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Michael P.
$35/hr
100% Job Success
$100K+ earned
Available now
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I don't just write React Native code. I ship apps people actually use. 1M+ downloads. 30+ countries. 200+ projects. 100% Job Success. Most clients come to me when their React Native app is stuck, broken, or half-built and nobody else could finish it. Or when they need a mobile app developer who handles everything from first screen to App Store and Google Play launch. Some come with an MVP idea and need a react native developer who moves fast without cutting corners. Others come because their react native mobile app has performance issues or complex integrations nobody else could solve. I've been doing this for 8+ years, delivered 200+ projects, and the apps I've built as a mobile app developer now serve 590K+ users across 30+ countries. WHAT I BUILD As a react native developer and react native engineer I cover the full mobile lifecycle across 200+ shipped products: ✦ React Native mobile apps with Expo and CLI for iOS and Android ✦ React Native Expo MVPs shipped from first screen to App Store and Google Play ✦ React Native Firebase integrations — auth, Firestore, real-time sync, push notifications ✦ React Native Supabase backends and React Native Node.js APIs that scale with the product ✦ AI mobile app development with OpenAI API, real-time features, and on-device intelligence ✦ In-app purchases, RevenueCat subscriptions, AdMob, deep linking, and push notifications ✦ Native Swift and Kotlin modules and android kotlin integrations when cross-platform isn't enough ✦ App Store and Google Play submissions including rejections, TestFlight, and review handling I work as a react native full stack developer so clients don't need to hire two separate people. Firebase, Supabase, and Node.js on the backend — one team, one codebase, one point of contact. INDUSTRIES I've shipped products as a mobile app developer and mobile application developer across multiple verticals. In Fintech and Crypto I built a trading platform with 590K+ registered users and 2M+ monthly visitors. In Healthcare and Wellness I delivered apps with 100K+ downloads, a 4.9 App Store rating, and users across 30+ countries. In EdTech I shipped language learning and trivia apps that together reached 1M+ downloads. I've also delivered E-commerce, SaaS MVPs, Hospitality, and On-demand platforms: ✦ Fintech and Crypto — 590K+ users, 2M+ monthly visitors ✦ Healthcare and Wellness — 100K+ downloads, 4.9 App Store rating, 30+ countries ✦ EdTech — 1M+ downloads across 30+ countries ✦ E-commerce and Marketplace ✦ SaaS and Startup MVPs ✦ Hospitality and On-demand Services WEB AND FULL STACK On the web side I work as a react developer and front end developer building platforms with React, Next.js, and Node.js. I've delivered react nextjs products, full stack developer react node systems, and full stack developer ai projects with LLM integrations and OpenAI workflows. I've worked alongside Vue and Angular codebases and helped clients migrate from WordPress to modern React stacks. On larger projects I work as a web developer delivering both mobile and web from the same team. Clients who need an app developer ios android with full backend ownership also work with me on ios android developer projects. I collaborate with flutter developer and android developer teams when needed, and I structure codebases that a python developer or backend node.js team can extend later. WHY CLIENTS WORK WITH ME ✦ 8+ years as a react native developer and mobile app developer — 200+ projects, 1M+ downloads, 30+ countries ✦ React native full stack developer — mobile frontend and backend in one engagement ✦ Fast at complex bugs, App Store rejections, and performance issues others couldn't fix ✦ Clear written communication and honest timelines, no surprises ✦ Available after launch for support, new features, and scaling WHAT CLIENTS SAY "Michael is an outstanding react native developer — skilled, reliable, and delivers clean, efficient code." "Succeeded on complex React Native bugs where others failed." "Exceeded our expectations." If you're looking for an experienced react native developer and mobile app developer who gets things shipped — press Invite or send a message.
Michael P. has worked .
Puneet  S.
$15/hr
96% Job Success
$800+ earned
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𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐀𝐩𝐩 𝐋𝐚𝐮𝐧𝐜𝐡 & 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭 I help 𝐬𝐭𝐚𝐫𝐭𝐮𝐩𝐬 𝐚𝐧𝐝 𝐟𝐨𝐮𝐧𝐝𝐞𝐫𝐬 𝐟𝐢𝐧𝐢𝐬𝐡, 𝐩𝐨𝐥𝐢𝐬𝐡, 𝐚𝐧𝐝 𝐬𝐮𝐜𝐜𝐞𝐬𝐬𝐟𝐮𝐥𝐥𝐲 𝐥𝐚𝐮𝐧𝐜𝐡 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐚𝐩𝐩𝐬 for iOS and Android, Specialized in 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐂𝐋𝐈, 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭-𝐛𝐚𝐬𝐞𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐚𝐩𝐩𝐬, 𝐔𝐈 𝐫𝐞𝐟𝐢𝐧𝐞𝐦𝐞𝐧𝐭, 𝐟𝐞𝐚𝐭𝐮𝐫𝐞 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐢𝐨𝐧, 𝐚𝐧𝐝 𝐀𝐩𝐩 𝐒𝐭𝐨𝐫𝐞 𝐬𝐮𝐛𝐦𝐢𝐬𝐬𝐢𝐨𝐧 𝐢𝐧𝐜𝐥𝐮𝐝𝐢𝐧𝐠 𝐓𝐞𝐬𝐭𝐅𝐥𝐢𝐠𝐡𝐭 and release builds. If your app is 80–90% complete but not ready for launch, I step in to finalize, optimize, and ship it properly. Many React Native projects reach 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐢𝐨𝐧 𝐛𝐮𝐭 𝐬𝐭𝐫𝐮𝐠𝐠𝐥𝐞 𝐰𝐢𝐭𝐡 𝐭𝐡𝐞 𝐟𝐢𝐧𝐚𝐥 𝐬𝐭𝐚𝐠𝐞 𝐔𝐈 𝐩𝐨𝐥𝐢𝐬𝐡, 𝐞𝐝𝐠𝐞-𝐜𝐚𝐬𝐞 𝐛𝐮𝐠 𝐟𝐢𝐱𝐞𝐬 , onboarding flow improvements, performance optimization, release configuration, and store submission. That final 10–20% is where I specialize. 💼 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 React Native CLI (not Expo-only builds) React Native with TypeScript iOS & Android production development Pixel-perfect UI implementation from Figma UI polish & premium UX refinement Feature completion & code refactoring REST API integration (JWT, OAuth, Bearer authentication) React Navigation (Stack, Tabs, Deep Linking) Secure authentication & token handling Performance optimization & debugging TestFlight configuration & App Store submission Google Play release & deployment 📱 𝐢𝐎𝐒 𝐑𝐞𝐥𝐞𝐚𝐬𝐞 & 𝐀𝐩𝐩 𝐒𝐭𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 Hands-on experience with: Xcode release builds & archive configuration Provisioning profiles & signing certificates App Store Connect setup TestFlight beta distribution App Store review process & rejection resolution Production deployment workflow 🛠 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐭𝐚𝐜𝐤 React Native 0.7x / 0.8x TypeScript React Navigation Firebase Supabase / PostgreSQL Node.js / REST APIs Push Notifications CI/CD mobile pipelines 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮 𝐂𝐚𝐧 𝐄𝐱𝐩𝐞𝐜𝐭 Clean, maintainable production-ready code Clear communication & fast response Strong attention to performance & stability 𝐎𝐧-𝐭𝐢𝐦𝐞 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐲 Focus on real-world launch success I don’t just build mobile apps I help you ship stable, scalable React Native products ready for real users. If you need a React Native developer who understands launch, release builds, and production deployment let’s connect.
Puneet S. has worked .
CodeMantra Solutions
Associated with
CodeMantra Solutions
$100K+
earned
$15/hr
100% Job Success
$500+ earned
Available now
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I specialize in cross-platform mobile development using React Native (both Expo and Bare workflows) with over 5 years of hands-on experience. I write clean, maintainable JavaScript and TypeScript (ES6+) code and work with advanced state management tools like Redux, Redux-Saga, React Context API, and React Hooks to create scalable app architectures. I focus on clean, tested, and maintainable code that’s built to scale — creating user experiences that are not only beautiful and intuitive but also keep your users coming back. 𝗪𝗵𝗮𝘁 𝗜 𝗢𝗳𝗳𝗲𝗿: 5+ years of mobile development experience 20+ apps built and deployed Full-cycle development: from idea to launch Fast, friendly communication & regular progress updates Emphasis on UI/UX, performance, and long-term maintainability 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀 & 𝗦𝘁𝗮𝘁𝗲 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 JavaScript / TypeScript (ES6+) Redux, Redux-Saga, Redux-Thunk React Context API, React Hooks Flutter BLoC, Riverpod 𝗔𝗣𝗜 & 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 RESTful APIs & GraphQL (Apollo Client) Firebase (Auth, Firestore, Cloud Functions, Notifications) Supabase Node.js + Express PostgreSQL / MongoDB / NoSQL 𝗙𝗲𝗮𝘁𝘂𝗿𝗲𝘀 & 𝟯𝗿𝗱 𝗣𝗮𝗿𝘁𝘆 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 Google Maps SDK, Mapbox, OpenStreetMap Real-time chat, dashboards, analytics Multilingual Support (i18n) BLE (Bluetooth Low Energy) integration Stripe, RevenueCat, Superwall, Square Social Logins (Google, Apple, Facebook) OTA Updates with CodePush OpenAI API, Google ML Kit, Core ML 𝗠𝗼𝗻𝗶𝘁𝗼𝗿𝗶𝗻𝗴, 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 & 𝗗𝗲𝘃𝗢𝗽𝘀 Sentry, Crashlytics, MixPanel, Google Analytics Unit Testing & basic E2E Testing CI/CD pipelines for automated builds GitHub, GitLab, Bitbucket Daily builds & versioning (Expo EAS & Fastlane) 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗶𝘀 𝗞𝗲𝘆 I keep clients involved and informed with regular updates, early test builds, and quick responses. Whether you're starting a new project or improving an existing app, I’m here to make sure it gets done right. Let’s chat! Send me a message and we can discuss how to bring your app idea to life.
Syed Ahmed H. has worked .
Ahsan F.
$35/hr
100% Job Success
Available now
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React Native Developer specializing in AI-powered mobile apps for iOS & Android. I help startups and SaaS businesses ship production-ready apps faster — using React Native, Expo, Firebase, and AI-assisted workflows (Cursor, Claude, GPT-4). 📱 Live Apps I've Built & Maintained: — HelloBible: 4.7⭐ | 50K+ downloads | AI Bible companion — Evolve Training: 4.0⭐ | 10K+ downloads | AI fitness coaching — Enhanced Sports: 4.7⭐ | 5K+ downloads | Real-time sports platform Top Rated Plus | 100% Job Success | $100K+ Earned | 5+ Years Experience ───────────────────────────────── 🤖 AI-Powered Development ───────────────────────────────── ☑️ AI-assisted coding (Cursor, Claude, GPT-4, Gemini) ☑️ AI chatbot & LLM integration (OpenAI, Anthropic, Gemini API) ☑️ Vibe Coding + production-grade architecture ☑️ AI feature integration into existing mobile apps ☑️ Low-code / No-code hybrid for rapid MVP delivery ───────────────────────────────── 🛠️ Technology Stack ───────────────────────────────── ☑️ React Native (iOS + Android) | Expo SDK | Bare Workflow ☑️ TypeScript | JavaScript | Redux | Zustand | Context API ☑️ Firebase (Auth, Firestore, Realtime DB, Cloud Functions) ☑️ Node.js | Express.js | REST APIs | GraphQL ☑️ MongoDB | PostgreSQL | Supabase ☑️ Stripe | RevenueCat | In-App Purchases ☑️ Google Maps | Twilio | OneSignal | WebRTC | WebSockets ☑️ Push Notifications (FCM/APNs) ☑️ EAS Build | App Store | Google Play submission ☑️ OpenAI API | Anthropic API | Gemini API ───────────────────────────────── 🏭 Industries ───────────────────────────────── ☑️ FinTech & payment apps ☑️ Health & fitness ☑️ E-learning & EdTech ☑️ Ride-sharing & delivery ☑️ Subscription SaaS ☑️ Marketplace platforms ☑️ Social networking ☑️ Field service management ───────────────────────────────── ⚙️ Key Services ───────────────────────────────── ☑️ Cross-platform mobile app development (React Native + Expo) ☑️ AI feature integration into new or existing apps ☑️ Figma to React Native — pixel-perfect UI implementation ☑️ MVP development for startups (AI-accelerated delivery) ☑️ Firebase & custom backend architecture ☑️ Real-time features (WebSockets, Firebase Realtime DB) ☑️ App Store & Google Play submission + maintenance ☑️ Performance optimization & app refactoring ☑️ Long-term maintenance & dedicated support ───────────────────────────────── 🔑 Search Keywords ───────────────────────────────── React Native Developer, AI Mobile App Developer, Expo Developer, Cross-platform App Developer, Full Stack Mobile Developer, iOS Android Developer, Firebase Developer, Node.js Developer, TypeScript Developer, Startup MVP Developer, SaaS Mobile App, AI App Development, LLM Integration, OpenAI API Integration, ChatGPT Mobile App, Vibe Coding, Cursor AI Developer, App Store Optimization, FinTech App Developer, EAS Build, Expo SDK, React Native Expo, GraphQL Mobile, Supabase React Native, RevenueCat Integration, WebRTC Developer. If you need a React Native expert who delivers production-ready, AI-powered apps on time and on budget — let's connect. Best Regards, Ahsan Farooq
Ahsan F. has worked .
Prayas P.
$35/hr
100% Job Success
$200K+ earned
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I am an Expert React, React-Native , Flutter & Laravel developer with over five years of experience. My skills include: ✅ React-Native ✅Flutter ✅React ✅ Redux ✅ API ✅ LARAVEL ✅ Firebase ✅ Fastlane ✅ Maps ✅ CodePush ✅ Fabric (Crashlytics) ✅ FIGMA ✅ Third party API Integration ✅ Android ✅ IOS ✅ Javascript ✅ jQuery ✅ Ajax ✅ JSON ✅ PHP I have created many react-native projects, which required custom-designed plugins, extensions, and themes. My aim has always been to produce an app that looks beautiful and professional. If you want your work on time according to your requirements, then get in touch with me. Thank you
Muhammad U.
$35/hr
100% Job Success
Available now
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Hired a React Native developer who delivered broken builds and disappeared when things got hard? Most freelancers promise production-ready apps but hand over buggy code that crashes on real devices. 🏆 Top Rated Plus React Native Developer on Upwork ✅ 100% Job Success Score across 15 React Native mobile projects ⭐ 5.0 Rating | 1,400+ tracked hours | USA, Germany & UK clients 📱 React Native apps live on App Store and Google Play Store 🚀 7+ years building React Native mobile apps for iOS and Android I am a React Native Developer specializing in cross-platform mobile app development for iOS and Android. I build production-ready React Native apps using Expo, React Native CLI, and TypeScript from MVP to full-scale platforms. Unlike developers who treat React Native as a side skill, React Native mobile development is my core focus. I understand the difference between Expo and React Native CLI trade-offs, real-device debugging on Android, and App Store submission edge cases that kill launches. ───────────────────────────────── PROBLEM → SOLUTION → RESULTS ───────────────────────────────── Problem: Client had a slow, crash-prone React Native app with poor architecture and unstable API handling. Solution: → Refactored using clean React Native architecture + TypeScript → Optimized state management with Redux and Zustand → Integrated Firebase Auth, Firestore, and Push Notifications → Fixed navigation bottlenecks and memory leaks → Implemented CI/CD pipeline with EAS Build Results: 🚀 App performance improved by 40% 📉 Crash rate reduced significantly ⚡ Faster load time and smooth 60fps animations ✅ Successfully deployed to App Store and Google Play Store ───────────────────────────────── WHAT I BUILD ───────────────────────────────── ✅ React Native Mobile App Development Cross-platform iOS and Android apps with React Native CLI and Expo. TypeScript throughout. App Store and Play Store ready. ✅ React Native + Node.js Full Stack React Native frontend with Node.js backend, REST APIs, single developer ownership from architecture to deployment. ✅ React Native Performance Optimization Smooth animations with React Native Reanimated, list virtualization, memory leak debugging, real-device tuning. ✅ App Store & Play Store Deployment Code signing, provisioning profiles, TestFlight setup, EAS Build, review compliance — apps that pass on first submission. ✅ React Native Firebase & Supabase Integration Auth, Firestore, real-time databases, push notifications, cloud functions, and storage. ✅ React Native Codebase Rescue Fixing legacy React Native apps abandoned by previous developers. Modernizing architecture, eliminating tech debt. ───────────────────────────────── TYPES OF APPS I BUILD ───────────────────────────────── 📦 Food Delivery & On-Demand Apps 🛒 eCommerce & Marketplace Platforms 💬 Social Media & Chat Applications 🏥 Healthcare & Fitness Apps 🏠 Booking & Rental Apps 🤖 AI-Powered Mobile Applications 📊 SaaS & Business Automation Tools ───────────────────────────────── WHO I WORK WITH ───────────────────────────────── 🎯 Founders launching a React Native mobile MVP 🎯 Startups scaling from MVP to production-grade app 🎯 Businesses adding mobile to an existing web product 🎯 Teams rescuing a broken React Native codebase 🎯 Agencies needing a reliable React Native developer ───────────────────────────────── TECH STACK ───────────────────────────────── React Native | Expo | React Native CLI | TypeScript | JavaScript | Redux | Zustand | React Query | Reanimated | Firebase | Supabase| Node.js | REST APIs | GraphQL | PostgreSQL | MongoDB Stripe | Apple Pay | Google Pay | Push Notifications | App Store | Google Play | TestFlight | EAS Build | CI/CD ───────────────────────────────── Send me a message or invite me to your React Native mobile project. I respond within a few hours and will give you an honest assessment of your project scope, no commitment needed. 𝐂𝐨𝐫𝐞 𝐒𝐤𝐢𝐥𝐥𝐬 & 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬: React Native Developer, Mobile App Developer, Cross-Platform App Development, iOS App Development, Android App Development, Expo, Expo EAS, Expo Router, TypeScript, JavaScript (ES6+), Full Stack Development, Node.js, Backend Development, REST API Integration, GraphQL, Firebase, Supabase, MongoDB, PostgreSQL, Real-Time Applications, WebSockets, Push Notifications, Serverless Architecture, App Performance Optimization, Scalable Architecture, Clean Architecture, Mobile UI/UX, Responsive Design, Redux Toolkit, Zustand, React Query, Third-Party API Integration, Payment Gateway Integration, Stripe, In-App Purchases, App Store Deployment, Google Play Store Deployment, TestFlight, CI/CD, Fastlane, GitHub Actions, MVP Development, SaaS Applications, eCommerce Apps, Chat Applications, Booking Systems, AI Integration, OpenAI API, Google Maps API, Location-Based Services, Authentication (OAuth, JWT), Security Best Practices, AWS, GCP, DigitalOcean, Cloud Deployment, DevOps, Agile Development, App Deb
Muhammad U. has worked .
Oleksandr P.
$35/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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Need a mobile app built that holds up after launch? I lead mobile app development that ships production-ready iOS and Android apps that survive real users - several are live on the App Store and Google Play right now. I'm Oleksandr, founder and lead engineer at Kultrix, an AI and Mobile App Studio, working from Lviv. Most of our work is React Native mobile app development, plus the AI features and backend that make an app actually useful. I run engagements as a long-term technical partner, not a vendor you chase for updates - which is why several engagements have run 16 months to 4+ years. You get senior engineering ownership from first call to store release: clear scope, milestone-based delivery, honest timelines, and a lead who is accountable for the result. As founder and lead engineer, I make sure the mobile app development gets done right, not just fast. WHAT WE BUILD - Full mobile app development in React Native and Expo, from idea to store release - a cross-platform iOS and Android app from one codebase, typically a launched MVP in 6-10 weeks. With a senior React Native developer leading, we cover MVP development, App Store and Google Play submission, and everything in between. - AI integration inside mobile apps - chat, image and vision analysis, and conversational voice (OpenAI and Anthropic Claude), already shipped in live AI mobile apps. Clean API integration so the AI feature feels native, not bolted on. - Rescue and refactor of React Native apps that broke under real users - performance, crashes, and stability work to get an existing app back to store-ready. - Backend when your app needs more than screens: Node.js, NestJS, Python and FastAPI, PostgreSQL, MongoDB, Firebase, and Supabase (including auth and RLS). WHO IT IS FOR - Starting from scratch: a clear path from idea to a launched MVP in 6-10 weeks, built by a team that has shipped to both stores. - Already have an app: mobile app development help with new features, performance, and stability - whether you need an iOS developer, an Android developer, or both. - Want to add AI: a chat, vision, or voice feature shipped into your live cross-platform app through careful AI integration, scoped so it ships fast and stays maintainable. HOW WE WORK You talk to the people building your app, not a sales layer. We agree on scope and milestones up front, you see working builds early and often on TestFlight and internal tracks, and you get honest status instead of silence. When something is harder than estimated, you hear it early - with options, not surprises. The goal is a stable app you can grow on, and a codebase your next mobile app developer can read without a rewrite. VERTICALS WE KNOW We have shipped mobile app development work across health and wellness, nutrition, and fitness (calorie tracking, meal analysis, AI coaching), fintech and Web3 (payments, Plaid, Polygon on-chain apps), SaaS (Stripe billing and dashboards), and internal tools and logistics (warehouse and operations systems). If your app lives in one of these spaces, we have built and launched something close to it. RESULTS - An AI nutrition tracker - React Native meal and calorie analysis with Anthropic Claude and OpenAI - live on both the App Store and Google Play, owned end to end (mobile, API, and admin). - An AI fitness app on a Python and FastAPI backend with OpenAI, live on the App Store and Google Play. - A conversational-voice health app built with React Native, Expo, and Claude. - A Web3 scratch-card app on Polygon with Plaid integration, live on Google Play, plus a daily-quotes app on the App Store. - A warehouse operations system that runs 4x faster for 100+ employees. - Long-term mobile app development engagements kept for 16+ months and 4+ years - the clearest signal that this work lasts. OUR STACK React Native, Expo, TypeScript for cross-platform iOS and Android; Node.js, NestJS, Python and FastAPI, PostgreSQL, MongoDB, Firebase, and Supabase on the backend; Stripe, in-app purchases, push notifications, and WebSockets for real product features; and AI APIs (OpenAI and Anthropic Claude) for chat, vision, and voice. This is the full toolkit for modern mobile app development and AI integration, from first commit to a stable app on the App Store and Google Play. Send me your idea or your existing app and you will get back a clear, honest breakdown - what to build first, what can wait, and a realistic timeline for the mobile app development. No pressure, no jargon, just a straight answer from the lead who would own the work. Oleksandr - founder and lead engineer, Kultrix (AI and Mobile App Studio).
Oleksandr P. has worked .
Kultrix - AI & Mobile App Development Studio - React Native iOS Android
Associated with
Kultrix - AI & Mobile App Development Studio - React Native iOS Android
$80K+
earned
Uneeb M.
$25/hr
100% Job Success
Available now
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AI Agent & Automation Developer | React Native | Full Stack (Web & Mobile) | 6+ Years | 100% Job Success | Top Rated Plus Hi, I'm Uneeb I help founders and businesses build AI-powered products, automate workflows, and ship mobile & web apps that are fast, scalable, and production-ready. If you need someone who understands product and AI strategy, not just code, and can take your idea → MVP → launch → scale, you're in the right place. Most clients come to me when: ✔ They want to add AI agents or automation to their product (chatbots, AI workflows, intelligent features) ✔ They need a React Native app for iOS & Android fast, clean, App Store ready ✔ They have an MVP idea and need to ship to real users within weeks ✔ Their existing app has performance issues or bugs others couldn't fix ✔ They need a full stack system: AI backend + mobile app + web app + admin dashboard + cloud infrastructure "Exceptional React Native developer who delivered a high-quality, performant mobile app ahead of schedule. Strong problem-solving skills, excellent communication, and expertise in both iOS and Android development make them a top choice for any project." Client review, 5 stars AI AGENTS & AUTOMATION (High Demand) I design and build AI agents and automation systems that actually add value to your product or business: → AI agent development (OpenAI, Claude, LangChain, custom LLM workflows) → AI chatbots & conversational assistants → Workflow automation (n8n, Zapier, custom Python + Node.js pipelines) → RAG (Retrieval-Augmented Generation) & knowledge-based AI systems → AI-backed recommendations & personalization engines → AI SaaS tools, intelligent dashboards & internal automation → Python scripting for data processing, automation & backend AI services MOBILE APP DEVELOPMENT I build high-performance iOS & Android apps using React Native (Expo & CLI). From MVP to production, I deliver apps that are fast, scalable, and ready for the App Store and Google Play. → React Native (Expo & CLI) cross-platform iOS & Android → Native modules: iOS (Swift) & Android (Kotlin/Java) → Real-time chat & messaging (WebSockets, Firebase) → Push notifications (Firebase, OneSignal) → Payments & subscriptions (Stripe, Apple Pay, Google Pay) → Maps, location tracking, camera & media → App Store & Google Play publishing end to end → Performance optimization & bug fixing WEB APP & FULL STACK DEVELOPMENT → Frontend: React.js, Next.js, TypeScript, Tailwind CSS → Backend: Node.js, Express.js, Python (Django/FastAPI), REST APIs, GraphQL → Auth: JWT, OAuth, Firebase Auth, Supabase Auth → Payments: Stripe, subscriptions, webhooks → Real-time: WebSockets, scalable event systems DEVOPS & CLOUD INFRASTRUCTURE → AWS: EC2, Lambda, S3, API Gateway, CloudFront, RDS → CI/CD pipelines: GitHub Actions, Bitbucket Pipelines, Fastlane → Docker & containerization → Mobile release automation: TestFlight, Firebase App Distribution → Infrastructure setup & server management → Monitoring, logging & performance optimization → Firebase, Supabase (backend-as-a-service) DATABASES → MongoDB, PostgreSQL, MySQL WHY CLIENTS CHOOSE ME ✔ Top Rated Plus consistent 5-star delivery ✔ 100% Job Success Score ✔ Product & AI-strategy focused, not just code ✔ Full-cycle delivery from cloud infrastructure to shipped app ✔ Fast, clear communication 0–4 hour response time ✔ Strong with AI SaaS, MVPs, and startup builds ✔ Long-term support mindset INDUSTRIES I'VE WORKED IN Healthcare · Fintech · E-commerce · Logistics · Food Delivery · Education · SaaS · On-Demand · Travel FREE CONSULTATION Have an app idea, an existing product, or want to add AI automation or cloud infrastructure to your workflow? Click "Invite to Job" even if we don't end up working together, I'll give you honest feedback on your stack, architecture, and roadmap.
Uneeb M. has worked .
Momen F.
$15/hr
100% Job Success
$5K+ earned
Available now
Offers consultations
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Senior React & React Native Developer helping startups build and scale B2B SaaS web & mobile applications. 6+ years of experience shipping MVPs and SaaS products using React, React Native, and Supabase. Focused on speed, clean architecture, and real product outcomes. 🚀 I help startups ship fast, scalable web & mobile products — without the chaos. If you’re a startup founder or product team, you don’t need “just a React dev”. You need someone who understands product, speed, and scale — and builds accordingly. That’s exactly where I fit. What I do I design and build production-ready web & mobile apps using React, React Native, and modern SaaS stacks, from MVP to scale. Proven results 📦 20+ shipped applications (web & mobile) 🚀 Helped startups launch investor-ready MVPs 📱 Built cross-platform apps used by thousands of users ⚡ Reduced dev time using clean architecture + AI-assisted workflows My core focus - Startups & SaaS products - MVP → v1 → scale - Clean, maintainable, future-proof code - Tech stack (what clients actually care about) Frontend - React, Next.js - React Native, Expo - TypeScript, Tailwind, MUI Backend & Infra - REST & GraphQL APIs - Supabase (Auth, DB, Storage, Realtime) - Firebase Product-ready essentials - Authentication & role-based access - Payments (Stripe) - Scalable app architecture - Performance & UX optimization Why clients work with me 🧠 I think like a product owner, not just a developer ⚡ I move fast without breaking things 📞 Clear communication, zero fluff 🧩 I care about why you’re building, not just what Experience level Senior Frontend / Mobile Developer 6+ years of hands-on experience Worked with startups, early-stage products, and growing teams Bonus I work extremely well with: • Early-stage startups & SaaS products • B2B founders building MVPs or scaling production apps • Teams that value speed, clarity, and clean decision-making • Products built on Supabase-heavy stacks (very common on Upwork) Call to action If you have a startup idea, MVP, or existing app that needs improvement send me a message. I’ll review your setup and give you clear next steps before we start.
Momen F. has worked .
Asif H.
$25/hr
100% Job Success
$20K+ earned
Offers consultations
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React Native Developer specializing in iOS & Android mobile apps for UAE and USA markets. I build delivery platforms, marketplace apps, ecommerce apps, and MVPs using Expo and Supabase from first screen to App Store and Play Store. 10+ production apps live with real users. Leading a team of 5 developers at a software agency delivering apps across UAE, USA, UK, and Europe. If you're building a mobile app with Expo and Supabase and need someone who owns the full process from first screen to App Store that's exactly what I do. Where I specialize: - Delivery & logistics apps customer app, driver app, real-time tracking, order management - Marketplace apps multi-vendor, product search, secure payments, reviews - MVP development Expo + Supabase, idea to App Store in 2-4 weeks - AI-powered features chat assistants, OCR scanning, voice interaction - App rejection fixes, RevenueCat subscriptions, Stripe payments, EAS Build My tech stack: React Native - Expo (SDK 56 & EAS) - Supabase - Firebase - TypeScript - Stripe - RevenueCat - Node.js - Google Maps What my clients say: "Handled everything with exceptional professionalism" "He nailed every single one of my requests. The app is amazing." Slider App 10,000+ users, 50,000+ monthly orders across UAE. I don't just write code. I understand your business goals and build mobile products that actually work for real users. Currently available for new projects. Message me I typically respond within 1 hour.
Asif H. has worked .