Muhammad Zubair Abdullah K.

React Native & Full-Stack JavaScript Developer | React.js, TypeScript,

React Native & Full-Stack Mobile App Developer | iOS, Android, Web, Firebase & Node.js I help businesses and startups build high-performance mobile and web apps that scale effortlessly With 3+ years of experience delivering production-ready apps for iOS, Android, and web, I focus on seamless user experiences, optimized performance, and clean, maintainable code What I can deliver Cross-platform mobile apps using React Native, Expo, and TypeScript Full-stack web apps with Next.js, Node.js, Firebase, and MongoDB/PostgreSQL Secure APIs (REST/GraphQL), authentication, and payment integrations Offline-first apps with Realm, optimized for scalability and reliability Clean UI with TailwindCSS, Material UI, or custom design systems Why work with me Clear, consistent communication and fast turnaround Scalable and secure architecture built to last Proven track record of 5-star client feedback on Upwork Experience taking apps from idea to launch and beyond Notable Projects Food Delivery Platform (978Eats) A complete system with customer, restaurant, and driver apps, featuring real-time order tracking, Google Maps integration, and a scalable Node.js backend FreeInvoice – Invoice Maker An invoicing app with Stripe integration, reusable client data, invoice tracking, and real-time support chat Cuddy A social and community-focused mobile app designed for seamless user engagement with Firebase-backed authentication and chat features FoodPlus A food discovery and ordering app with offline support, modern UI, and optimized performance for both iOS and Android AI Assistant A smart cross-platform assistant that delivers instant answers, code help, and multi-language support. It includes real-time responses, chat archiving, premium upgrade options, and 24/7 live human support, all packaged in a custom UI with a smooth conversational experience Chatbot App An AI-powered chatbot solution integrated with advanced NLP tools and real-time backend processing for smarter conversations Education Bachelor’s Degree in Computer Science Ongoing learning in mobile app development, cloud services, and scalable architecture If you’re looking for a reliable developer who combines technical expertise with a focus on user experience and business goals, let’s talk!