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🙈 “Can we just quickly fix this?” 🙊 “It’s probably just a small change.” 🙉 “Let’s ship first and think later” I am a CEO and Business Manager at Peppernode. I create systems where architecture, decisions matter because mistakes cost more than doing it right. Call me Illia. 🏆 MY ACHIEVEMENTS 16+ years and 32+ successful products as a Full stack developer Saas, delivering SaaS platforms, MVPs, AI-powered solutions, scalable Web Applications; 13K+ dental professionals and 22K+ healthcare users supported through Healthcare Web Applications and HIPAA-compliant platforms built as a React Next.js Developer; 31–45% faster feature delivery, improved application stability, scalable SaaS platforms built as a React Full Stack Developer; 21–30% higher user engagement as a React Developer, building web applications used by 5M+ end users worldwide. React Native App Developer delivering cross-platform mobile apps. Business Analyst reducing development rework by 20–30% through accurate requirement gathering; 31 successful projects delivered to businesses across 16+ countries, serving more than 5M+ end users worldwide; 100% Job Success, $200K+ earned, 5300+ hours worked on Upwork as Full Stack Developer, with proven experience designing scalable applications, making the right technical decisions from day one 🚀 SaaS Development As a Full Stack Developer React, React Next JS Developer I build 30+ SaaS platforms with React, Python, Firebase, JavaScript, scalable architectures. As a React Developer Firebase, I've delivered 20+ SaaS projects, building web applications with connected frontend, backend systems. My experience as a Full Stack Developer Supabase React includes building SaaS platforms with React, Supabase authentication, real-time databases, secure backend, Bubble integrations. 🍽 Restaurant Ordering Systems As a Full stack developer react firebase, I've developed restaurant ordering platforms used by thousands of daily users, enabling restaurants to automate ordering,payment processes. My solutions have increased operational efficiency by 33% through workflow automation, POS integrations, Stripe payments, real-time order management. As a Wordpress developer, I've built customer and staff applications that optimize restaurant operations 📱 React Native App Development As a React Native Developer, React Native App Developer, Mobile App Developer, I've built cross-platform React Native iOS and Android applications used by businesses in 11 + countries. I've delivered 20+ React Native Mobile solutions for startups and established businesses As a React Native Developer Expo specialist with experience in React Native Expo, I take products from MVP to production, building intuitive user experiences with clean codebases As a Full Stack Developer React Native, Node JS React Native Mobile Developer, Mobile Developer, I've contributed to 25+ mobile products, building connected mobile ecosystems powered by scalable backend services. My work includes Mobile App Development React Native, React Native, Expo, mobile MVP development, enterprise applications, API integrations, authentication, App Store, Google Play releases, performance optimization, long-term product supportAI Integrations As a Full Stack Developer AI, I've built 21+ AI integrations using OpenAI API, Gemini, LangChain, reducing manual work by up to 72%, enabling AI Accelerated Development - 32% faster delivery,delivering projects up to 2× faster. My work includes Web Developer AI-powered features, AI agents, prompt engineering, AI Chatbot development, Software Development solutions that improve productivity 🔧 Tech Stack For web applications, I primarily use TypeScript, Vue.js, React, Tailwind CSS, CSS 3, Web Design, Angular to build fast responsive user interfaces. Mobile products are developed with React Native, Expo, while backend services rely on Python, FastAPI, Django, Node.js, PostgreSQL, HTML5, MySQL, Bootstrap, REST APIs to power secure, scalable applications that support millions of users. As a Full Stack Developer Laravel, I've modernized 25+ applications built with jQuery, legacy technologies by refactoring code, expanding functionality while maintaining long-term scalability As a React Developer, I have improved user engagement by 21–30% through faster interfaces, intuitive user experiences.As a Python Developer, I build reliable restaurant platforms with scalable architectures, secure payment integrations, POS connectivity, inventory synchronization, cloud-based backend services, high-performance APIs. As a Full Stack Developer React Node and Full stack developer shopify I've delivered 31 production-ready software products, helping clients launch MVPs 5–7 weeks faster while reducing production bugs by 38% through scalable architecture Full-Stack Development expertise Looking for a React Developer, Flutter developer, React Native Developer, Full Stack Developer React Node, python full stack developer flask to build your next SaaS platform?

🏆 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 (𝐓𝐨𝐩 𝟏𝟎%) 🏆 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞 | 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐬𝐢𝐠𝐧 & 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐢𝐎𝐒 & 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 | 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝟖+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 I've been building mobile apps for 8 years. Mostly React Native — it's what I know well and what I actually enjoy working with. I've shipped 42+ products across a lot of different industries: marketplaces, healthcare, fintech, booking platforms, ecommerce, B2B tools. Some of them are still running and growing. I work as a Mobile App Developer, React Native Developer, and AI Developer — and these days those three things often overlap on the same project. The AI Developer side started naturally. Clients started asking for smarter apps — chat features, recommendations, content generation, search that actually works. I learned the tools, integrated the APIs (OpenAI, Claude, LangChain), and also started building full products using AI constructors and platforms where that made more sense than writing everything from scratch. Now it's a real part of what I do, not an add-on. Click Hire or Invite React Native Developer. 📱 TYPES OF MOBILE APPLICATIONS I DEVELOP • Taxi & Transportation Apps • Booking platforms • Fitness & Health Apps • AI-based mobile systems • Security-focused iOS and Android solutions • Social media and streaming platforms — social media app, live streaming app, video streaming ecosystems • Fintech & Payments Apps • E-commerce ecosystems connected with WordPress and Shopify • Business & SaaS applications • Wearables & IoT systems — WatchOS, Apple Watch, WatchKit, smart watch integrations • Delivery and Dating Apps 🫵 WHAT YOU GET ✔️ Mobile App Development for iOS and Android — cross-platform React Native builds that actually perform, not just pass review. ✔️ React Native Developer work done properly — solid architecture, clean navigation, auth, payments, push notifications, Firebase, API integration, App Store and Google Play release. ✔️ AI Developer integration — adding AI features to existing apps, or building AI-first mobile products from scratch using AI tools, constructors, and APIs. ✔️ Mobile App Design — I work in Figma, think about flows, and care about UX. Not a designer, but I know when something feels wrong and I'll say so. ✔️ Honest communication — I'll tell you what's realistic, flag problems early, and keep the project moving without needing to be chased. 🔥 WHAT I'VE ACTUALLY BUILT ✔️ 42+ apps delivered as a Mobile App Developer — from quick MVPs to multi-year product partnerships. ✔️ React Native Developer across healthcare, fintech, logistics, wellness, ecommerce, social, and B2B — most categories covered at this point. ✔️ AI Developer projects: AI integrations, AI-powered Mobile App features, and full AI app builds using modern platforms and tools. ✔️ Products that kept users: better retention, fewer drop-offs, smoother flows — that's what matters after launch. 🚚 WHERE I HELP ✔️ New Mobile App Development — MVP to production as a React Native Developer. ✔️ Existing apps — audit, rebuild, or improve what's already there. ✔️ AI Developer work — integrate AI into your app, add smart features, or build something AI-first from the ground up. ✔️ Anything cross-platform — one React Native codebase, iOS and Android, done right. 🏆 WHAT I'VE WORKED ON ✔️ Marketplace apps — listings, search, chats, bookings, payments, reviews, maps, admin panels. ✔️ Healthcare and wellness — onboarding, profiles, appointment flows, reminders, HIPAA-aware builds. ✔️ AI-powered products — AI Mobile App Development with real features: chat, recommendations, smart search, content generation. ✔️ Ecommerce and subscriptions — In-App Purchases, product catalogs, checkout flows, retention mechanics. ✔️ Business tools — role-based dashboards, approvals, reports, notification systems. ⚒️ HOW I WORK ✔️ React Native is my primary tool as a Mobile App Developer. I know it well, I use it daily, and I don't oversell what it can or can't do. ✔️ As an AI Developer I pick the right approach for the project — sometimes that's an API integration, sometimes it's an AI constructor, sometimes it's a lightweight custom build. ✔️ Firebase, Node.js, REST APIs, User Authentication, In-App Purchases — the backend side is covered. ✔️ I'm involved from discovery to release. I'll ask the questions that matter early so we don't redesign things at the end. ✔️ After launch I'm available — bugs, improvements, new features, whatever comes next. 📩 READY TO START ASAP

💻 Senior Developer Freelancer Individual ⚡ 6+ Years of Experience 🚀 10+ Successfully Delivered Projects 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 ⚛️ React.js ▲ Next.js 📘 TypeScript 🔄 Redux 🕸️ GraphQL 🔌 REST API 🎨 HTML5 / CSS3 / SCSS 🧩 Material UI / Bootstrap 📦 Webpack 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 🟢 Node.js 🏗️ NestJS / Express.js 🗄️ PostgreSQL / MongoDB 🔐 JWT Authentication ⚡ SocketIO ☁️ AWS / Firebase / Heroku 🔗 REST APIs & Integrations 𝗠𝗼𝗯𝗶𝗹𝗲 📱 React Native 🚀 Expo / React Native CLI 🍎 iOS / 🤖 Android 🧪 TestFlight / Firebase Distribution 🛠️ Android Studio / Xcode / VSCode Let's chat mate!

✅ Find the 𝐋𝐈𝐎𝐍 in my profile, choose “𝐈𝐍𝐕𝐈𝐓𝐄” and send me the secret code to get a 𝟓% 𝐃𝐈𝐒𝐂𝐎𝐔𝐍𝐓 on your product! 🦁 🚀 𝟑𝟎,𝟎𝟎𝟎+ hours in Mobile App Development 📱 𝟔𝟎+ mobile apps & products delivered ⭐ 𝟐𝟓𝟎,𝟎𝟎𝟎+ app downloads 💸 $𝟐M+ revenue generated 🏪 𝟐𝟓+ App Store & Google Play launches ✅ Free consultation before we start I’m a React Native Developer and Mobile App Developer building production-ready iOS and Android apps with React Native, TypeScript, Expo, Firebase, Redux, Node.js and APIs. I work across the full Mobile App Development lifecycle — architecture, UI, authentication, payments, subscriptions, push notifications, backend integrations, performance, testing and store release. 📱 REACT NATIVE MOBILE APP DEVELOPMENT For a marketplace product, I built a React Native app from scratch with Node.js, MongoDB, Redux and Firebase. Within 6 months, it reached 200,000+ customers and 8,000+ transactions per week. For Champstracker, I implemented Firebase authentication, payments, Redux and React Native animation across 40+ screens. The app grew to 85,000+ active users, a 4.7★ rating from 12,000+ reviews, and $40K+ MRR. For Catwalk, I combined React Native TypeScript with Node.js and MongoDB. The MVP launched in 9 weeks, passed 100,000+ downloads, and the company later raised $2.3M. ⚡ WHAT I CAN BUILD • React Native Mobile App Development • React Native Expo apps • React Native Firebase integrations • React Native TypeScript development • iOS & Android App Development • MVP Mobile App Development • Mobile App UI/UX • Authentication & onboarding • Push Notifications • Firebase Auth, Firestore & Realtime Database • In-App Purchases & Subscriptions • Stripe integrations • REST API & GraphQL • Redux & state management • WebRTC & real-time features • Node.js backend development • App Store & Google Play deployment • App maintenance & scaling 🔥 REACT NATIVE, EXPO & FIREBASE I work with both Expo and bare React Native. Expo is ideal when speed and maintainability matter. Bare React Native gives more control for advanced native modules and platform-specific functionality. With Firebase, I regularly use Authentication, Firestore, Realtime Database, Cloud Messaging, Crashlytics and Analytics. For larger products, I combine React Native with Node.js, PostgreSQL, MongoDB, REST APIs and GraphQL. ⚙️ PERFORMANCE & SCALING Most React Native performance problems come from architecture decisions made early. I focus on: • reducing unnecessary re-renders • FlatList optimization • image caching • state architecture • API request patterns • startup performance • memory usage • Android performance • crash monitoring My goal is to keep apps fast and maintainable after version 1.0 — when users, features and integrations start growing. 💡 REACT NATIVE VS FLUTTER / SWIFT / KOTLIN My primary specialization is React Native. I use React Native when businesses want one maintainable codebase for iOS and Android instead of maintaining separate Swift and Kotlin apps. I’ve also worked with Flutter migrations and native integrations, so I can evaluate when React Native, Flutter or Native App Development makes sense. For one retail product, after moving to React Native, load time improved by 60%, crash rate dropped from 4.2% to under 0.3%, and the store rating increased from 3.8 to 4.6★. 🛠️ CORE STACK React Native • React • TypeScript • JavaScript • Expo • Firebase • Redux • Node.js • MongoDB • PostgreSQL • REST API • GraphQL • WebRTC • Stripe • iOS • Android If you need a React Native Developer, Mobile App Developer or React Native Engineer who can own the product from architecture to store release — send me an invite. 🚀 🎯 HOW I WORK I usually start by understanding the product goal, key user flow and technical constraints before writing code. This helps avoid overbuilding the MVP and keeps the architecture flexible when new features appear. For new React Native projects, I can help define: • app architecture and navigation • Expo vs bare React Native setup • Firebase vs custom backend approach • authentication and permissions • API structure and data flow • payment and subscription logic • push notification strategy • App Store / Google Play release plan For existing apps, I can review the current codebase, identify performance bottlenecks, unstable areas and technical debt, then prioritize fixes based on impact. I’m comfortable joining a product at any stage — from an idea and Figma files to an existing React Native app already used by real customers. The goal is always the same: ship faster without creating problems that become expensive to fix later. 🚀