React Native Developer — Luxury Collector Mobile App (iOS + Android, Shopify + Firebase

We need an experienced React Native developer to build a premium collector mobile app for a luxury limited-edition brand. The app is not a shop. It is a membership portal — identity, exclusivity, and retention first. Commerce second. All copy is written. All screens are designed. Full developer brief is ready. We need clean, fast, premium execution. The app has three jobs: — Make collectors feel they are inside something most people will never access — Sync their purchase history from Shopify automatically on registration — Give app users a permanent advantage over everyone else Core Technical Requirements: Registration is gated: A user cannot register unless their email exists in Shopify as a customer with at least one completed paid order. This is the most important business logic in the app. It must be airtight. All payments happen on Shopify: Zero in-app payment processing. No Stripe. No Apple Pay in-app. When a user taps buy — they are redirected to Shopify via expo-web-browser. The app never touches payment data. Automatic collection sync: On registration, the customer's full Shopify order history is pulled and their collection is populated instantly — serial numbers, Certificates of Authenticity, everything. New orders sync via Shopify webhook within 60 seconds of payment. Full Scope: Backend (Firebase Cloud Functions): — Shopify customer verification on registration — orders/paid webhook receiver — serial assignment, Firestore write, COA PDF generation, push notification — Full historical order sync on registration — Shadow profile system for buyers without app accounts — Push notification system with quiet hours (10pm–8am local) and weekly cap enforcement — Serial number verification for authenticity scanner — Voucher issuance and referral tracking App (React Native — Expo): — 18 screens — full list provided in brief — Firebase Auth — email, Apple Sign In, Google Sign In, biometric — Firestore real-time listeners for live drop counters — Shopify Storefront API for product catalogue and inventory — Expo Notifications + FCM for push delivery — COA PDF generation and viewer — QR/barcode scanner for authenticity verification — App Store + Google Play submission included in scope Tech Stack: React Native (Expo Managed) · TypeScript · Firebase (Auth, Firestore, Storage, Functions, FCM) · Shopify Storefront API · Shopify Admin API (backend only) · Expo Router · Zustand · expo-web-browser · expo-camera What We Provide: — Full developer brief PDF (11 pages — architecture, data structure, security rules, QA checklist) — Complete screen designs (Lovable mockup link) — All copy for every screen — Shopify credentials (after NDA) — Firebase project (you added as Editor) — Brand assets — logo, fonts, colors — Fast responses and clear decisions throughout Requirements: — Minimum 3 years React Native experience — 2+ published apps on App Store and Google Play — links required — Shopify Storefront API and Admin API experience — required, not negotiable — Firebase experience (Firestore, Cloud Functions, FCM) — required — TypeScript — required — Available to start within 1 week — Available for daily check-ins during build — Reply with the word COLLECTOR at the start of your proposal Open to your expertise: If you've built e-commerce or membership apps at a high level and see a better approach to any part of this — stack, architecture, webhook handling, checkout flow — bring it. We have a clear vision but we're open to being challenged by someone who knows this space better than us.