Revamp Flutter/MERN Legacy App: Senior Full-Stack Developer

Job Title: Senior Full-Stack Developer Needed: Fix & Revive Legacy Flutter/MERN App
Project Overview: I have an existing application called Gurash that has not been updated in several years. It is currently failing to build due to outdated dependencies and SDK versions.
Tech Stack:
•
Frontend: Flutter (Legacy code, needs migration to latest version).
•
Backend: MERN Stack (Node.js, Express, MongoDB).
•
Integrations: Firebase (Auth, Firestore, Cloud Messaging), GalliMaps/Google Maps API.
The Task:
1.
Fix all build errors and migrate the Flutter app to the latest stable version.
2.
Update all outdated dependencies in the MERN backend.
3.
Ensure Firebase and Map integrations are working correctly with new SDKs.
4.
Perform a full audit to ensure the app is functional and ready for deployment.
APPLICATION INSTRUCTIONS (READ CAREFULLY)
You must apply using the exact format below. Applications that do not follow this format or omit any detail will be rejected within seconds.
1. Number of years of experience with MERN: [Insert Years] 2. Experience with specific technologies:
•
MongoDB: [Yes/No + years]
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Firebase (Auth/FCM): [Yes/No + years]
•
Google Maps/GalliMaps: [Yes/No + years]
•
Flutter (Build fixes/Migration): [Yes/No + years] 3. Country: [Insert your country] 4. Team or Solo: [Specify if you are a solo developer or an agency/team]
Note: I am looking for someone who can jump in immediately and handle legacy code. If you cannot fix "Access Denied" or "Gradle Sync" errors, do not apply.