Senior Flutter Developer – Convert Production Web App

We are seeking frontend-only Flutter app conversion of an existing web app. Backend is live in production — no modifications required.
Tech Stack:
Firebase Auth | Firestore | Cloud Functions (Callable) | Stripe | RevenueCat
Flutter 3.x | Riverpod | Material Design 3 | Dark Theme
Clean Architecture | iOS & Android
Project Phases:
Phase 1 — Scaffold + Auth + Role Routing
Phase 2 — Onboarding Flow
Phase 3 — Client Bag View
Phase 4 — Pro Dashboard
Phase 5 — Messages + Credits + Reports
Requirements:
Connect Flutter app to existing Firebase backend
Call existing Cloud Functions — no backend changes
Follow fixed Firestore schema
Milestone-based delivery with code review at each phase
Must Have:
2+ production Firebase Flutter apps
Strong Firestore & Cloud Functions integration experience
Clean architecture & Riverpod state management
App Store & Play Store deployment experience
Contract duration of less than 1 month.
Mandatory ...