring boot rest API jwt security and jpa errors


About this gig
Is your Spring Boot application throwing errors you can't trace? ApplicationContext failures, JWT authentication issues, JPA mapping errors, REST API 4xx/5xx responses I diagnose and fix them fast, with a clear explanation so you understand what went wrong.
What I fix:
- Spring Boot startup errors (ApplicationContext, bean creation, dependency injection)
- REST API errors 400, 401, 403, 404, 500 with root cause analysis
- Spring Security and JWT filter chain issues
- JPA, Hibernate, and PostgreSQL/MySQL errors
- Maven dependency conflicts and application.yml configuration issues
- Spring AI integration and API configuration problems
- Microservice communication and REST template errors
Why hire me:
I run SpringForge AI a technical blog read by 1,000+ Java developers where I write in-depth articles on exactly these problems. I have diagnosed N+1 query issues, Redis caching bugs, JWT filter misconfigurations, and Spring Security chain problems in real production scenarios. I don't just fix your error I explain why it happened so it doesn't happen again.
What you receive:
- Root cause investigation and written explanation
- Working code or configuration fix
- Testing guidance to verify the fix
Get to know Sandeep
- FromIndia
- Member sinceMay 2023
- Avg. response time1 hour
Languages
English
My Portfolio
FAQ
Can you fix Spring Boot application startup errors?
Yes. I can investigate ApplicationContext, bean creation, dependency injection, configuration, Maven dependency, and other Spring Boot startup errors.
Can you fix REST API errors?
Yes. I can troubleshoot common 400, 401, 403, 404 and 500 errors and identify the backend code or configuration causing the problem.
Can you fix Spring Security and JWT problems?
yes. I can debug Spring Security configuration, authentication, authorization, JWT validation, filters, and related backend issues within the agreed package scope.
Can you fix MySQL, JPA and Hibernate errors?
Yes. I can investigate database connectivity, entity mappings, repository problems, SQL queries, Hibernate exceptions, and data-related errors.
Can you debug Spring AI applications?
Yes. I can investigate Spring AI configuration, dependencies, API integration, request handling, and backend integration problems.
Can you build a complete Spring Boot application?
This Gig is focused on debugging and fixing existing applications. For a new application, major feature development, or a large project, please contact me first so I can review the requirements and provide the appropriate scope and pricing.

