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English
$
USD
I will fix bugs and errors in your fastapi or flask backend
Kishan
About this gig
Is your FastAPI or Flask application throwing errors, crashing, or behaving unexpectedly?
I fix Python backend issues fast and explain exactly what went wrong, so the same bug doesn't come back.
I work with:
- FastAPI and Flask REST APIs - PostgreSQL and MySQL database issues (queries, migrations, connections)
- Authentication and JWT/session bugs
- Third-party API integration errors (Stripe, Twilio, OpenAI, etc.)
- Async/await issues and performance bottlenecks
- Deployment-related errors (500s, environment/config issues)
How it works:
1. Share your error message, logs, or a description of the unexpected behavior
2. I review your code and identify the root cause
3. I fix it, test it, and explain the fix in plain language
I have around 2 years of hands-on experience building and maintaining Python backend systems in production, including full API design, database work, and cloud deployment. I focus on clean, minimal fixes no rewriting your codebase unless you ask for it.
Send me your error or a link to your repo before ordering if you'd like a quick assessment of scope.
Get to know Kishan
Kishan
Software Engineer
- FromSri Lanka
- Member sinceSep 2023
- Avg. response time1 hour
Languages
Tamil, English
I develop modern web applications using React, FastAPI, PostgreSQL, MongoDB, and Redis with a strong focus on clean architecture, security, and production-ready deployment.
I have hands-on experience building Python full stack applications for over 3+ years, including API development, authentication systems and dashboards
My development approach focuses on:
* Secure JWT authentication using HTTP-only cookies
* Role-Based Access Control (RBAC)
* Clean and maintainable backend architecture
* Scalable API design
I can help you build:
* Full stack web applications
* SaaS platforms
* REST APIs
FAQ
How do I share my code with you?
GitHub, zip file, or direct paste — whatever works for you. All code is kept strictly confidential.
What if you can't fix my issue?
I'll tell you upfront before you order. I never take a job I'm not confident about.
Do you fix frontend issues too
My focus is Python backend. For minor frontend bugs connected to backend issues — yes. Full frontend work — no.
Can you work with my existing codebase?
Absolutely. Most of my work is jumping into existing projects, not starting from scratch.
What if the bug comes back after delivery?
I cover the same bug within 7 days of delivery at no extra charge.
