I specialize in building robust, end-to-end VPN ecosystems — from cross-platform applications to powerful admin panels and secure backend infrastructures. With years of hands-on experience across multiple VPN protocols and deployment environments, I deliver secure, scalable, and high-performance VPN solutions tailored to your exact business needs. 🛡️ Supported VPN Protocols: ✅ WireGuard – Lightning-fast, modern VPN protocol. ✅ OpenVPN – Battle-tested and widely compatible. ✅ IKEv2/IPSec – Ideal for mobile security and fast reconnects. ✅ OpenConnect / AnyConnect – Cisco-compatible enterprise-grade tunneling. ✅ Shadowsocks – Lightweight proxy for bypassing censorship. ✅ V2Ray / VLESS / VMess – Next-gen obfuscation and tunneling protocols. ✅ Trojan – TLS-based protocol for strong anti-censorship. 📱 Cross-Platform VPN Application Development: ✅ iOS (Swift / Objective-C) ✅ Android (Kotlin / Java / Flutter) ✅ Apple TV & Smart TVs ✅ macOS, Windows, Linux (native or hybrid) ✅ Browser Extensions (Chrome, Firefox, Edge) Premium Features Include: 🔒 Kill Switch 🔀 Split Tunneling 🧹 Ad & Malware Blockers 🌐 Custom DNS 💸 In-App Purchases (Stripe, Google, Apple) 📱 TV Login via QR Code 🔁 Auto Protocol Switching 🧠 Advanced Admin Panel & Backend Infrastructure: Designed with ISPs, VPN providers, and enterprise clients in mind, my Laravel-based admin panels include: 📊 Smart Dashboard: Real-time user activity, traffic stats, server status, and alerts. 👥 Client Management: Create, suspend, edit users; ticket support; manage devices. 🧾 Bulk Account Creation: Generate voucher/gift card accounts instantly. 🧑‍🤝‍🧑 Group & Subscription Control: Manage plans and group-level privileges. 🌍 Server Control: Add/manage VPN servers, view resource usage (CPU/RAM/BW). ⚖️ Load Balancing: Automatic traffic distribution for 99.99% uptime. 🛑 Downtime Alerts: Receive instant alerts via Slack, email, or SMS. 🔒 Decentralized Auth System: Keeps users connected even during API outages. 📈 Real-Time Monitoring: Accurate online user count & server performance tracking. 💳 Secure Payment Gateway Integrations: ✅ Stripe, PayPal – Seamless subscriptions and one-time payments. ✅ Crypto Payments – CoinGate, CoinPayments integration for privacy-focused users. Whether you're launching a white-label VPN service, need a corporate-grade internal VPN, or want a fully branded cross-platform app — I can deliver a secure, user-friendly, and feature-rich solution tailored just for you. 🛠️ Let’s build your VPN empire — with zero compromises on speed, privacy, or performance.

🚀 Mobile App Developer | MVP to Scalable Apps (Flutter, iOS, React Native) I help startups and businesses build and launch mobile apps fast - from MVP to scalable production apps. ✅ Available Now ✅ 100% Job Success ✅ Top Rated If you need to: ✔ Build your app from scratch ✔ Fix bugs or crashes ✔ Improve performance or UI ✔ Integrate APIs or real-time features 👉 I can help you get it done efficiently. 💡 What I do: • Build MVP apps quickly to validate ideas • Develop scalable apps (Flutter, iOS, React Native) • Fix issues, improve speed, and stabilize apps • API integration (REST, Firebase, WebSockets) • Convert Figma/UI into clean mobile apps ⚡ Why clients work with me: • 8+ years experience in real-world apps • Focus on results, not just code • Clean, scalable architecture • Fast communication & reliable delivery 📈 Experience: Worked on 50+ apps including: Service platforms Real-time apps (chat, tracking) SaaS & business apps 💬 If you have an app idea or need help improving your app, feel free to message me - happy to guide you before you invest.

Upwork certified Mobile App Developer, Senior Mobile App Developer, React Native, DevOps, React Developer, IOS mobile app Developer, Android mobile app Developer, Node.JS, TypeScript, Hybrid App Development, AI Mobile App Development, Web Development with experience in mobile app development for 10 years. I turn your bold ideas into reality✨ My responsibilities: ✅ Strong JavaScript development skills (TypeScript, ES6), React.js, React Native ✅ Strong experience with Node.js ✅ Expertise in MongoDB / NoSQL databases ✅ Strong object-oriented programming and design skills ✅ Experience with RESTful web services ✅Ability to solve problems independently ✅ Outstanding teamwork and communication skills ✅ Understanding of modern Mobile technologies ✅ Ability to quickly learn new technologies Skills & Expertise: ✅ TypeScript ✅ Node JS (Express / Nest) ✅ MongoDB / MySQL / Firebase ✅ Third-Party API integrations Be sure, I'll provide you with: ✅ Clean, bug-free and highly structured source code, check please my GitHub ✅ Regular report of project status with relevant deliverable Looks like I'm a superman? I'll let you in my secret: I am a part of Kit Global team, actually, I am CEO of mobile development company, and in the past a very strong back-end dev. We want your story to be a successful one, so we develop solutions that help our clients' businesses to grow. With exposure to multiple industry verticals, we enjoy working on innovative challenges and amend our working process to cater to your expectations. However, we only accept projects that we can handle and never waste time for trial and error process development. I have a strong grip over developing these below-listed domain's app: ✅ E-Commerce Apps ✅ Social Networking Apps ✅ Taxi Apps ✅ Chat & Dating Apps ✅ E- Learning App ✅ Health & Fitness Apps ✅ Food Delivery Apps ✅ Photo Editing & Sharing Apps ✅ Travel Apps ✅ Music & Video Player Apps ✅Telemedicine As a bonus, I offer you: ✅Q/A testing, application deployment ✅Free consulting and support I believe that communication is the key to a successful project, so please let me know a time to discuss that works best for you!

Built mobile products used by 𝟮𝟱𝗠+ 𝗮𝗰𝘁𝗶𝘃𝗲 𝘂𝘀𝗲𝗿𝘀 and contributed to apps with 𝟱𝟬𝗠+ 𝗱𝗼𝘄𝗻𝗹𝗼𝗮𝗱𝘀 across iOS, Android, Flutter, React Native, and AI-powered platforms. Over 10 startups I've worked with successfully raised funding, including companies that secured more than $𝟱𝗠 𝗳𝗿𝗼𝗺 𝗶𝗻𝘃𝗲𝘀𝘁𝗼𝗿𝘀 after launching and scaling their products. I'm 𝗩𝗶𝗷𝗮𝘆 𝗞𝗮𝗰𝗵𝗵𝗮𝗱𝗶𝘆𝗮, a Mobile App Developer with 12+ years of experience building AI-powered mobile applications, healthcare apps, fintech platforms, SaaS products, social networks, eCommerce solutions, and enterprise applications. Over the years, I've delivered 50+ applications across iOS Development, Android App Development, Flutter Development, React Native Development, and AI Mobile App Development. If you're still here & reading this then chances are you're facing one of these challenges: 🔹 You have an app idea but don't know the fastest path to launch an MVP. 🔹 You're looking for an experienced iOS Developer, Android Developer, Flutter Developer, or React Native Developer who can actually build and scale the product, not just write code. 🔹 You want to integrate AI into your mobile app using OpenAI API, Claude, AI Agents, or custom AI workflows but aren't sure where to start. 🔹 Your existing application suffers from performance issues, poor architecture, bugs, low retention, or scalability limitations. 🔹 You need a developer who understands both technology and product strategy. That's where I can help. 𝗠𝘆 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗶𝗻𝗰𝗹𝘂𝗱𝗲𝘀: ✔ AI Mobile App Development ✔ AI App Development ✔ AI Agent Development ✔ iOS Development ✔ Android App Development ✔ Flutter Development ✔ React Native Development ✔ Mobile App Development ✔ MVP Development ✔ App Maintenance & Scaling ✔ Mobile App Design ✔ API Integration ✔ User Authentication ✔ User Profile Creation ✔ In-App Purchases ✔ Push Notifications ✔ App Store Upload & TestFlight Deployment 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗜 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗱𝗮𝗶𝗹𝘆: • Swift • SwiftUI • UIKit • Objective-C • Kotlin • Flutter • Dart • React Native • Firebase • Supabase • Node.js • OpenAI API • Claude API • FlutterFlow 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜'𝘃𝗲 𝘄𝗼𝗿𝗸𝗲𝗱 𝗶𝗻: ▪️Healthcare & Wellness ▪️Fintech & Financial Services ▪️E-Commerce ▪️SaaS Platforms ▪️Social Networking ▪️Enterprise Software ▪️Funded Startups 𝗦𝗲𝗹𝗲𝗰𝘁𝗲𝗱 𝗥𝗲𝘀𝘂𝗹𝘁𝘀: ▪ Contributed to a product with 50M+ downloads and 25M+ active users ▪ Delivered 50+ mobile applications across native and cross-platform ecosystems ▪ Helped startups launch MVPs, validate ideas, and secure investor funding ▪ Worked on products that collectively raised millions in venture funding ▪ Built scalable mobile architectures supporting thousands of daily users 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗵𝗶𝗿𝗲 𝗺𝗲: ★ You work directly with the developer writing the code (ME) ★ Product-first thinking, not feature-first development ★ Clean architecture and scalable codebases ★ Fast communication and transparent execution ★ Long-term support after launch ★ Experience working with startups, funded companies, and enterprises ⚡️ 𝙒𝙝𝙮 𝙙𝙤𝙣'𝙩 𝙬𝙚 𝙝𝙤𝙥 𝙤𝙣 𝙖 𝙦𝙪𝙞𝙘𝙠 𝙘𝙤𝙣𝙨𝙪𝙡𝙩𝙖𝙩𝙞𝙤𝙣 𝙘𝙖𝙡𝙡 𝙖𝙣𝙙 𝙙𝙞𝙨𝙘𝙪𝙨𝙨 𝙬𝙝𝙖𝙩 𝙮𝙤𝙪'𝙧𝙚 𝙗𝙪𝙞𝙡𝙙𝙞𝙣𝙜? 𝙄𝙣 𝙟𝙪𝙨𝙩 𝙖 𝙛𝙚𝙬 𝙢𝙞𝙣𝙪𝙩𝙚𝙨, 𝙄'𝙡𝙡 𝙗𝙚 𝙖𝙗𝙡𝙚 𝙩𝙤 𝙩𝙚𝙡𝙡 𝙮𝙤𝙪 𝙬𝙝𝙚𝙩𝙝𝙚𝙧 𝙄'𝙢 𝙩𝙝𝙚 𝙧𝙞𝙜𝙝𝙩 𝙛𝙞𝙩, 𝙗𝙚𝙛𝙤𝙧𝙚 𝙮𝙤𝙪 𝙞𝙣𝙫𝙚𝙨𝙩 𝙛𝙪𝙧𝙩𝙝𝙚𝙧 𝙩𝙞𝙢𝙚 𝙤𝙧 𝙢𝙤𝙣𝙚𝙮.

$54𝗞+ 𝗠𝗥𝗥 𝗯𝘂𝗶𝗹𝘁 𝗳𝗼𝗿 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 | 𝗕𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀 𝘁𝗵𝗮𝘁 𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗲 𝗿𝗲𝘃𝗲𝗻𝘂𝗲 Flutter Developer specializing in cross-platform iOS and Android mobile app development, from MVP to production release with a million downloads on both app stores. I've shipped 50+ Flutter mobile applications for both Android & iOS, including 2 𝐚𝐩𝐩𝐬 𝐰𝐢𝐭𝐡 1𝐌+ 𝐝𝐨𝐰𝐧𝐥𝐨𝐚𝐝𝐬 and a fintech platform processing €3M+ in monthly transactions across 100+ countries. Clients hire me when they need a Flutter developer who delivers production-ready mobile apps, not just prototypes. What I built: - Flutter cross-platform app development (iOS & Android) - Full MVP mobile app development; built in weeks, not months - Flutter app architecture (BLoC, Riverpod, Clean Architecture) - REST API integration & third-party SDK integration - Firebase integration (Auth, Firestore, FCM, Cloud Functions) - Supabase backend integration - Payment gateway integration (Stripe, in-app purchases, subscriptions) - Push notifications & real-time features - Geolocation & Maps integration (Google maps and Mapbox) - CI/CD deployment pipelines - Mobile analytics & attribution SDK integration (AppsFlyer, Meta SDK, Adjust) - App Store Optimization (ASO); metadata, screenshots, keywords - App Store & Google Play Store submission & release management - Retention & re-engagement setup (push campaigns, deep linking) - Flutter bug fixing, performance optimization & code refactoring - AI-powered Flutter apps, GPT integration, AI chat features, intelligent automation - AI-accelerated development using Cursor & Claude, faster delivery, cleaner code I also build apps as an indie developer. I've independently designed, built, and published my own Flutter apps in health, fitness, and productivity, apps that generate real revenue and rank in the App Store. This means when you bring me an app idea you want to monetize, I'm not just a developer executing a brief, I've been in your shoes. I understand user retention, ASO, in-app monetization, and what it takes to get downloads. For solo founders and indie app builders, this makes a real difference. I work across the complete Flutter mobile app development lifecycle: frontend Flutter development, API integration, testing, performance optimization, and App Store / Play Store release. Beyond large-scale apps, I help startups validate ideas with clean, scalable MVP architecture, structured for growth from day one. My approach: clean Flutter architecture. Reliable API integrations. Stable releases. Maintainable, scalable code. Top Rated Plus | 100% Job Success | $100K+ earned | 50+ apps delivered | 1 million app downloads Message me with your requirements and I'll outline the right technical direction.

I’m a Top-Rated Senior Full Stack Developer with 13+ years of experience building scalable web and mobile applications for startups, agencies, and enterprise clients. I specialize in delivering high-performance, user-focused solutions across both front-end and back-end development, with a strong focus on clean architecture, scalability, and long-term maintainability. ✅ Top Rated Plus – Expert-Vetted Top 1%
 ✅ 13+ Years of Professional Experience
 ✅ Full Stack Web & Mobile Application Development
 ✅ Strong Experience with Startups, SaaS Platforms & Enterprise Solutions Technical Expertise: Mobile:
Flutter, React Native, Swift, Java CMS & E-Commerce:
WordPress, Shopify, WooCommerce, HubSpot, Drupal Frontend:
React, Angular, Vue.js, Next.js, HTML5, CSS3, Tailwind CSS, Bootstrap Backend:
Node.js, Express.js, Django, Python, Laravel, .NET Databases:
PostgreSQL, MySQL, MongoDB, Firebase DevOps & Cloud:
Git, Docker, CI/CD, AWS, Azure, Nginx I have extensive experience leading projects from concept to deployment, building robust APIs, custom platforms, mobile applications, and scalable cloud-based systems while ensuring high code quality and seamless user experiences.

I offer a 𝗳𝗿𝗲𝗲 𝟯𝟬-𝗺𝗶𝗻𝘂𝘁𝗲 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 to discuss and refine your idea, recommend the right tech stack, and forecast any ongoing costs as your user base grows, so you avoid surprises and make informed decisions with clarity. 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞 | 𝐄𝐱 𝐈𝐁𝐌 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐧𝐭 | 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 | 𝟑,𝟎𝟎𝟎+ 𝐡𝐨𝐮𝐫𝐬 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤 | 𝟏𝟎+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐎𝐮𝐫 𝐃𝐞𝐚𝐥 𝐘𝐨𝐮 𝐇𝐚𝐯𝐞 𝐚𝐧 𝐢𝐝𝐞𝐚? We’ll convert it into a scalable, beautifully designed app that delivers real-world impact and revenue growth. 𝗛𝗼𝘄 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗠𝗼𝘃𝗲𝘀 𝗙𝗿𝗼𝗺 𝗜𝗱𝗲𝗮 𝘁𝗼 𝗟𝗶𝘃𝗲 𝗣𝗿𝗼𝗱𝘂𝗰𝘁: Every project follows a clear, proven journey, divided into milestones: UI/UX design → Front-end development → Backend development → Deployment → Post-launch maintenance (8 weeks FREE) This ensures transparency, predictable delivery, and zero surprises. Words from a recent client after working together (check more on my profile below): 𝐃𝐚𝐯𝐢𝐝 𝐄. "Ashan is an amazing leader and app developer. He was my main point of contact for developing several projects. He has a very strong team that is able to understand requirements and consistently deliver on milestones. His team is able to help across the full product development process including wireframes, front end and back end development, and graphics design. "⭐⭐⭐⭐⭐ I've majored in software engineering, and I've used a myriad of technologies to help various businesses create mobile apps that have generated millions in revenue. Over the past 10+ years, I have developed a wide range of iOS and Android mobile apps. ✅ Food delivery app ✅ Ride booking app (like Uber) ✅ Real estate listing app (Like Airbnb) ✅ Social media mobile app (like TikTok/Instagram) ✅ Startups/Investment management mobile app ✅ Wellness mobile app ✅ Fitness and Nutrition mobile app (like CalAI, MyFitnessPal) ✅ Sports mobile app ✅ E-commerce mobile app ✅ Language Learning Mobile App (Like Duolingo) ✅ Event management mobile app ✅ Grocery/Meal Planning mobile app ✅ Freelance mobile app ✅ Service Booking Mobile App (Home/HVAC) ✅ Inventory Management Mobile App ✅ Learning Management Mobile App ✅ Appointment Booking Mobile App (Salon/Doctor) ✅ Venue Booking Mobile App (Sports/Events) ✅ Task Management Mobile App (Project Management/To-Do) ✅ On-Demand Custom Mobile Apps As your 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗽𝗮𝗿𝘁𝗻𝗲𝗿, I go above and beyond to ensure your app’s success, from concept to launch. What I Also Bring Beyond Development: → Technology & architecture consulting → Product roadmap & feature prioritization → Help you understand any possible ongoing costs with the project → Cost-effective tech stack selection with long-term cost planning → Scalability strategy as your user base grows → Technical support during investor or stakeholder discussions 𝗠𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲 & 𝗟𝗼𝗻𝗴-𝗧𝗲𝗿𝗺 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 I provide free post-delivery support for 8 weeks, followed by flexible maintenance plans based on your product needs, usage scale, and future roadmap, always discussed transparently. If you’re looking for someone who understands your product, owns outcomes, communicates clearly, and thinks long-term, let’s connect and build something solid. ❗❗ Check out my portfolio! ❗❗ Highlighted Skills: Full Stack Developer | Expert Full Stack Developer | Full Stack Mobile App Developer | Full Stack AI Developer | Expert Full Stack Mobile App Developer | Mobile Developer | iOS Developer | Android App Developer | Mobile App Development | Cross platform development | AI App Developer | AI App | Mobile Developer | App Developer | Mobile App Development Consultation | IT Consultation | App Developer | AI App Developer | iOS App Development | iOS App | Android App Development | Hybrid App development | Mobile App Development Consultation | Flutter | Firebase | Dart | Flutter Dart | Flutter Firebase | iOS Development | Android App Development | Smartphone | User Authentication | In App Purchases | API Integration

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).

React Native & AI App Developer | MVPs to Production | 5M+ Downloads 10+ years · 73 projects · 8,000+ hours · 100% Job Success · Top Rated Plus I build production React, React Native and Expo apps and AI-powered SaaS platforms for founders and teams who need their iOS and Android product shipped to real users not a prototype that demos well and breaks in production. One cross-platform codebase, both app stores, built to scale. A few I've shipped: • MyLebara - telecom account app live across 8 countries, 5M+ downloads, 4.7★. • TestNow / Wheebox - AI proctoring with face recognition and object detection, 153K+ assessments completed. • Styley - AI image-generation platform with custom-trained models and live Zillow integration. Where I'm the right fit: • Founders shipping an MVP mobile app who need it live fast, built by someone who's done it before. • Teams with a vibe-coded prototype (Cursor, Lovable, Replit, Bolt) that needs a real engineer to harden the architecture, fix the data layer, and take it to production. • Existing apps that need AI added - OpenAI/GPT, chatbots, LangChain, RAG, image recognition, document processing. • SaaS products that need mobile and web built together: Next.js, Node.js, TypeScript, Supabase - auth, billing, multi-tenancy. I handle the parts that usually go wrong: real-time features, payments (Stripe, Twilio), maps, offline support, push notifications, App Store and Play Store deployment, and third-party API integration (Firebase, MLS, Zillow, telecom and government systems). I don't go silent, and I don't send "ok done" with a broken build, you will see working builds. Send me a message with what you're building and where it stands an idea, a Figma, a repo, a prototype, or a broken app. I'll tell you for free whether your stack is the right call and what it'll realistically take to ship.

𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞, 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐬𝐢𝐠𝐧𝐞𝐫 𝐚𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, 𝐍𝐞𝐱𝐭.𝐣𝐬, 𝐍𝐞𝐬𝐭.𝐣𝐬, 𝐍𝐨𝐝𝐞.𝐣𝐬 | 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐌𝐨𝐛𝐢𝐥𝐞 & 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝟏𝟎+ 𝐘𝐞𝐚𝐫𝐬 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 🚀 Ready to start immediately. 📱 Mobile & web app prototyping. ⏱️ On-time delivery + daily updates. 💰 Budget-friendly with high-quality work. 💼 20+ long-term projects completed successfully. My skills: ✔ React Native. ✔ OpenAI ✔ Native iOS ✔ Native Android ---------- 𝐌𝐲 𝐂𝐥𝐢𝐞𝐧𝐭'𝐬 𝐫𝐞𝐯𝐢𝐞𝐰s: ---------- ⭐⭐⭐⭐⭐"𝑰𝒕'𝒔 𝒃𝒆𝒆𝒏 𝒂 𝒑𝒍𝒆𝒂𝒔𝒖𝒓𝒆 𝒕𝒐 𝒘𝒐𝒓𝒌 𝒘𝒊𝒕𝒉 𝑮𝒖𝒓𝒋𝒊𝒏𝒅𝒆𝒓 . 𝑯𝒆 𝒉𝒂𝒔 𝒃𝒆𝒆𝒏 𝒓𝒆𝒂𝒍𝒍𝒚 𝒂𝒄𝒄𝒐𝒎𝒎𝒐𝒅𝒂𝒕𝒊𝒏𝒈 𝒂𝒏𝒅 𝒕𝒉𝒆 𝒓𝒆𝒔𝒖𝒍𝒕 𝒊𝒔 𝒑𝒆𝒓𝒇𝒆𝒄𝒕!"⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ "𝑯𝒂𝒅 𝒂𝒏 𝒆𝒙𝒄𝒆𝒍𝒍𝒆𝒏𝒕 𝒆𝒙𝒑𝒆𝒓𝒊𝒆𝒏𝒄𝒆 𝒘𝒊𝒕𝒉 𝑮𝒖𝒓𝒋𝒊𝒏𝒅𝒆𝒓, 𝒘𝒆 𝒂𝒔𝒌𝒆𝒅 𝒉𝒊𝒎 𝒕𝒐 𝒕𝒂𝒌𝒆 𝒂𝒏 𝒆𝒙𝒊𝒔𝒕𝒊𝒏𝒈 𝑹𝒆𝒂𝒄𝒕 𝑵𝒂𝒕𝒊𝒗𝒆 𝒂𝒑𝒑 𝒕𝒉𝒂𝒕 𝒓𝒂𝒏 𝒐𝒏 𝒊𝑶𝑺 𝒂𝒏𝒅 𝒈𝒆𝒕 𝒊𝒕 𝒕𝒐 𝒃𝒖𝒊𝒍𝒅 𝒇𝒐𝒓 𝑨𝒏𝒅𝒓𝒐𝒊𝒅. 𝑶𝒇 𝒄𝒐𝒖𝒓𝒔𝒆 𝒕𝒉𝒆𝒓𝒆 𝒘𝒆𝒓𝒆 𝒄𝒐𝒎𝒑𝒍𝒊𝒄𝒂𝒕𝒊𝒐𝒏𝒔 𝒊𝒏 𝒑𝒂𝒄𝒌𝒂𝒈𝒆 𝒗𝒆𝒓𝒔𝒊𝒐𝒏𝒔 𝒂𝒏𝒅 𝒍𝒊𝒃𝒓𝒂𝒓𝒚 𝒄𝒐𝒎𝒑𝒂𝒕𝒊𝒃𝒊𝒍𝒊𝒕𝒊𝒆𝒔, 𝒃𝒖𝒕 𝒉𝒆 𝒅𝒊𝒍𝒍𝒊𝒈𝒆𝒏𝒕𝒍𝒚 𝒓𝒆𝒔𝒐𝒍𝒗𝒆𝒅 𝒆𝒗𝒆𝒓𝒚 𝒑𝒊𝒆𝒄𝒆 𝒖𝒏𝒕𝒊𝒍 𝒘𝒆 𝒉𝒂𝒅 𝒔𝒐𝒎𝒆𝒕𝒉𝒊𝒏𝒈 𝒘𝒆 𝒍𝒐𝒗𝒆𝒅." ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ "𝙂𝙤𝙤𝙙 𝙚𝙭𝙥𝙚𝙧𝙞𝙚𝙣𝙘𝙚." ⭐⭐⭐⭐⭐ ---------- ---------- I’m a Full-Stack Mobile & Web App Developer with over 10 years of experience delivering high-quality applications across iOS, Android, and modern web platforms. I specialize in building scalable, cross-platform mobile apps using React Native and Flutter, as well as dynamic, SEO-friendly web applications using Next.js, React.js, Vue.js, Node.js, and Nest.js. With 20+ successful projects under my belt, I bring full-cycle development expertise across diverse industries, from design and development to deployment and post-launch support. ✅ Healthcare & Medical Apps ✅ Marketplace Apps ✅ Dating & Social Apps ✅ Child Care / Parental App ✅ Fitness & Wellness Apps ✅ Ride-Sharing Apps ✅ Social Networking Apps ✅ Referral Marketing App ✅ Hotels, Travel & Hospitality Apps ✅ Scanning Apps (QR Code, Barcode, NFC, Document Scanning) ✅ Agriculture Apps ✅ Automotive Apps ✅ Retail / Auction / Price Comparison Apps ✅ Banking, Finance & Insurance (Fintech) Apps ✅ Recruitment & Job Portals / HR Software ✅ Government Agencies (Federal & State) Apps ✅ Logistics & Transportation Apps ✅ Real Estate / Property Management Apps ✅ Manufacturing Apps ✅ Law Firm / Legal Service Apps ✅ Tech Startup Apps ✅ Peer-to-Peer (P2P) Marketplace Platforms ✅ ERP Solutions ✅ CRM Systems ✅ Education, E-Learning & Coaching Apps ✅ Financial Institution Apps (Auto loans, Mortgages, Credit Cards, Personal Loans) ✅ Activity / Health / GPS Tracking Apps ✅ Bluetooth-Enabled Apps (IoT, Wearables, Devices) And much more 🔧 Tech Stack Expertise: ===== Mobile: React Native, Flutter Frontend: React.js, Next.js, Vue.js, Tailwind, Material UI, Bootstrap Backend: Node.js, Nest.js, Express.js, REST APIs, GraphQL Database: PostgreSQL, MySQL, MongoDB, SQLite Dev Tools: GitHub, Bitbucket, GitLab, CI/CD Cloud: Azure, Firebase, Vercel, Netlify Design: Figma, Adobe XD, Pixel-perfect responsive UI/UX My Approach: Deliver quality services to the end customers with complete satisfaction by providing customer-centric, result-oriented, cost-competitive innovative & functional IT solutions that provide a great ROI. Concerned about Top-notch quality? I keep our client’s ROI in mind and, therefore, deliver quality products/services and back them up with unmatched 30-day FREE support for any in-scope issues post-delivery. 💡 Let’s Build Something Great Whether you're building a startup MVP, scaling an existing app, or need a dedicated full-stack partner, I'm here to help. Let’s discuss your goals and create something amazing, together. 📨 Send me a message today for a free consultation and quote. Gurjinder Singh - Turning Ideas into Impactful Products –––– FAQs: –––– ▶️ 𝗗𝗼 𝘆𝗼𝘂 𝘀𝗶𝗴𝗻 𝗡𝗗𝗔? - Yes ▶️ 𝗗𝗼 𝘆𝗼𝘂 𝗼𝗳𝗳𝗲𝗿 𝗳𝗿𝗲𝗲 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻𝘀 𝗳𝗼𝗿 𝗮𝗽𝗽 𝗼𝗿 𝘄𝗲𝗯 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀? - Yes ▶️ 𝗗𝗼 𝘆𝗼𝘂 𝗽𝗿𝗼𝘃𝗶𝗱𝗲 𝗮𝗻 𝗮𝗽𝗽𝗿𝗼𝘅𝗶𝗺𝗮𝘁𝗲 𝗲𝘀𝘁𝗶𝗺𝗮𝘁𝗶𝗼𝗻 𝗳𝗼𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀? - Yes -----------------------Keywords--------------------- #reactnative #mobileapp #appdevelopment #mobileappdeveloper Mobile App Developer, React Native, Mobile Application Developer, Android Developer, Senior Android Developer, React Native Developer, iOS & Android App Developer, Cross Platform Mobile App, Hybrid Mobile App, Native Android App, Android App Development, Kotlin, Java, React Native, Cross Platform App Development, Hybrid App Development, Node.js, Nest.js, Express.js, REST API, API Integration, GraphQL, MongoDB, MySQL, PostgreSQL, SQLite, React.js, Next.js, JavaScript, TypeScript, Mobile App UI, Material UI, Pixel Perfect Design, Responsive Design, OpenAI API, AI Integration