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I will fix bugs and add features to your java spring boot application
Nour H
About this gig
I will debug, fix, and improve your existing Java Spring Boot backend application.
If you are facing errors, broken REST APIs, database issues, authentication problems, configuration errors, or need a new backend feature added to an existing project, I can help.
I can work on:
- Spring Boot errors and exceptions
- REST API and endpoint issues
- JPA / Hibernate problems
- PostgreSQL and MySQL integration
- Spring Security and JWT authentication
- Validation and exception handling
- Adding new endpoints and backend features
- Business logic bugs
- Third-party API integration
- Spring configuration issues
- Code refactoring and backend improvements
- Microservice communication issues
How I work:
- Review the issue and existing code
- Reproduce and identify the root cause
- Implement and test the solution
- Deliver the updated source code and explain the changes
Please message me before ordering if the issue is complex or its scope is unclear.
Get to know Nour H
Nour H
Backend and Full Stack Developer, Java and Spring Boot
- FromEgypt
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English, Arabic, German
I'm a Backend & Full-Stack Developer specializing in Java, Spring Boot, REST APIs, microservices, and database-driven applications. I can build APIs, authentication systems, database integrations, backend features, fix bugs, and improve existing applications.
I also work with React, Python/FastAPI, C#/.NET, Docker, PostgreSQL, and MySQL. I focus on clean, maintainable code, reliable solutions, and clear communication throughout every project.
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FAQ
Can you work on an existing Spring Boot codebase?
Yes. This Gig is specifically designed for existing Java Spring Boot applications. I can review your project, identify the issue, implement the fix, and add new backend functionality when required.
What kinds of Spring Boot problems can you fix?
I can work on REST API errors, Spring configuration problems, JPA/Hibernate issues, database errors, JWT and Spring Security problems, validation, exception handling, business logic bugs, and related backend issues.
Can you add new features instead of only fixing bugs?
Yes. I can add REST endpoints, database functionality, authentication features, integrations, business logic, and other backend functionality to an existing Spring Boot application.
Can you work with PostgreSQL and MySQL?
Yes. I can troubleshoot and implement database functionality using PostgreSQL or MySQL with Spring Boot, JPA, and Hibernate.
What if I don't know exactly what is causing the error?
That's fine. Provide the error message, logs, expected behavior, steps that trigger the problem, and your source code. I can investigate the cause.
Will my code remain confidential?
Yes. Your source code and project information will be treated as confidential and used only to complete your order. Avoid sharing unnecessary production passwords or sensitive credentials.
What if my problem is larger than the Premium package?
Message me with the requirements first. After reviewing the scope, I can recommend the appropriate package or prepare a custom offer.
