I will fix java spring boot backend bugs with root cause analysis


About this gig
Is your Java Spring Boot application failing to start, returning HTTP 500 errors, or throwing unexpected exceptions? I'll identify the root cause, implement a reliable fix, thoroughly test it, and explain what caused the issue.
I'm a backend software engineer with 3 years of commercial experience building and debugging Java Spring Boot applications. I focus on solving the actual problem not temporary workarounds using clean, maintainable code.
I can help with:
- ️Spring Boot startup failures, Bean creation errors & Dependency Injection issues
- REST API bugs, HTTP 400/401/403/404/500 errors & API integration
- Spring Security, JWT Authentication & CORS configuration
- Hibernate & JPA mapping, transaction & persistence issues
- PostgreSQL, MySQL, JDBC, SQL query & database connection problems
- Maven dependency conflicts, Docker configuration & environment issues
- Kafka integration, Redis caching & Log4j configuration
What you'll receive:
- Root cause analysis
- Clean, maintainable & tested solution
- Explanation of the fix
- Recommendations to prevent similar issues
Please contact me before placing an order so I can review your issue and recommend the best package.
Get to know Thahira Banu
Helping businesses with Code and Content
- FromIndia
- Member sinceJun 2019
Languages
Tamil, English
FAQ
What exactly do you need from me to start debugging?
To resolve your issue quickly, I will need: 1) Access to your source code (via a GitHub/GitLab repository or a zipped file), 2) The exact error message or stack trace you are seeing, and 3) Clear steps on how to reproduce the bug.
What if the bug is actually a massive architectural issue?
Debugging can sometimes reveal deeper structural flaws. If I investigate your code and discover that the "simple bug" actually requires a complete database restructuring or a massive logic rewrite, I will clearly document the issue for you, and we can discuss a custom offer to rebuild it properly.
Do you work with containerized environments and custom databases?
Yes. I am fully comfortable debugging applications running in Docker containers, and I regularly work with relational and caching databases including Postgres and SQL Server.
Can we jump on a quick Zoom call so I can show you the bug?
To ensure nothing is lost in translation and to protect both of us, I keep all project communication directly in the Fiverr text chat. You can easily send me screenshots, screen recordings, and stack traces right here in the chat!
Does this gig include building completely new REST APIs from scratch?
This specific gig is dedicated entirely to debugging, patching, and optimizing existing code. If you need a brand-new backend feature or microservice built from scratch, please send me a message and I will create a custom proposal for your project!

