I’m building a Flutter-based Android platform whose single, clear goal is to collect customer data for campaign and lead generation. The first release concentrates on capturing one data point—phone numbers—through an intuitive flow that feeds a REST-backed API, then visualises the results in a real-time dashboard. The work demands proven Flutter expertise, clean architecture habits, advanced async handling and pagination, plus the confidence to wire everything to a sizeable API footprint. If you have tackled OAuth flows, ad-tech integrations or performance tuning, that background will be a welcome bonus. What I expect from you • A production-ready Flutter codebase, structured for long-term maintenance and easy feature growth • Seamless REST integration, complete with robust error states, loading indicators and retry logic • A slick dashboard that surfaces the captured phone numbers and key stats in near real time • Release-grade APK/AAB along with concise deployment notes (Play Console, signing, versioning, etc.) When you reply, please share Play Store links (or APKs) for Flutter apps you’ve shipped, outline the architecture pattern you prefer, note any experience building API-heavy products, and provide a realistic timeline, cost and team size (if applicable). Proposals without solid Flutter references will be skipped.