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I started coding at a very young age and have now spent 17+ years building real software products used by thousands of users worldwide. Over the last several years I’ve focused heavily on Flutter AI-powered applications backend systems and scalable mobile architecture. I'm an Anthropic Claude Certified Architect (Foundations) with expertise in designing production-grade AI applications including agentic architectures Model Context Protocol (MCP) tool integration prompt engineering context management and Claude Code workflows. Today I use AI-assisted development daily with Claude Code OpenAI Codex and modern agentic workflows to build products dramatically faster while maintaining clean architecture and long-term scalability. I specialize in building high quality cross-platform mobile applications for iOS and Android using Flutter and Dart with production-ready backend systems realtime infrastructure and AI-powered experiences. I’ve worked with startups YC-backed companies SaaS platforms AI products ecommerce systems healthcare apps fintech platforms social apps and automation systems. My experience includes both fast-moving MVP development and large scale production applications. One of my biggest projects was building the mobile app for Cartpanda a YC-backed ecommerce platform from Brazil where I worked as a Senior Mobile Engineer and helped scale a complex production application used by real businesses. I also build AI-powered systems and agentic applications using OpenAI Claude and Gemini with modern LLM workflows. 🚀 Core Skills & Technologies 📱 Mobile & Flutter Flutter SDK, Dart, Riverpod, Bloc, FlutterFlow, Rive animations, realtime systems, WebSocket integrations, offline-first architecture, Firebase Cloud Messaging (FCM), RevenueCat, Superwall, payment systems, subscription platforms, native iOS and Android integrations, App Store Connect and Google Play Console ⚙️ Backend & APIs NodeJS, TypeScript, FastAPI, Supabase, Firebase, PostgreSQL, REST APIs, realtime backend systems, authentication systems, Supabase RLS, Clerk Auth, Stripe integration, Dockerized backend services, scalable API architecture and admin dashboards 🌐 Web & Frontend NextJS, React, Tailwind CSS, shadcn/ui, Vercel, responsive frontend systems, SaaS platforms, realtime dashboards, internal business platforms and AI-powered web applications 🤖 AI & Automation OpenAI, Claude, Gemini, multimodal AI systems, AI agents, AI chatbots, LangChain, RAG pipelines, OCR workflows, vector search systems, MCP workflows, AI document processing systems, n8n and Make automation 🎙️ Voice AI & Realtime AI Retell AI, Vapi, LiveKit, Deepgram, ElevenLabs, realtime voice agents, conversational AI systems, speech-to-text pipelines, text-to-speech systems, low latency audio streaming, AI phone agents and AI receptionist workflows ☁️ DevOps & Infrastructure Docker, Docker Compose, DigitalOcean, Ubuntu servers, Nginx, Redis, Celery, GitHub Actions, Firebase Hosting, Cloudflare DNS, CI/CD workflows, Linux deployment and scalable cloud infrastructure

Hi there, Building a mobile app is easy — building one that is fast, scalable, and ready for real users is where most developers fail. I help startups and businesses turn ideas into high-quality Flutter apps that are clean, scalable, and production-ready. 𝗛𝗼𝘄 𝗬𝗼𝘂𝗿 𝗔𝗽𝗽 𝗚𝗼𝗲𝘀 𝗙𝗿𝗼𝗺 𝗜𝗱𝗲𝗮 → 𝗟𝗮𝘂𝗻𝗰𝗵: I follow a structured development process: → UI implementation (Pixel-perfect Flutter UI) → API integration (Laravel / REST APIs) → State management & app logic → Testing & performance optimization → App deployment (Play Store & App Store) This ensures your app is stable, smooth, and ready to scale. #FREE consultation available: I can help you: → Validate your app idea → Plan features & MVP → Choose the right backend & architecture → Estimate cost & timeline 𝗧𝘆𝗽𝗲𝘀 𝗼𝗳 𝗔𝗽𝗽𝘀 𝗜 𝗕𝘂𝗶𝗹𝗱: I don’t just build basic apps — I build real-world applications: ✅ Service booking apps ✅ Marketplace apps (multi-vendor / multi-role) ✅ E-commerce mobile apps ✅ Appointment & scheduling apps ✅ Food delivery / ordering apps ✅ Subscription-based apps ✅ Business & admin apps ✅ Custom startup MVP apps 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝘁𝗿𝗲𝗻𝗴𝘁𝗵: → Flutter (Dart) → Firebase (Auth, Firestore, Notifications) → REST API integration → Laravel backend (for scalable systems) → Payment gateway integration → Push notifications → Clean architecture & reusable code 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲: → I understand both frontend + backend (full system mindset) → I focus on performance & user experience → I communicate clearly and deliver on time → I build apps that are ready for real users — not just demos 𝗣𝗼𝘀𝘁-𝗟𝗮𝘂𝗻𝗰𝗵 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 I provide support after delivery to fix issues, improve performance, and help you scale your app. If you're looking for a Flutter developer who can actually deliver a complete, working app — let’s connect. Send me a message and let’s get started.

I'm a React Native Developer specializing in building fast, scalable, and production-ready mobile applications. I help businesses develop new mobile apps, improve existing React Native applications, and solve performance bottlenecks that affect user experience. My expertise includes: • React Native • JavaScript & TypeScript • React • Node.js • REST API Integration • Firebase • Redux Toolkit • React Query • Performance Optimization • Debugging & Profiling I pay close attention to application performance and code quality. Whether it's reducing unnecessary re-renders, improving rendering performance, fixing memory-related issues, optimizing API interactions, or making the application more maintainable, my goal is to build software that performs reliably in production. I believe communication is just as important as writing code. I keep clients updated, ask the right questions, and focus on delivering clean, maintainable solutions on time. If you're looking for a React Native developer who values performance, reliability, and long-term maintainability, I'd be happy to discuss your project.

Need a Flutter mobile app developer to turn your idea, Figma, or existing codebase into a production-ready iOS and Android app? I bring 7+ years of Flutter/Dart experience, 40+ products delivered, and a Top Rated record with 100% Job Success. I help founders and product teams build, improve, and launch cross-platform mobile apps. Whether you need a fast MVP, a polished consumer app, complex integrations, or help stabilizing an existing Flutter codebase, I focus on maintainable architecture, reliable features, and a smooth path to release. WHAT I CAN BUILD • Flutter mobile app development for iOS and Android • Startup MVPs and production applications • Figma-to-Flutter UI, responsive layouts, animations, and polished mobile UX • Firebase Authentication, Firestore, Cloud Functions, FCM, chat, notifications, and analytics • Supabase with PostgreSQL, authentication, storage, real-time data, and offline-aware workflows • REST API, GraphQL, Node.js backend, admin dashboard, and third-party integrations • Stripe, subscriptions, in-app purchases, Google Maps, GPS, Bluetooth LE, QR, and camera features • Flutter bug fixes, performance optimization, refactoring, code cleanup, and legacy app rescue • TestFlight, App Store, Google Play, Fastlane, GitHub Actions, and CI/CD release support • AI mobile app development with OpenAI, Vapi, ElevenLabs, LiveKit, assistants, automation, and real-time voice features ENGINEERING STACK Flutter, Dart, Firebase, Supabase, Riverpod, BLoC, iOS, Android, REST API, GraphQL, Node.js, PostgreSQL, Stripe, Google Maps API, Bluetooth LE, OpenAI, Vapi, ElevenLabs, LiveKit, and GitHub Actions. SELECTED PRODUCT EXPERIENCE • GymChamp — Flutter/Firebase fitness platform with challenges, QR check-ins, real-time messaging, media sharing, trainer/member workflows, and 50K+ users. • TakeCare — Flutter healthtech product with care services, medicine delivery, pathology booking, patient workflows, operations dashboards, and 100K+ installs. • VoltRide — Smart e-bike Flutter app with Bluetooth LE lock/unlock, GPS tracking, battery monitoring, ride analytics, and production support. • 40+ products delivered across healthtech, fitness, EV mobility, SaaS, marketplaces, booking, fintech, and business apps. HOW I WORK I start with the user journey and business requirements, then choose practical architecture and integrations that keep the codebase clear and extensible. I can own the Flutter application end to end or work within an existing product team. My focus is straightforward communication, dependable implementation, and a release-ready result. Send me your app idea, Figma file, requirements, or existing Flutter codebase. I’ll review the scope, identify the key risks, and suggest a practical path to production.

Hi! I'm Md Umar Faruk, a Mobile App Developer specializing in Flutter app development, Android app solutions, and Google Play publishing support. I help developers and businesses launch and improve mobile apps—from development to release. My services include: ✅ Flutter App Development ✅ React Native App Development ✅ Android App Customization & Reskin ✅ 12 Testers Closed Testing ✅ Play Store Publishing Support ✅ Firebase Integration ✅ App Testing & Optimization ✅ UI Implementation from Figma Let’s turn your app idea into a published product.

⭐ 𝐇𝐞𝐥𝐩𝐢𝐧𝐠 𝐅𝐨𝐮𝐧𝐝𝐞𝐫𝐬 & 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬𝐞𝐬 𝐁𝐮𝐢𝐥𝐝 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩𝐬 𝐓𝐡𝐚𝐭 𝐀𝐫𝐞 𝐑𝐞𝐚𝐝𝐲 𝐟𝐨𝐫 𝐑𝐞𝐚𝐥 𝐆𝐫𝐨𝐰𝐭𝐡 𝖨𝖿 𝗒𝗈𝗎'𝗋𝖾 𝖻𝗎𝗂𝗅𝖽𝗂𝗇𝗀 𝖺𝗇 𝖬𝖵𝖯, 𝗌𝖼𝖺𝗅𝗂𝗇𝗀 𝖺𝗇 𝖾𝗑𝗂𝗌𝗍𝗂𝗇𝗀 𝗉𝗋𝗈𝖽𝗎𝖼𝗍, 𝗈𝗋 𝗂𝗆𝗉𝗋𝗈𝗏𝗂𝗇𝗀 𝖺𝗇 𝖺𝗉𝗉 𝗍𝗁𝖺𝗍 𝗇𝗈 𝗅𝗈𝗇𝗀𝖾𝗋 𝗆𝖾𝖾𝗍𝗌 𝗒𝗈𝗎𝗋 𝖻𝗎𝗌𝗂𝗇𝖾𝗌𝗌 𝗀𝗈𝖺𝗅𝗌, 𝖨 𝖼𝖺𝗇 𝗁𝖾𝗅𝗉 𝗒𝗈𝗎 𝗍𝗎𝗋𝗇 𝗍𝗁𝖺𝗍 𝗏𝗂𝗌𝗂𝗈𝗇 𝗂𝗇𝗍𝗈 𝖺 𝖿𝖺𝗌𝗍, 𝗋𝖾𝗅𝗂𝖺𝖻𝗅𝖾, 𝖺𝗇𝖽 𝗉𝗋𝗈𝖽𝗎𝖼𝗍𝗂𝗈𝗇-𝗋𝖾𝖺𝖽𝗒 𝗆𝗈𝖻𝗂𝗅𝖾 𝗌𝗈𝗅𝗎𝗍𝗂𝗈𝗇. 👋 Hi, I’m Rabbi, a Senior Mobile App Developer with 5+ years of experience building scalable applications for startups, growing businesses, and long-term digital products. I focus on mobile apps that are clean, user-friendly, technically strong, and built to support real business growth. 🚀 𝐖𝐇𝐀𝐓 𝐈 𝐂𝐀𝐍 𝐁𝐔𝐈𝐋𝐃 𝐅𝐎𝐑 𝐘𝐎𝐔: → Mobile App Development for iOS, Android, and cross-platform products → Flutter app development for fast and scalable delivery → React Native and Swift based mobile solutions → Backend systems with Node.js, Firebase, and Python → Secure API integration, payment gateways, maps, notifications, and third-party services → AI-powered features, including Chatbot Development, OpenAI, Gemini, and smart workflow automation → App improvements, rebuilds, feature expansion, and launch support 💻 𝐌𝐘 𝐂𝐎𝐑𝐄 𝐓𝐄𝐂𝐇 𝐒𝐓𝐀𝐂𝐊: 𝐌𝐨𝐛𝐢𝐥𝐞: Flutter, React Native, Swift, Android Studio 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Node.js, Express.js, Laravel, Python 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞: MongoDB, PostgreSQL, MySQL, Firebase 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: Stripe, PayPal, OpenAI, Google Maps, shipping APIs 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭: AWS, Docker, VPS, GitHub 📈 𝐀𝐏𝐏𝐒 𝐈 𝐂𝐎𝐌𝐌𝐎𝐍𝐋𝐘 𝐁𝐔𝐈𝐋𝐃: 🏦 Fintech 🏥 Healthcare 🛒 E-commerce 🏘️ Real Estate 🎓 Education ✈️ Travel 🍕 Food Delivery 📱 Social Apps ⚡ Fitness Platforms ⚙️ SaaS Products 📦 Logistics Systems 🤖 AI-enabled mobile solutions 🌟 𝐖𝐇𝐀𝐓 𝐘𝐎𝐔 𝐂𝐀𝐍 𝐄𝐗𝐏𝐄𝐂𝐓 𝐖𝐎𝐑𝐊𝐈𝐍𝐆 𝐖𝐈𝐓𝐇 𝐌𝐄: ✔️ Clear communication and structured development process ✔️ Clean, scalable code built for long-term growth ✔️ Strong focus on performance, usability, and stability ✔️ Honest technical guidance based on your product goals ✔️ End-to-end support from planning to launch 𝖨 𝖺𝗉𝗉𝗋𝗈𝖺𝖼𝗁 𝖾𝗏𝖾𝗋𝗒 𝗉𝗋𝗈𝗃𝖾𝖼𝗍 𝗐𝗂𝗍𝗁 𝗉𝗋𝗈𝖽𝗎𝖼𝗍 𝗍𝗁𝗂𝗇𝗄𝗂𝗇𝗀, 𝗍𝖾𝖼𝗁𝗇𝗂𝖼𝖺𝗅 𝗉𝗋𝖾𝖼𝗂𝗌𝗂𝗈𝗇, 𝖺𝗇𝖽 𝖺 𝖻𝗎𝗌𝗂𝗇𝖾𝗌𝗌-𝖿𝗂𝗋𝗌𝗍 𝗆𝗂𝗇𝖽𝗌𝖾𝗍. 𝖳𝗁𝖾 𝗀𝗈𝖺𝗅 𝗂𝗌 𝗌𝗂𝗆𝗉𝗅𝖾: 𝖻𝗎𝗂𝗅𝖽 𝖺𝗇 𝐚𝐩𝐩 𝐭𝐡𝐚𝐭 𝐰𝐨𝐫𝐤𝐬 𝐬𝐦𝐨𝐨𝐭𝐡𝐥𝐲, 𝐬𝐮𝐩𝐩𝐨𝐫𝐭𝐬 𝐠𝐫𝐨𝐰𝐭𝐡, 𝐚𝐧𝐝 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐬 𝐯𝐚𝐥𝐮𝐞 𝗍𝗈 𝗒𝗈𝗎𝗋 𝗎𝗌𝖾𝗋𝗌. 📩 𝐒𝐞𝐧𝐝 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 𝐨𝐫 𝐢𝐧𝐯𝐢𝐭𝐞 𝐦𝐞 𝐭𝐨 𝐲𝐨𝐮𝐫 𝐣𝐨𝐛 𝐢𝐟 𝐲𝐨𝐮 𝐧𝐞𝐞𝐝 𝐚 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐰𝐡𝐨 𝐜𝐚𝐧 𝐭𝐮𝐫𝐧 𝐲𝐨𝐮𝐫 𝐢𝐝𝐞𝐚 𝐢𝐧𝐭𝐨 𝐚 𝐩𝐨𝐥𝐢𝐬𝐡𝐞𝐝, 𝐡𝐢𝐠𝐡-𝐪𝐮𝐚𝐥𝐢𝐭𝐲 𝐦𝐨𝐛𝐢𝐥𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭.