Senior Full-Stack Engineer Needed – Final Stabilization + Fix Broken FeaturesFreelanceJobs • Canada
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Senior Full-Stack Engineer Needed – Final Stabilization + Fix Broken Features
FreelanceJobs
- Canada
- Canada
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It instantly filters out time-wasters because real engineers will actually test it before applying.
Here's the updated Upwork post with that included (copy/paste ready):
---
# Senior Full-Stack Engineer Needed – Final Stabilization + Fix Broken Features (7-Day Deadline)
**Project Type:** Short-Term, High Priority
**Timeline:** 7 Business Days (Non-Negotiable)
**App Status:** Fully Built + Live Online
**Live Site:** ****
---
## Project Overview
My AI fintech app is already fully built out and live online at:
****
* UI is complete
* App is functional overall
* Platform is live and usable
However, there are a few key functions that are not working correctly, and I need a senior-level engineer to stabilize the system so everything flows smoothly end-to-end.
This is NOT a rebuild.
This is NOT UI work.
This is final debugging, stabilization, and production hardening.
---
## What I Need Done
### Fix Critical Non-Working Features
A few core features are failing entirely or inconsistently.
I need you to:
* Identify why they're failing
* Repair backend logic and broken connections
* Ensure frontend backend AI flows work correctly
* Fix API handling, database calls, and function triggers
### Stabilize User Flow
* Smooth performance and execution
* Improve error handling and edge-case handling
* Remove incomplete or patchwork logic
* Ensure features work consistently across the full app
### Final Launch Readiness
* Confirm system stability
* Confirm deployment settings are correct
* Ensure the app is secure and production-ready
---
## Requirements (Very Important)
* Must be able to start immediately
* Must be able to complete within **7 business days**
* Must be comfortable working in an existing codebase
* Must have strong debugging skills
* Must have experience with production deployments
---
## Current Setup
* Built on Replit
* AI integration (OpenAI API)
* Web-based fintech / credit intelligence platform
* Live at ****
---
## Ideal Candidate
* 5+ years full-stack experience
* Strong backend debugging + architecture skills
* Experience stabilizing nearly finished apps
* Experience with AI API integrations
* Experience with deployment + production readiness
Bonus:
* Experience migrating projects off Replit if needed
---
## To Apply
Before applying, please visit ****.
Then include:
1. Confirmation you can complete in **7 business days**
2. Your experience with debugging live production apps
3. Your experience with AI integrations
4. Your approach for stabilizing and testing the system quickly
---
## Budget
Open to milestone-based or fixed-price.
This is urgent and serious — quality matters more than cheapest.
Contract duration of 1 to 3 months.
Mandatory skills: JavaScript, React, Python, CSS, HTML, PHP, Web Development, , API
Sprachkenntnisse
- English
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