Khawar H.

I’m a Senior Flutter Developer and Mobile App Engineer helping startups and businesses build production-ready Flutter, iOS, Android, and React Native apps, from MVP development and UI/UX through launch, scaling, maintenance, and long-term product development.

With 11+ years of software development experience, 150+ mobile apps delivered, and $600K+ earned on Upwork, I specialize in Flutter app development, mobile app development, MVP development, SaaS development, AI mobile app development, and end-to-end product engineering.

Top Rated Plus | 96% Job Success | $600K+ earned | 167+ Upwork jobs | 2,500+ hours | 4.9★ | 100+ client reviews

Whether you need an Expert Flutter Developer, Senior Flutter Developer, Flutter Specialist, Mobile App Developer, Mobile App Engineer, or additional senior capacity for your existing Dev Team, I can take ownership of your product or work alongside your team.

WHAT I CAN HELP YOU BUILD

• Flutter App Development: Flutter apps, Flutter mobile app development, cross-platform applications, FlutterFlow, Expo, and custom mobile solutions
• iOS & Android App Development: native and cross-platform mobile applications, Swift, SwiftUI, Figma to app, and app migration
• React Native Development: React Native applications, maintenance, legacy migration, refactoring, and performance optimization
• MVP & Product Development: MVPs, Software Development, SaaS applications, business platforms, marketplaces, CRM, HRM, ERP, CMS, POS, inventory, and logistics
• AI Mobile App Development: OpenAI, ChatGPT, Claude, Gemini, AI chatbots, AI assistants, conversational AI, OCR, document processing, speech-to-text, content generation, and AI automation
• Backend & API Development: Firebase, Firestore, Cloud Functions, FCM, Crashlytics, Supabase, Node.js, Laravel, REST APIs, GraphQL, PostgreSQL, MySQL, MongoDB, AWS
• Admin Dashboard Development: web-based admin panels, reporting dashboards, business management platforms, and custom backend systems
• Integrations: Stripe, PayPal, RevenueCat, payment gateways, in-app purchases, subscriptions, Google Maps, Mapbox, geolocation, push notifications, deep linking, NFC, QR, camera, Bluetooth, WebRTC, Socket IO, real-time features
• App Launch & Support: Testing and QA, CI/CD, App Store and Google Play deployment, analytics, Firebase Analytics, AppsFlyer, maintenance, enhancement, and ongoing support

FLUTTER & MOBILE APP DEVELOPMENT:

Flutter is my primary specialization. I build scalable applications using BLoC, Riverpod, Provider, GetX, MVVM, Clean Architecture, offline-first sync, and prototype development. I focus on clean code, maintainability, performance, and long-term scalability.