Zain A.

I'm Zain, a Flutter & React Native developer with 5+ years building AI-powered mobile apps for iOS and Android. 100% Job Success, Top Rated, $10K+ earned on Upwork. I take founders from idea to a launched app, or take over an app a previous developer left half-finished and get it back on track. WHO I HELP Startups and small teams who need a senior mobile engineer to build a cross-platform app from scratch, or stabilize and extend one that's already in progress. I've shipped apps across fintech, health & wellness, social, travel & booking, edtech, real estate, e-commerce, and on-demand services. WHAT I BUILD - Cross-platform apps: Flutter & React Native for iOS/Android from one codebase, with native modules (SwiftUI, Jetpack Compose) when the app needs them - AI-powered mobile apps: AI-integrated wellness, health, and productivity apps, including HIPAA-compliant health solutions - Hardware-connected apps: Bluetooth device control, NFC integration, IoT apps - SaaS & subscription apps: auth, in-app purchases, push notifications, backend on Node.js/Supabase - App rescue & improvement: Bug fixes, feature additions, and stabilizing apps abandoned by a previous developer HOW I WORK 1. Free 30-min consultation: We turn your idea into a scoped technical plan 2. Milestone-based delivery: You see a working build at every stage, not just at the end 3. Clean handoff: Tested code and documentation any developer can pick up WHAT A CLIENT SAYS "Zain inherited a project abandoned by a previous developer and has been a superstar, expert advice, clear reporting, and logical explanations at every step. After a lot of bad experiences on Upwork, Zain is someone you can genuinely trust to do the right thing. We've kept him on for ongoing work and he continues to deliver above expectations." Tim Pullyn, Digital Diligence Limited RECENT WORK - FitPulse: A health & fitness tracking app with BLE wearable connectivity: step count, heart rate, and workout sync straight from the device, live workout-route mapping on Google Maps, and a real-time leaderboard powered by Firebase Cloud Functions. - MedChat+: A secure, real-time chat and appointment app connecting doctors and patients, with Firebase-based messaging, in-app premium services, and a scalable Bloc-based architecture for clean state management. - Manafa: Contributed to a business financing platform that simplifies access to funding, with real-time loan tracking and secure backend integration behind a seamless UI. Best fit: Founders and teams who want a mobile engineer who owns the outcome, not just tickets. Not a fit if you're looking for the lowest hourly rate, I optimize for a clean, maintainable app over quick-and-dirty code. Free 30-min consultation for your project. Hit the invite button and let's build something users will love.