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Fiverr Pro
Nederlands
$
USD
I will fix backend api bugs and errors in python nodejs dotnet
Lalit Rajput
Over deze dienst
Backend API Bug Fixing in Python, Node.js and Dot Net
I will fix backend API bugs, errors, and broken functionality in Python, Node.js, and Dot Net applications.
This gig is for existing projects where your API is failing, returning errors, not saving data correctly, or not working as expected.
I can help with:
- Backend API bug fixing
- REST API errors
- Authentication and authorization issues
- Database query problems
- API request and response issues
- JSON mapping errors
- Python, FastAPI, Flask bugs
- Node.js, Express.js, NestJS bugs
- ASP.NET Core and C# API bugs
- Error handling and validation
- Debugging, testing, and fix notes
You will receive a working fix, source code changes, and clear notes on what was fixed.
Basic package is for 1 small backend API bug or error. If your issue involves multiple files, database changes, deployment, authentication, production errors, or unclear logs, please message me first so I can check the issue and suggest the right package.
Please share the error message, expected behavior, current behavior, relevant code, API endpoint, and steps to reproduce the bug.
Maak kennis met Lalit Rajput
Lalit Rajput
API Integrations and Automation with Python and Dot Net
- Afkomstig uitVerenigde Arabische Emiraten
- Lid sindsdec 2019
- Gem. reactietijd1 uur
Talen
Engels, Hindi
Backend engineer with 12 years of experience building API integrations, automation, web scraping, and production-ready services in Python and Dot Net. I help businesses fix backend issues, connect third-party APIs, build scheduled jobs, and deliver clean, maintainable systems that run reliably in production. Strong in FastAPI, Flask, ASP.NET Core, SQL Server, PostgreSQL, Docker, AWS, and Azure.
Andere Software development diensten die ik aanbied
Veelgestelde vragen
What type of backend bugs can you fix?
I can fix API errors, broken endpoints, auth issues, database errors, JSON mapping issues, validation bugs, and backend logic problems.
Which technologies do you work with?
I work with Python, FastAPI, Flask, Node.js, Express.js, NestJS, ASP.NET Core, C#, SQL Server, PostgreSQL, and MySQL.
Can you fix production API issues?
Yes, but please message me first with logs, error details, and impact so I can check the scope and suggest the right package.
What do you need before starting?
I need the error message, expected behavior, current behavior, related code, API endpoint, and steps to reproduce the issue.
Do you provide documentation?
Fix documentation is included in Standard and Premium. It can also be added as an extra service for Basic.
Do you provide source code?
Yes. I provide the source code changes and clear notes about what was fixed.
