Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix java spring boot bugs and rest API errors
Tanu P
About this gig
Stuck with a broken backend? Stop wasting time staring at cryptic error logs.
A single misconfigured SecurityFilterChain or an unhandled 500 internal server error can completely freeze your application and block your front-end access.
You need an expert to isolate the bug and patch the root cause immediately.
I specialize in modern Java Spring Boot practices, rapid code diagnostics, and backend troubleshooting.
Expert Services Offered: -
-Spring Security configuration & filter chain fixes
- Stateless JWT token generation, expiration, and validation issues
- Fixing 404 Not Found paths and incorrect controller endpoint mappings
- Troubleshooting Spring Data JPA PostgreSQL repository errors and Hibernate leaks
- Resolving Maven/Gradle dependency conflicts and Bean creation exceptions
IMMEDIATE ACTION: Do not place an order blindly!
Click "Contact Seller" right now, send your error logs or stack trace, and let's get your system running flawlessly today!
Get to know Tanu P
Tanu P
Java Backend Developer Spring Boot REST API Specialist
- FromIndia
- Member sinceApr 2021
- Avg. response time2 hours
Languages
English, Hindi
Stuck with broken APIs or weak backend security?
I build ironclad backend systems and rescue failing Spring Boot apps. As a Java Engineer with 2.5+ years of experience, I specialize in secure RESTful APIs and rapid bug fixes.
My Core Expertise Includes:
• Frameworks: Java Spring Boot & Spring Security 6.x
• Security: Stateless JWT, OAuth2, and RBAC
• Databases: PostgreSQL, MySQL, and Hibernate leak patches
• Bug Fixing: Resolving severe 404/500 errors & CORS blocks
Click "Contact Me" right now to share your project scope or error logs, and let's fix it!
My Portfolio
Other Software Development Services I Offer
FAQ
Question: What information do you need to start fixing my Spring Boot bug?
Answer: Please provide your error logs, stack trace, the specific code file causing the issue, and your current pom.xml or build.gradle configuration. Sharing a repository link or a snippet of your controller/filter code is ideal.
Question: Do you offer support for Spring Security 6.x and modern JWT configurations?
Answer: Yes, absolutely. I specialize in modern Spring Security implementations, stateless JWT architectures, token generation/validation filters, and fixing strict CORS blocking issues.
Question: Can you fix 500 Internal Server Errors related to my database connection?
Answer: Yes. I isolate and resolve Spring Data JPA repository errors, Hibernate lazy initialization issues, connection pool leaks, and entity mapping conflicts with PostgreSQL, MySQL, and MongoDB.
Question: What happens if the bug cannot be fixed within 24 hours?
Answer: Over 90% of basic routing and configuration errors are resolved within hours. If the bug stems from a deep architectural problem, I will diagnose it within the first few hours and give you a clear roadmap to repair it immediately.
