🏆 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗘𝘅𝗽𝗲𝗿𝘁 | 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 | 𝟭𝟬𝟬+ 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 | 𝟴+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 | 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 𝐓𝐨𝐩 𝟑% 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤 I deliver mobile apps that ship on time, scale under real load, and don't need to be rewritten in 12 months. 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 & 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 𝗶𝗢𝗦 & 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 apps, from wireframe to App Store and Play Store launch, with backend, APIs, and cloud infrastructure included. ⚡ 𝗪𝗲'𝗿𝗲 𝗮 𝗴𝗿𝗲𝗮𝘁 𝗳𝗶𝘁 𝗶𝗳 𝘆𝗼𝘂'𝗿𝗲 𝘁𝗵𝗶𝗻𝗸𝗶𝗻𝗴: ● "I need a 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 or 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 developer who takes full ownership" ● "My last developer disappeared mid-build and I need someone reliable" ● "I want an 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽 but don't know where to start" ● "I need a production-ready 𝗠𝗩𝗣 in weeks, not months" ● "I want clean, documented code, not a mess I'll rebuild in a year" 📱 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 & 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 cross-platform apps (𝗶𝗢𝗦 + 𝗔𝗻𝗱𝗿𝗼𝗶𝗱). 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀 with OpenAI & ChatGPT integration. Ride sharing, fitness, healthcare, e-commerce, food delivery, dating, fintech, social networking, SaaS, and MVP apps shipped to real users. 🌐 𝗪𝗲𝗯 𝗔𝗽𝗽𝘀, 𝗔𝗜 𝗔𝗽𝗽𝘀 & 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗥𝗲𝗮𝗰𝘁.𝗷𝘀 & 𝗡𝗲𝘅𝘁.𝗷𝘀 web apps with 𝗦𝘂𝗽𝗮𝗯𝗮𝘀𝗲 and Firebase backends. 𝗔𝗜 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 powered by OpenAI, LangChain, and RAG pipelines. 𝗙𝘂𝗹𝗹 𝘀𝘁𝗮𝗰𝗸 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 covering frontend, backend, database, and deployment as one seamless delivery. Most of my mobile app clients also need a web dashboard or admin panel and I build that too, so nothing gets lost in handoffs. 🛠️ 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 ◉ 𝗠𝗼𝗯𝗶𝗹𝗲: React Native, Flutter, Dart, Swift, Kotlin, Expo ◉ 𝗔𝗜: OpenAI API, GPT-4, LangChain, RAG pipelines, AI agents ◉ 𝗪𝗲𝗯: React.js, Next.js, TypeScript, JavaScript, Tailwind CSS ◉ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Node.js, NestJS, Python, FastAPI, Firebase, REST, GraphQL ◉ 𝗖𝗹𝗼𝘂𝗱: AWS, Docker, CI/CD, Google Cloud, DigitalOcean ◉ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL, MongoDB, 𝗦𝘂𝗽𝗮𝗯𝗮𝘀𝗲, Firebase, MySQL, Redis ◉ 𝗣𝗮𝘆𝗺𝗲𝗻𝘁𝘀: Stripe, PayPal, In-App Purchases, RevenueCat 🔢 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗰𝗵𝗼𝗼𝘀𝗲 𝗺𝗲: ✅ 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 | sustained Top 3% globally ✅ 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 across 100+ contracts ✅ 𝗙𝘂𝗹𝗹 𝗼𝘄𝗻𝗲𝗿𝘀𝗵𝗶𝗽 | mobile frontend, backend, cloud, and deployment together ✅ 𝟬 𝘁𝗼 𝟰 𝗵𝗼𝘂𝗿 𝗿𝗲𝘀𝗽𝗼𝗻𝘀𝗲 𝘁𝗶𝗺𝗲 | you'll never be left waiting 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀: Ride Sharing · Fitness & Health · Healthcare · AI Coaching · Food Delivery · E-commerce · Fintech · Social Networking · SaaS · Real Estate · EdTech · Enterprise B2B · Startup MVPs 📩 𝗦𝗲𝗻𝗱 𝗺𝗲 "𝗔𝗣𝗣 𝗔𝗨𝗗𝗜𝗧" — 𝗜'𝗹𝗹 𝗽𝗲𝗿𝘀𝗼𝗻𝗮𝗹𝗹𝘆 𝗿𝗲𝘃𝗶𝗲𝘄 𝘆𝗼𝘂𝗿 𝗮𝗽𝗽 𝗶𝗱𝗲𝗮, 𝗲𝘅𝗶𝘀𝘁𝗶𝗻𝗴 𝗰𝗼𝗱𝗲𝗯𝗮𝘀𝗲, 𝗼𝗿 𝗙𝗶𝗴𝗺𝗮 𝗽𝗿𝗼𝘁𝗼𝘁𝘆𝗽𝗲 𝗮𝗻𝗱 𝘁𝗲𝗹𝗹 𝘆𝗼𝘂 𝗲𝘅𝗮𝗰𝘁𝗹𝘆 𝘄𝗵𝗮𝘁 𝘁𝗼 𝗯𝘂𝗶𝗹𝗱 𝗳𝗶𝗿𝘀𝘁, 𝘄𝗵𝗮𝘁 𝘁𝗼 𝗮𝘃𝗼𝗶𝗱, 𝗮𝗻𝗱 𝗵𝗼𝘄 𝘁𝗼 𝘀𝗰𝗮𝗹𝗲 𝗶𝘁 — 𝗳𝗼𝗿 𝗳𝗿𝗲𝗲. 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Mobile App Development · Mobile App Developer · React Native Developer · Flutter Developer · iOS App Development · Android App Development · Cross-Platform App Development · AI Mobile App Developer · AI App Development · Full Stack Developer · Web App Development · Next.js Developer · React.js Developer · Supabase Developer · MVP Development · Flutter App Developer · Firebase Developer · Custom Mobile App Development · AI-Powered App Development · ChatGPT Mobile Integration · OpenAI API Mobile App · Mobile App Development for Startups · Mobile App Development for Enterprises · App Development · Mobile App Design · API Integration · Senior Mobile App Developer · Ride Sharing App Development · Fitness App Development · Healthcare App Development · Food Delivery App Development · Dating App Development · E-commerce Mobile App · Fintech Mobile App · AI Mobile App Development

🚀 9+ Years of React Native Expertise | 400+ Hours Logged | 15+ Clients Worldwide I turn complex ideas into smooth, high-performance mobile apps. Whether you need a tricky bug fixed, a new feature built, or a full app developed from scratch, I deliver clean, scalable code on time and on point. Why Clients Choose Me ✅ Fast, Clear Communication ✅ Top Rated Freelancer on Upwork ✅ 15+ Successful Jobs & 400+ Hours ✅ Problem Solver First My Specialized Toolkit 📱 Core: React Native (CLI & Expo), TypeScript 🔥 Backend & Data: Firebase (Realtime DB, Auth, Push Notifications), Supabase 🧠 State Management: Redux, Zustand, Context API 💳 Integrations: Midtrans, RevenueCat (Payments), Mapbox, Google Maps 🛡️ Stability: Sentry & Bugsnag for real-time crash and error monitoring Apps I’ve Successfully Delivered 🛒 Marketplace & E‑commerce – Scalable shopping experiences with seamless checkout 📚 Learning Management (LMS) – Interactive educational platforms for students and instructors 🔐 Security – Multi‑Factor Authentication (MFA) and secure access flows 📍 Geo‑Location – Map‑based apps with real‑time tracking and smart routing 📊 Data‑Driven – Complex survey, feedback, and analytics tools Got a question or an idea? 👋 DM me! Let’s discuss your project and build something great together.

● 𝗦𝗺𝗮𝗿𝘁𝗲𝗿 𝗔𝗽𝗽𝘀 𝘄𝗶𝘁𝗵 𝗔𝗜, 𝗠𝗟 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 ● 𝗔𝗜-𝗘𝗻𝗵𝗮𝗻𝗰𝗲𝗱 𝗶𝗢𝗦 & 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲𝘀 ●𝗧𝗿𝗮𝗻𝘀𝗳𝗼𝗿𝗺𝗶𝗻𝗴 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽𝘀 𝘄𝗶𝘁𝗵 𝗔𝗜, 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄𝘀 ⭐ Top Rated Plus – Top 1% on Upwork 🕒 9500+ hours on Upwork • $200K+ earnings ✅ 11+ years in mobile development (Xamarin/MAUI, Flutter, Android, iOS, Node.js) ✅ Delivered 35+ full-product apps from MVP to launch & scale ✅ Led cross-functional teams since 2016; worked on Fortune 30+ scale projects Hi, Waqar here! your go-to Senior Flutter & Dart developer. With over 11 years of experience building mobile apps, I specialise in delivering scalable, high-performance cross-platform solutions that drive business growth. 🚀 𝐃𝐨𝐦𝐚𝐢𝐧-𝐒𝐩𝐞𝐜𝐢𝐟𝐢𝐜 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 Over the years, I have build and delivered mobile applications across key industries including: Fintech & Banking: Building secure digital wallet & neobank solutions, real-time transaction dashboards, payment integrations (Stripe/PayPal/Braintree), and compliance-aware systems. E-commerce: Developing multi-tenant storefront apps, marketplace platforms, on-demand services (food delivery, grocery), integrating cart, inventory and payment flows. Health & Wellness / Healthcare: Apps for patient management, medicine ordering, health tracking, real-time data visualisation and tele-medicine interfaces. SaaS & Enterprise Mobility: Internal tools, field workforce apps, B2B dashboards, mobile extensions of SaaS products with complex workflows and offline-capable features. 🛠 Tech Stack Highlights Languages & Frameworks: Flutter, Dart, Xamarin (MAUI), Kotlin, Swift, Node.js Hosting & Databases: AWS, Azure, GCP, Firestore, Supabase, PostgreSQL, MongoDB, MySQL Third-party Integrations: Stripe, PayPal, MapKit, Mapbox, Twilio, Agora, OpenAI API DevOps & Tools: Git, CI/CD pipelines, performance monitoring (Crashlytics, Mixpanel), scalable architecture Industries served: Fintech, e-commerce/retail, health/wellness, SaaS, enterprise mobility ✅ Why choose me Proven track record: Delivered apps used by thousands (to millions) of users, with excellent client feedback. Outcome-driven: I am not just a coder. I help you achieve business results, faster time-to-market, and long-term maintainability. Agile & collaborative: Clear communication, regular updates, flexible scheduling, support until you’re 100% satisfied. 𝐋𝐨𝐧𝐠-𝐭𝐞𝐫𝐦 𝐩𝐚𝐫𝐭𝐧𝐞𝐫: Many clients stay with me for updates, maintenance and new features. Let’s build something that grows. 💭 Let’s have a quick call to discuss your app idea, timeline and budget. I am ready to jump in immediately and build something you’re proud of. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬: Flutter Developer | Dart & FlutterFlow Specialist | React Native| Cross-Platform Mobile Engineer | iOS (Swift) Developer | Android (Kotlin/Java) Developer | Xamarin & MAUI Expert | Mobile App UI/UX Designer | Mobile Backend (Node.js) Engineer | Firebase & REST API Integration | Payment & Map SDK Integration | Cloud & DevOps for Mobile Apps | Mobile Performance Optimization | Mobile App Maintenance & Support

𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿, 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 𝗘𝘅𝗽𝗼 expert, focusing on 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲, 𝗰𝗹𝗲𝗮𝗻 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲, and apps that stay stable long after launch. 𝟭𝟬𝟬+ 𝗮𝗽𝗽𝘀 𝘀𝗵𝗶𝗽𝗽𝗲𝗱 to the 𝗔𝗽𝗽 𝗦𝘁𝗼𝗿𝗲 and 𝗚𝗼𝗼𝗴𝗹𝗲 𝗣𝗹𝗮𝘆, from brand-new builds to products that needed to scale without breaking. Most founders reach me at the same moment: the app was built fast, and now it's showing the cracks. Features that passed testing behave differently in production. Performance drops on Android and iOS. A launch deadline has quietly turned into a long maintenance problem. I step in, understand the product, the users, and the real state of the code, then set the right direction, whether that's a fresh React Native build or an existing codebase that needs a steadier hand. 𝗥𝗲𝗮𝗹 𝘄𝗼𝗿𝗸. 𝗥𝗲𝗮𝗹 𝗿𝗲𝘀𝘂𝗹𝘁𝘀. → A client had API calls running sequentially, so every screen waited on the previous request. I refactored the data layer and cut load time by around 90%. The only thing users noticed was that the app finally felt fast. → Another app had Supabase RLS rules open enough that any logged-in user could read any row in the database. I caught and fixed it before launch, well before it could become a breach. That's the real work: not just shipping features, but reading what's already there, finding what's quietly broken, and fixing it before it costs real money. 𝗧𝗵𝗲 𝗻𝘂𝗺𝗯𝗲𝗿𝘀 → 100% Job Success Score across 23 contracts → 20 five-star reviews → 100+ apps shipped to App Store and Google Play → 200+ mobile developers trained → Clients who come back for the next project 𝗪𝗵𝗲𝗿𝗲 𝗜 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘀𝗲 (𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 & 𝗘𝘅𝗽𝗼) → React Native development across Expo Managed, Bare, and CLI, production grade rather than prototype grade → Performance audits: startup time, render performance, memory leaks, Android lag, crash reduction → Code review and architecture review for apps that have outgrown their original structure → Stabilising fast-built or AI-assisted MVPs so they're ready to scale → In-app purchases, subscriptions, RevenueCat, and Stripe, including the iOS and Android edge cases → Supabase and Firebase auth, RLS, real-time, storage, and staging/production separation → Expo SDK migrations, New Architecture, Android API 35, and deprecated library replacement → CI/CD, EAS Build, Fastlane, GitHub Actions, and App Store and Play Store releases → Real-time features, WebSockets, push notifications, deep linking, and offline-first architecture → AI features with the OpenAI and Claude API, live in production today I also work in Flutter when a project calls for it, but React Native and Expo are my core. 𝗪𝗵𝗮𝘁 𝗜 𝗱𝗼𝗻'𝘁 𝗱𝗼 I don't quote blind. Before any commitment, I'll get on a free 15 to 20 minute call, look at where your app actually stands, and give you an honest path forward, risks included. If it's not the right fit, I'll tell you that too. 𝗧𝗲𝗰𝗵 𝗜 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 React Native · Expo · TypeScript · JavaScript · Redux · Zustand · React Navigation · Flutter · Dart · Bloc · Riverpod · Supabase · Firebase · Node.js · REST · GraphQL · WebSockets · RevenueCat · Stripe · Mapbox · OpenAI API · Claude API · EAS Build · Fastlane · GitHub Actions Tell me what you're building, or what's breaking, and I'll tell you what I actually see.

Helping startups and growing companies launch polished, scalable apps - fast. ⚡️𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐭𝐡𝐚𝐭 𝐈 𝐨𝐟𝐟𝐞𝐫 𝗙𝘂𝗹𝗹-𝗖𝘆𝗰𝗹𝗲 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: From first prototype to post-launch updates - I’ll handle the entire lifecycle of your React Native, React, or Next.js project, making sure the product stays stable, secure, and user-friendly across platforms. 𝐌𝐕𝐏 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Need to ship fast but solid? I’ve launched multiple MVPs from scratch that helped startups validate their idea, pitch investors, and scale. Clean architecture, quick iterations, strong foundations. 𝗠𝗼𝗯𝗶𝗹𝗲 & 𝗪𝗲𝗯 𝗨𝗜 𝗜𝗺𝗽𝗹𝗲𝗺𝗲𝗻𝘁𝗮𝘁𝗶𝗼𝗻: Pixel-perfect Figma-to-code. I build sharp, responsive UIs that feel great to use with smooth animations and clean interactions. Always mobile-first. 𝗪𝗲𝗯𝘀𝗶𝘁𝗲𝘀 & 𝗟𝗮𝗻𝗱𝗶𝗻𝗴 𝗣𝗮𝗴𝗲𝘀: Need a fast, modern site that converts? I build high-converting landing pages, marketing websites, Shopify storefronts, and custom company pages using React, Next.js, Tailwind, or even simple static stacks SEO-optimized, blazing-fast, and easy to manage. 🌟 𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐭𝐨𝐫𝐢𝐞𝐬: Denys is a great contractor - very capable and eager to get the job done properly. He communicates well and is knowledgeable - ⭐⭐⭐⭐⭐ I can honestly recommend Denys as developer and the most responsible, proactive freelancer I’ve ever met. Quick answers and responses, step by step demo calls, fair price, strong skillset, fluent English - ⭐⭐⭐⭐⭐ 𝗪𝗵𝘆 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗺𝗲? I own projects - not just code tasks. I think like a founder - not just a dev. I deliver fast, communicate clearly, and stick to timelines. I’m in this for the long term, not one-off jobs. 𝐌𝐲 𝐭𝐨𝐩 𝐩𝐫𝐢𝐨𝐫𝐢𝐭𝐲 is ensuring that every client is completely satisfied with our work. Mobile app development | iOS app development | Android app development | React Native app development | Flutter app development | Cross-platform app development | Hybrid app development | Mobile app design | App performance optimization | Feature integration | UI/UX for mobile apps | App scalability | Full-cycle mobile app development and marketing | Mobile app development and launch strategy | End-to-end mobile app development | Mobile app design | App development and user acquisition | App performance | Cross-platform app development | Mobile app development | Custom mobile app development | Mobile app development | Mobile app UX/UI design | App development | Firebase integration | AWS mobile services | Push notifications | API integration | Mobile backend integration Updated January 2026

🚀 Thank you for taking an interest in my profile! 🙌 I'm not just your typical developer; I'm a dynamic force in the world of software engineering, specializing in full-stack development from the web to cutting-edge hybrid mobile applications. With over 6 years of immersive experience, I've honed my craft in top-tier companies across diverse sectors, including healthcare and fintech. 💼 Here's a glimpse into my versatile toolkit, carefully curated to tackle any challenge with finesse: ✔️ React 🎨 ✔️ React Native (iOS, Android) 📱 ✔️ Flutter (iOS, Android) 🦋 ✔️ Angular 🅰️ ✔️ Node.js 🚀 ✔️ Nest.js 🐦 ✔️ PostgreSQL (TypeORM) 🐘 ✔️ MongoDB 🍃 ✔️ TypeScript 📘 ✔️ NativeScript (iOS, Android) 📲 ✔️ Electron.js ⚡ ✔️ Next.js ➡️ But that's not all! 🌟 I'm also well-versed in: ✔️ Crypto Coin development 💰 ✔️ Telegram bot development with AI 🤖 ✔️ Automation 🤖 Beyond just my technical prowess, I bring a collaborative and innovative spirit to every project. 🤝 I'm always eager to discuss requirements, brainstorm creative solutions, and communicate effectively with you and your team to deliver exceptional results. 🌟 I'm genuinely excited about the possibility of collaborating with you on exciting new ventures! 🔥 Don't hesitate to reach out with any questions or opportunities for collaboration. Let's embark on this journey together and create something extraordinary! 🚀✨

𝐅𝐨𝐫 𝐨𝐯𝐞𝐫 𝟔 𝐲𝐞𝐚𝐫𝐬, 𝐈’𝐯𝐞 𝐡𝐞𝐥𝐩𝐞𝐝 𝐚𝐠𝐞𝐧𝐜𝐢𝐞𝐬 𝐚𝐧𝐝 𝐬𝐭𝐚𝐫𝐭𝐮𝐩 𝐟𝐨𝐮𝐧𝐝𝐞𝐫𝐬 𝐭𝐮𝐫𝐧 𝐭𝐡𝐞𝐢𝐫/𝐜𝐥𝐢𝐞𝐧𝐭𝐬' 𝐢𝐝𝐞𝐚𝐬 𝐢𝐧𝐭𝐨 𝐡𝐢𝐠𝐡-𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐢𝐧𝐠, 𝐮𝐬𝐞𝐫-𝐟𝐫𝐢𝐞𝐧𝐝𝐥𝐲 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐮𝐬𝐢𝐧𝐠 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞. I specialize in building clean, intuitive interfaces that not only look great but also drive real engagement and retention. From seamless UI to robust backend integrations, my focus is always on performance, reliability, and user experience. Core Skills: Cross-Platform Mobile App Development (React Native) Flutter. UI/UX Design & Animation App Testing, Debugging, and Optimization Ongoing App Maintenance and Support Services I Offer: REST API & GraphQL Integration Push Notifications & Live Audio/Video Streaming WebRTC-based Communication Payment Gateway Integration Backend with Node.js, Express & MongoDB Frontend with React.js Google Maps Integration Full Deployment to App Store & Play Store Whether you're starting from scratch or improving an existing app, I’m ready to help. Feel free to reach out and explore the real apps I’ve built, published, and scaled. I’m currently offering a discount for first-time clients. Let’s bring your idea to life.

𝐌𝐨𝐬𝐭 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬𝐞𝐬 𝐝𝐨𝐧'𝐭 𝐧𝐞𝐞𝐝 𝐚𝐧 𝐚𝐩𝐩. 𝐓𝐡𝐞𝐲 𝐧𝐞𝐞𝐝 𝐦𝐨𝐫𝐞 𝐜𝐮𝐬𝐭𝐨𝐦𝐞𝐫𝐬 𝐭𝐨 𝐜𝐨𝐦𝐞 𝐛𝐚𝐜𝐤 𝐰𝐢𝐭𝐡𝐨𝐮𝐭 𝐜𝐡𝐚𝐬𝐢𝐧𝐠 𝐭𝐡𝐞𝐦. 𝐀𝐧 𝐚𝐩𝐩 𝐢𝐬 𝐣𝐮𝐬𝐭 𝐭𝐡𝐞 𝐭𝐨𝐨𝐥. 𝐈𝐟 𝐲𝐨𝐮 𝐰𝐚𝐧𝐭 𝐭𝐡𝐚𝐭 𝐟𝐢𝐱𝐞𝐝, 𝐥𝐞𝐭'𝐬 𝐭𝐚𝐥𝐤. My name is 𝐇𝐚𝐬𝐬𝐚𝐧, and I'm 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐀𝐈 𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with 𝟏𝟎+ years of experience building scalable AI powered applications, cross platform mobile apps, and backend systems for startups and enterprises. 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: Mobile Development: React Native, Flutter, Android, iOS, cross platform architecture, native integrations Backend & APIs: Python (FastAPI, Django, Flask), REST APIs, GraphQL, async programming, microservices Databases: PostgreSQL, MySQL, MongoDB, Redis (optimized schemas, scalable architecture) AI & Automation: LLMs, AI Agents, Voice AI, RAG, Prompt Engineering, AI workflows, intelligent automation Cloud & DevOps: AWS (Lambda, ECS, RDS, S3), GCP, Azure, Docker, Kubernetes, CI/CD automation 𝒀𝒐𝒖 𝒏𝒆𝒆𝒅 𝒂𝒑𝒑𝒍𝒊𝒄𝒂𝒕𝒊𝒐𝒏𝒔 𝒕𝒉𝒂𝒕 𝒂𝒓𝒆 𝒏𝒐𝒕 𝒋𝒖𝒔𝒕 𝒇𝒖𝒏𝒄𝒕𝒊𝒐𝒏𝒂𝒍 𝒃𝒖𝒕 𝒇𝒂𝒔𝒕, 𝒔𝒄𝒂𝒍𝒂𝒃𝒍𝒆, 𝒊𝒏𝒕𝒖𝒊𝒕𝒊𝒗𝒆, 𝒂𝒏𝒅 𝒑𝒓𝒐𝒅𝒖𝒄𝒕𝒊𝒐𝒏 𝒓𝒆𝒂𝒅𝒚 𝒇𝒓𝒐𝒎 𝒅𝒂𝒚 𝒐𝒏𝒆. 𝑺𝒐𝒍𝒖𝒕𝒊𝒐𝒏𝒔 𝒕𝒉𝒂𝒕 𝒈𝒓𝒐𝒘 𝒘𝒊𝒕𝒉 𝒚𝒐𝒖𝒓 𝒃𝒖𝒔𝒊𝒏𝒆𝒔𝒔 𝒊𝒏𝒔𝒕𝒆𝒂𝒅 𝒐𝒇 𝒓𝒆𝒒𝒖𝒊𝒓𝒊𝒏𝒈 𝒄𝒐𝒔𝒕𝒍𝒚 𝒓𝒆𝒃𝒖𝒊𝒍𝒅𝒔 𝒂𝒔 𝒚𝒐𝒖𝒓 𝒑𝒓𝒐𝒅𝒖𝒄𝒕 𝒆𝒗𝒐𝒍𝒗𝒆𝒔. 𝗔𝗜 𝗧𝗼𝗼𝗹𝘀 & 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: OpenAI API, GPT-4, LangChain, LangGraph, CrewAI, AutoGen, LlamaIndex, Hugging Face, Pinecone, Weaviate 𝗔𝗜 𝗖𝗮𝗽𝗮𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀: Large Language Models (LLMs), AI Agents, Voice Agents, Retrieval-Augmented Generation (RAG), Prompt Engineering, AI Chatbots, Computer Vision, Speech-to-Text, Text-to-Speech, Machine Learning, Generative AI 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝘁𝗶𝗲𝘀: Cross-platform mobile apps, AI-powered mobile applications, real-time communication, payment integrations, authentication, push notifications, location services, offline-first apps 𝗖𝗼𝗿𝗲 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝘁𝗶𝗲𝘀: AI-powered mobile applications, AI agents & automation, intelligent chatbots, SaaS applications, healthcare solutions, enterprise software, cloud-native applications 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿: ✔ AI-powered mobile applications ✔ Cross-platform apps with Flutter & React Native ✔ Scalable Python backend APIs ✔ AI agents, chatbots & workflow automation ✔ Cloud-native architectures (AWS / GCP / Azure) ✔ Secure, tested, production-ready applications ✔ MVP to enterprise-scale product development 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: AI Developer | Python Developer | Mobile App Developer | React Native | Flutter | FastAPI | Django | AI Agents | Voice AI | LLMs | OpenAI | LangChain | LangGraph | RAG | Generative AI | Chatbot Development | API Development | AWS | GCP | Azure | Docker | Kubernetes

Full-Stack & Mobile Engineer (React, Next.js, Node.js, React Native, n8n, Supabase) ▪ 10 years I help startups and growing companies build high-quality web apps, mobile apps, and backend systems using React, Next.js, Node.js, React Native, TypeScript, Supabase, and PostgreSQL. I turn messy codebases and unfinished features into clean, fast, stable applications — web, mobile, and backend. I build MVPs in weeks, automate workflows with n8n, and ship production-ready releases at a predictable pace. My work has supported teams at Google, MIT, FedEx, and IPG Photonics (LightWeld used in SpaceX supply chain). Why me: 🏅 Top Rated Plus ▪ 100% Job Success ▪ $700k+ earned 10 years of hands-on full-stack, mobile, and backend development Shipped 70+ products across FinTech, HealthTech, SaaS, and marketplaces Built systems used inside Google, MIT, and FedEx Developed industrial software for IPG/LightWeld powering SpaceX-grade manufacturing Led engineering for a fintech mobile app with 250k+ monthly active users YC startup I worked with raised $1.6M after MVP What I deliver: • Full-stack development: React, Next.js, TypeScript, Node.js • Mobile app development: React Native for iOS & Android • Backend development: Supabase, PostgreSQL, Firebase, custom APIs • API integrations: Stripe, HubSpot, Slack, REST, GraphQL • Automation: n8n workflows (onboarding, CRM sync, internal tools) • MVP development in 4–8 weeks • Codebase rescue, refactoring, performance improvements • Long-term weekly development & product support Toolbox: React ▪ Next.js ▪ React Native ▪ Node.js ▪ TypeScript ▪ Supabase ▪ PostgreSQL Firebase ▪ Redis ▪ Swift ▪ Kotlin ▪ Docker ▪ AWS ▪ Vercel ▪ CI/CD ▪ n8n Automations You get someone who can architect, build, integrate, and actually finish things — not just write fragments of code. If you need a reliable full-stack or mobile engineer who delivers clean engineering and fast execution — let’s talk.

Hello. I'm an AI engineer, full-stack iOS/Android/PHP/JavaScript/TypeScript/React/React Native developer and problem solver with more than 17 years of experience iOS/Android/PHP/JavaScript/TypeScript/React/React Native developer and problem solver with more than 17 years of experience. Specializing in MERN and LAMP stacks, artificial intelligence (AI). I embrace modern AI-powered development workflows using tools like 🤖 Claude Code, 🧠 Cursor and 🏄 Windsurf IDEs. What I do: 📱 Mobile apps, 🖥️ Desktop apps, 🌐 Websites, ⚙️ Web services, 👨🏻‍💻 Admin Backends, 🧩 API for them, 🤖 ChatGPT integrations. I embrace modern AI-powered development workflows using tools like 🧠 Cursor IDE and 🤖 Claude Code. Kinds of software I've created: 🛍️ Shopping & online stores, 🏃 Sports, 🎮 Games, 🧘 Medicine & well-being, ✈️ Travel, 💰 Bank systems, 📣 Ad networks, 🛡️ Insurance, 🛬 Landing pages. I have strong skills in the following programming languages: 📜 TypeScript, ☕ JavaScript, 🦅 Swift, 🎯 Objective-C, 🐘 PHP, 🐱 Kotlin, ☕ Java. Frameworks and technologies: 🦕 Deno & Node, ⚛️ React, ⚛️ React Native, 🤖 ChatGPT API, 🔮 Anthropic AI API, 🐻 Zustand, ⚛️ Electron, 🆁 Redux, 🆁 Redux Toolkit, 🐆 Nest js, 🅽 Next js, 🆅 Vue, 🐆 Fastify, 🥤 Fresh, 🅰 Apollo GraphQL Client and Server, 🔌 Relay, 🅼 MobX, 🌳 Koa, 🅴 Express js, 📈 GraphQL, 😎 Swagger, 💨 Tailwind, 🦅 SwiftUI, 🎥 Lottie Files, 🥤 Cocoa Touch, 🥥 Cocos2D, 🅻 Laravel, 🎵 Symfony, 🆈 YII and YII2, 🔥 CodeIgnitor, 🆉 Zend Framework, 📍 CoreLocation, 🎥 CoreAnimation, 🏠 Apple HomeKit, ❤️ Apple HealthKit, 💰 Superwall. Databases: 🍃 Mongo, 🐬 MySQL, 🪶 SQLite, 🍉 Watermelon DB, ⚡️ Supabase, 🔥 Firebase, 🐘 Postgres, 📄 TypeORM, ➡️ Doctrine, ⚪ DynamoDB/PartiQL, 🔴 Oracle, 🅲 CoreData, 🟣 Realm. Cloud Computing: 🐳 Docker, ☸️ Kubernetes, ☸️ Google Kubernetes Engine, 🌊 DigitalOcean Cloud, 🅷 Heroku, 🆁 Render, ☀️ Netlify, 🅰 Microsoft Azure, 🔺 AWS Lambda. I have developed over 20 iOS apps, 15 React Native apps, several Android apps, APIs for some of them, over 20 websites. I'm proficient in problem-solving and have solid track record of success in solving complex problems for teams that have struggled to do so on their own. I like to explore modern technologies, build amazing user interfaces, develop software of any complexity. I always strive to create apps and sites according to the best practices, thoroughly test them and provide the best user experience. It's important to me to write clean and readable source code which is easy to understand and maintain for any other developer.