I will fix and develop java spring boot or dotnet rest apis

Having trouble with a Java Spring Boot or .NET REST API? I can help you identify the root cause and implement a clean, reliable fix.

With 4 years of professional software development experience, I work with production applications in Java, Spring Boot, .NET, ASP.NET Core, REST APIs, SQL, and third-party integrations.

I can help with:

API errors and unexpected responses

Java/Spring Boot or .NET/ASP.NET Core bugs

Business logic and validation issues

Database and SQL-related problems

Request/response mapping issues

Authentication and authorization issues

Third-party API integrations

Existing backend code and application maintenance

Performance-related backend issues

My approach is to understand the existing code flow, reproduce or investigate the issue, identify the root cause, implement the fix, and test the solution.

I work carefully with existing codebases and aim to provide maintainable solutions rather than temporary workarounds.

Each package covers one bug/issue. For multiple bugs, major new features, complete API development, or complex projects, please contact me first so I can review the requirements and provide the appropriate scope and pricing.