Senior Flutter/React Native Developer for AI App

Project Type: Fixed Price Estimated Budget: $3,000 – $6,000 (open to discussion based on scope and experience) Estimated Duration 6 – 10 weeks Experience Level: Expert About the Project We are building a cross-platform mobile app (iOS + Android) with a clean, modern UI and a scalable backend. The product is at the MVP stage and we are looking for a senior mobile developer who can take ownership of the build end-to-end — from architecture to App Store / Play Store deployment. The app includes AI-powered features (OpenAI / GPT integration), user authentication, in-app payments, real-time data sync, and push notifications. We have wireframes and a feature specification ready to share with shortlisted candidates. Scope of Work - Build a production-ready mobile app using **Flutter** OR **React Native (Expo + CLI)** - Implement clean architecture (Bloc / GetX for Flutter, or Redux/Zustand for RN) - Integrate **Firebase / Supabase** for authentication, database, and storage - Integrate **OpenAI / GPT APIs** for AI-powered features - Implement **Stripe** for in-app subscriptions and payments - Set up **push notifications** and **deep linking** - Connect with our Node.js backend (or build one if needed) - Optimize for performance, scalability (10,000+ users), and offline support - Submit and publish the app on the App Store and Google Play Must-Have Skills - 3+ years of mobile app development with Flutter and/or React Native - Proven experience publishing apps on both iOS App Store and Google Play - Strong knowledge of state management, REST APIs, and async architecture - Hands-on experience with Firebase / Supabase / PostgreSQL - Experience integrating OpenAI / LLM APIs into mobile apps - Stripe / in-app purchase experience - Clean, well-documented code and Git workflow Nice to Have - Experience with FlutterFlow or low-code prototyping - Experience scaling SaaS mobile apps - Google / Meta / Flutter certifications - Familiarity with AWS or GCP To Apply, Please Include: 1. Links to 2–3 production apps you've built (App Store / Play Store links preferred) 2. A brief note on whether you'd recommend Flutter or React Native for this project, and why 3. Your estimated timeline and a rough milestone breakdown 4. Your availability (hours per week) over the next 8 weeks We value clean code, clear communication, and developers who think like product owners. If that's you, we'd love to talk. Looking forward to your proposal!