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English
$
USD
I will fix python backend bugs and API errors
Jeferson Sousa
About this gig
Fix bugs in your FastAPI or Python backend API.
Dealing with broken CRUD logic, API errors, or failed integrations? I help debug and fix Python backend issues with reliable and maintainable solutions.
What I can help fix:
- FastAPI errors and broken endpoints
- HTTP 500 and API response issues
- Broken CRUD operations
- SQLAlchemy and database bugs
- JWT and authentication issues
- CORS and async issues
- Docker environment problems
- Webhook and API integration errors
- Stripe, OpenAI, Discord, Telegram, and WhatsApp API issues
- Timeout and request handling issues
What you get:
- Backend debugging and troubleshooting
- Clean and reliable fixes
- Consistent API behavior
- Clear communication throughout the project
This Gig focuses on backend bug fixing and small backend improvements.
Not for full application development or large-scale architecture work.
IMPORTANT: Please message me before ordering with:
- Error description
- Logs or stack trace
- Git repository access
- Steps to reproduce the issue
Get to know Jeferson Sousa
Jeferson Sousa
Backend Developer: APIs, Automation e Integrations
- FromBrazil
- Member sinceFeb 2026
Languages
Portuguese, English
I help build and stabilize Python backends with reliable APIs and clean structure.
I work on real backend tasks like CRUD endpoints, database integration, and fixing broken API behavior.
• Build and improve FastAPI and Django endpoints
• Fix API bugs and inconsistent responses
• Set up Docker and CI/CD (GitHub Actions)
• Integrate external services (payments, WhatsApp, Discord, Telegram)
• Improve performance and reliability
• Add tests to prevent regressions
Focus: clean CRUD logic, consistent API responses, and maintainable code.
FAQ
What do you need to start fixing my bug?
I need: * A clear error description * Logs or stack trace * Access to your source code or project files * Steps to reproduce the issue Providing these details helps speed up debugging and avoid unnecessary delays.
How should I provide my source code?
You can provide your source code or project files through Fiverr using attachments. For larger projects, access to a trusted code repository may be provided when necessary. Please do not send passwords or private keys.
Can you fix bugs in any Python backend project?
Yes. I can debug Python backend projects across APIs, business logic, databases, integrations, authentication, async code, and deployment environments. I adapt to the existing stack and focus on the specific issue without unnecessary changes.
Do you fix bugs in live production environments?
Yes, when safe access and sufficient information are provided. I prioritize controlled changes and avoid unnecessary modifications to production systems.
What if the bug is more complex than expected?
If the issue requires more work than the selected package covers, I will explain the situation before proceeding. We can adjust the scope or use a custom offer when necessary.
Can you ensure the bug won't come back?
I will identify and address the root cause of the issue rather than only treating its symptoms. However, I cannot guarantee that unrelated code or future changes will not introduce new issues.
Why do you require communication through Fiverr?
Keeping communication on Fiverr helps protect both parties and keeps project details documented throughout the order.
