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English
$
USD
I will fix python fastapi backend, sql and rest API bugs
Luis Sanchez
About this gig
Is your Python or FastAPI backend returning errors, failing requests, producing incorrect results, or breaking database operations?
I will diagnose the issue, identify the root cause, and implement a focused fix within the agreed scope.
I can help with:
- Python backend errors and exceptions
- FastAPI endpoint bugs
- REST API errors and unexpected responses
- SQL and PostgreSQL query problems
- Backend logic and data validation issues
- Database-related bugs
- Testing and verification after the fix
My approach is diagnosis first. I review the error, expected behavior, relevant code, logs, database context, and technical environment before making changes.
Package scope:
Basic: 1 small reproducible issue
Standard: up to 2 related issues
Premium: up to 3 related backend issues
You will receive the corrected source code within the agreed scope and a clear explanation of what was fixed.
Please contact me before ordering for large codebases, deployment, authentication, third-party services, security, new features, major refactoring, or unclear requirements.
Get to know Luis Sanchez
Luis Sanchez
Technical Project Manager, Python, SQL and Automation
- FromColombia
- Member sinceJun 2021
- Avg. response time1 hour
Languages
Spanish, English
Technical Project Manager and technology consultant with 15+ years leading software, digital transformation and IT initiatives. I combine Project Management, Business Analysis and Agile/Scrum with hands-on work in Python, SQL, PostgreSQL, APIs, data processing, automation and Microsoft Excel. I help clients automate repetitive processes, structure and transform data, diagnose technical issues, improve reporting, and recover technology projects with clear scope, measurable deliverables and practical execution.
My Portfolio
FAQ
1. What do you need from me before starting?
Please provide a clear description of the problem, the expected behavior, the actual behavior, any error messages or logs, and the relevant code or files. If possible, include the steps required to reproduce the issue.
2. Can you fix FastAPI and REST API issues?
Yes. I can diagnose and fix focused issues involving FastAPI endpoints, Python backend logic, REST API responses, validation, SQL queries, and related database behavior, provided the problem fits the selected package.
3. What counts as one issue?
One issue is a specific, reproducible technical problem with a defined expected behavior. Multiple unrelated bugs, new features, or problems across different systems may require a larger package or a custom offer.
4. Do you guarantee every bug can be fixed?
No technical issue should be guaranteed before diagnosis. I first review the code, logs, dependencies, environment, and available evidence. If the issue cannot be resolved within the agreed scope, I will clearly explain the findings and recommended next steps.
5. Are new features or complete application development included?
No. This Gig is focused on diagnosing and fixing existing Python, FastAPI, SQL, database, and REST API issues. New features, major refactoring, complete applications, complex deployments, security work, and large migrations require separate scope and pricing.
