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Fiverr Pro
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$
USD
I will fix bugs in java, spring boot and maven
Carlos Tavares
About this gig
Are you facing any errors, unexpected behaviors or crashes in your Java & Spring Boot application?
I have professional experience in backend development with Java, Spring Boot and REST APIs, and I can fix the bugs that are affecting your API, from simple bugs to complex issues affecting your application's functionality.
Services that I offer:
- Bug investigation and root cause analysis: Exceptions, Spring Security & JWT authentication issues, Hibernate / JPA query and mapping errors, REST API issues, PostgreSQL query problems, dependency injection errors, and similar errors;
- Clean and working fixes for Java / Spring Boot applications
- Clear documentation explaining the issue and solution
Why work with me?
- I focus on understanding the underlying architecture before changing the affected code
- I aim to deliver clean, maintainable, and reliable solutions
- I communicate clearly throughout the project
- I treat every project with care and respect the agreed deadline
Please message me before ordering if you'd like to discuss your bug first. I'm happy to take a quick look at the issue and confirm the scope before you place an order.
Get to know Carlos Tavares
Carlos Tavares
Software Engineer
- FromPortugal
- Member sinceSep 2026
- Avg. response time1 hour
Languages
Portuguese, English
Hi! I'm Carlos - a Software Engineer with 1.5 years of professional experience and a MSc in Informatic and Computers Engineering. I have professional experience in backend development and software testing, and have also developed projects in Full-Stack Development, Data Engineering, and AI/ML. I love building reliable software and solving technical problems with a practical and detail-oriented approach. I’m new to Fiverr, but I’m committed to providing a professional experience and building strong relationships with my clients. Let's discuss your project and how I can help you!
Other Software Development Services I Offer
FAQ
Do you fix bugs in plain Java projects (non-Spring)?
Yes. While I specialize in Spring Boot, I can debug plain Java applications, including issues with threading, collections, algorithms, and core Java libraries.
What information do you need to fix my bug?
A brief and clear description of the issue, the code snippet that is throwing the error, the error logs, the stack trace, your build tool and your Spring Boot and Java version. A GitHub, Bitbucket or similar repository link would be helpful (if possible or available).
What is included as one small bug?
One small bug means a single, clearly defined issue that can be reproduced and fixed within the agreed scope. Multiple errors, major architecture changes, or new feature development may require a custom offer.
What if the same bug reappers after delivery?
I provide free support for any issue directly related to the delivered fix. If the same bug comes back due to my fix, I will resolve it at no additional cost.
Can you work on existing codebase?
Yes, I can work on existing projects and Git repositories.
Do you work on new features or only bug fixing?
This gig is focused on bug fixing and necessary debugging only. New feature development, major refactoring, or significant architectural changes are not included and may require a custom offer.
