The app is a premium AI‑powered health and wellness app that unifies nutrition, movement, sleep, stress, and habit tracking into one intelligent experience. Unlike traditional fitness apps, ZipVita uses conversational AI, real‑time personalization, and behavior‑change architecture to help users build sustainable habits. We are building a cross‑platform mobile app using React Native, with simultaneous launch on iOS, Android, and PWA. You will be responsible for turning a detailed product blueprint into a production‑ready application. Role Overview We are looking for a Senior React Native Developer who can architect, build, and deliver the full ZipVita mobile app. You must be strong in: React Native (TypeScript) State management (Redux Toolkit / Recoil / Zustand) Navigation (React Navigation) API integration (REST + AI endpoints) Real‑time data flows Performance optimization Pixel‑perfect implementation from Figma Building complex, modular feature sets This is a large, multi‑module app, so experience with scalable architecture is essential. Core Responsibilities 1. App Architecture & Foundation Set up a scalable React Native architecture (TypeScript, modular folder structure) Implement navigation (bottom tabs, stacks, modals, sheets) Build reusable UI components based on the design system Implement dark mode, theming, and accessibility support 2. AI Health Coach Build full chat interface with: Streaming responses Quick reply chips Rich cards (meals, workouts, charts) Voice input Integrate AI endpoints (OpenAI/Anthropic or custom backend) Implement proactive AI notifications & insights 3. Nutrition Module Food logging (text, voice, barcode scanning, photo recognition) Meal planner with drag‑and‑drop Recipe library Macro rings, nutrient breakdown, hydration tracking Intermittent fasting timer 4. Movement Module Exercise library (GIF animations) Workout builder Active workout mode (timers, rep counters, PR tracking) GPS tracking for cardio Wearable integrations (Apple Health, Google Fit, Fitbit, Oura, Whoop) 5. Wellness Module Sleep tracking dashboard Mood check‑ins Stress & HRV insights Mindfulness sessions Hydration & supplement tracking 6. Insights & Analytics Trend charts Progress photos AI‑generated weekly reports Correlation engine UI 7. Gamification & Social ZipScore system Streaks + Streak Shield logic Challenges & ZipCoins ZipCircle (friends, groups, highlights) 8. Performance, QA & Deployment Optimize for 60fps animations Implement skeleton loaders & micro‑interactions Handle offline mode & caching Prepare builds for TestFlight & Play Store