Zubair A.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

React Native developer focused on AI-powered mobile apps. I build iOS and Android apps with Expo and TypeScript, and I add AI features (OpenAI, Claude, Gemini) that hold up in production, not just in a demo. Top Rated on Upwork, 5+ years in React Native, certified by Meta, Google Developers and DeepLearning.AI. WHAT I'M USUALLY HIRED FOR 1) Building a new React Native app from an idea or a Figma design, through to the App Store and Google Play 2) Adding AI to an existing app: assistants, chat, voice, and search over your own data (RAG), with streaming responses and usage limits 3) Rescuing an app that is already built: crashes, slow performance, background GPS that stops recording, failed builds, App Store rejections SELECTED WORK • Floty.ai, a fleet platform used by 500+ companies: real-time GPS tracking, route optimization and geofencing, plus an AI dispatch system that contributed to a documented 25% fuel saving for clients. I also cleared Android performance bottlenecks by reworking Redux state and rendering logic. • Rivetgun.ai, an AI SaaS product: OpenAI integration, multi-context RAG, AI agent orchestration, usage limits, subscriptions and billing. • Jeyad: live auction platform for iOS and Android. • Rise: offline-first productivity app for iOS and Android. WHERE I GO DEEPER THAN MOST • Background location: keeping tracking alive on Android, battery-aware update intervals, and the permission flows Apple and Google require before they approve an app • AI inside mobile apps: API keys kept server-side, streaming responses, function calling, retrieval over your own content, and usage caps so AI costs stay predictable • Releases: EAS Build, App Store Connect, Google Play Console, subscriptions and in-app purchases, and fixing store rejections rather than guessing at them STACK React Native, Expo, TypeScript, React, Next.js, Node.js, Firebase, Supabase, PostgreSQL, REST and GraphQL APIs, Redux, Zustand, React Query, WebSockets, Stripe and in-app purchases, Google Maps and Mapbox. HOW I WORK I read your codebase before I change it. You get clear updates on what is done, what is next and what is blocked. If a timeline or an approach will not work, I tell you before you pay, not after. Send me your repo, your Figma file, or a short description of the problem, and I'll reply with an honest plan, a timeline and an estimate.