Hire the Best Accelerated Mobile Pages (AMP) Developers

Mobile App Developer specializing in React Native & Flutter. I help startups build cross-platform iOS & Android apps – from validated MVP to App Store launch. Backed by a 330+ engineer full-cycle team with 20+ years of experience, I deliver mobile applications that go beyond clean UI – covering backend API, cloud infrastructure, QA, and AI integration in a single engagement. Whether you're a founder validating your first mobile idea or a product team scaling an existing app, I focus on one goal: shipping a product that users download, use, and come back to. 💡 Case Studies 🧠 BibleLytics (Wellness & AI, Startup) – Built a full AI-powered mobile MVP from discovery phase to App Store launch. The app guides users to Bible verses based on emotional state using vector search across 400+ mapped emotions and OpenAI GPT-powered prayer generation. Delivered cross-platform iOS + Android from a single Flutter codebase, plus a web admin dashboard and landing page. Stack: Flutter · GCP · OpenAI GPT · Vector Search · JavaScript Result: Budget-efficient cross-platform delivery · validated concept before development investment · scalable architecture ready for multi-version expansion. ⚖️ Legal Beagle (LegalTech SaaS, USA) – Developed a white-label legal services platform with a 12-person team. The Android app enables real-time attorney-client collaboration: video consultations, secure messaging, e-signing, and full case management on mobile. Integrated CRM and legal document tools (Clio, DocuSign) with seamless cross-platform delivery across Android, iOS, and web. Stack: Kotlin · Android SDK · Swift · React Native · TypeScript · PHP 8 (Symfony) · AWS ECS Fargate · Firebase · Docker · CircleCI Result: Scalable white-label LegalTech SaaS · enterprise-grade security & data protection · consistent UX across all platforms and device types. 📡 Boarding Path (Smart Navigation, iOS) – Led the discovery phase for a native iOS indoor navigation platform. Conducted technical feasibility analysis, vendor evaluation (IndoorAtlas, beacons), UX design for complex indoor environments, and full documentation to launch development with zero guesswork. Stack: Swift · Native iOS · Python · Django · IndoorAtlas · AWS · PostgreSQL Result: Concept validated before a dollar was spent on development · technical risks eliminated upfront · market-ready iOS roadmap with full vendor alignment. 🏅 North Jersey Vipers (Sports, USA) – Built a cross-platform mobile app for a US sports club – enabling content sharing, team updates, and secure media storage for players, coaches, and parents. Delivered iOS + Android from a single React Native codebase within a tight budget and timeline. Stack: React Native · JavaScript · Nest.js · Node.js · AWS Result: Cost-optimized cross-platform delivery · secure content storage · minimized long-term maintenance overhead. 📱 Platforms & Frameworks React Native · Flutter · Expo Native iOS: Swift · SwiftUI · Objective-C Native Android: Kotlin · Java Progressive Web Apps (PWA) 🌐 Backend & APIs Node.js · Nest.js · PHP · Symfony · Python · Django REST APIs · GraphQL · WebSockets · Firebase Realtime Database ☁️ Cloud & Infrastructure AWS (ECS Fargate, Lambda, S3, RDS, CloudFront) GCP · Azure · Docker · Kubernetes CI/CD: Bitrise · CircleCI · GitHub Actions 🤖 AI Integration OpenAI GPT · Vector Search · AI-powered mobile features LLM-based content personalization · Intelligent recommendations AI chatbot integration for mobile apps 🔗 Mobile Integrations Stripe · Clio · DocuSign · IndoorAtlas Firebase Push Notifications · WebRTC (video consultations) App Store & Google Play – full submission and launch support 🔐 Security & Compliance HIPAA-aware mobile development · GDPR-compliant data handling Secure messaging · E-signing · Enterprise-grade authentication Biometric auth · End-to-end encryption Why teams choose us: ✅ Full platform coverage – React Native, Flutter, Native iOS (Swift) & Native Android (Kotlin) from one team, no handoffs ✅ 330+ engineers – backend, DevOps, QA, and UI/UX always available alongside mobile development, so you never hit a skills gap ✅ 2,250+ delivered projects across HealthTech, LegalTech, FoodTech, Sports, Wellness, and B2B SaaS ✅ Full-cycle delivery – from discovery and UX design to backend API, cloud infrastructure, and App Store submission ✅ AI-ready from day one – we integrate OpenAI, vector search, and intelligent features into mobile apps without slowing the timeline Send me a message – tell me about your app idea, and I'll respond within a few hours with a clear plan and honest timeline estimate.

Struggling to launch high-performance, scalable apps that boost user retention? My name is Ankit Jain, a 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐑𝐞𝐚𝐜𝐭, 𝐍𝐞𝐱𝐭.𝐣𝐬, 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞, 𝐚𝐧𝐝 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with 8+ 𝐲𝐞𝐚𝐫𝐬 experience, delivering apps that increase user retention by 𝟒𝟕% and accelerate project delivery by 𝟑𝟎%. 🚀 𝐇𝐎𝐖 𝐈 𝐂𝐀𝐍 𝐇𝐄𝐋𝐏 𝐘𝐎𝐔 📱 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Build high-performance, scalable apps for iOS and Android using React Native and Flutter, ensuring seamless user experiences. 🌐 𝐌𝐨𝐝𝐞𝐫𝐧 𝐖𝐞𝐛 & 𝐒𝐚𝐚𝐒 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 Develop responsive, SEO-friendly web apps with React.js, Next.js, and TypeScript tailored for your business needs. 🤖 𝐀𝐈-𝐃𝐫𝐢𝐯𝐞𝐧 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 Integrate AI features like ChatGPT, OCR parsing, and smart assistants to enhance app intelligence and efficiency. 🔗 𝐀𝐏𝐈 & 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 Secure and robust integration with Firebase, Supabase, and third-party APIs including payment gateways and real-time data services. ⚡ 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 & 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 Ensure fast, reliable app delivery with optimized code, CI/CD pipelines, and smooth app store deployments. ============================ 🌟 5-STAR REVIEWS 🌟 ❝I had the pleasure of working with Ankit for a bug fix on react native. I was in awe with his speed, yet maintaining an eye for detail and ensuring quality of work. He went above and beyond his specified role to ensure the work was completed. I wholeheartedly recommend Ankit, as a knowledgeable developer❞ – Mihir S. ❝Ankit has been an outstanding Senior NextJS Developer for our B2B SaaS project. From Day one, he refactored our codebase, navigating complex challenges in server-side rendering and API route management, which are notoriously tricky in NextJS. His implementation of industry best practices significantly enhanced our app's performance and scalability. On a personal level, Ankit is an enthusiastic and helpful teammate. He has mentored our junior developers, significantly uplifting our team's overall skill level and been a positive presence in our team meetings over slack. I enjoyed working with him and hope to work again soon!❞ – Saumik K. ❝Ankit was excellent with his work. Delivered timely. Highly recommend. His knowledge in React & Javascript realm is next to none.❞ – Ali Asger R. ============================ 🏅 CERTIFICATIONS & AWARDS 🎖 Certified React Js Developer 🎖 Certified Front-End Development Expert ============================ Explore my portfolio for detailed case studies and project successes. ============================ ➤ 𝗟𝗘𝗧'𝗦 𝗕𝗨𝗜𝗟𝗗 𝗬𝗢𝗨𝗥 𝗡𝗘𝗫𝗧 𝗔𝗣𝗣 Ready to create high-performance, AI-integrated web or mobile apps? 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 𝗺𝗲 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝘁𝗼𝗱𝗮𝘆 and let's turn your vision into reality! I typically respond within 4 hours and am available for urgent projects. ============================ 🛠️ 𝐓𝐎𝐎𝐋𝐒 & 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐘 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 • React.js • Next.js • TypeScript • Tailwind CSS • Material UI • ShadCN • Radix UI 𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • React Native • Flutter • Expo 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐒𝐚𝐚𝐒 • Node.js • Express.js • Firebase • Supabase • AWS 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 • OpenAI API • GPT-powered features • OCR parsing 𝐒𝐭𝐚𝐭𝐞 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 • Redux Toolkit • Context API • MobX 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 & 𝐕𝐞𝐫𝐬𝐢𝐨𝐧 𝐂𝐨𝐧𝐭𝐫𝐨𝐥 • Jest • React Testing Library • Cypress • Git • GitHub • GitLab • Bitbucket 🎯 𝗟𝗲𝘁’𝘀 𝘀𝗰𝗵𝗲𝗱𝘂𝗹𝗲 𝗮 𝗳𝗿𝗲𝗲 𝟯𝟬-𝗺𝗶𝗻𝘂𝘁𝗲 𝗱𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘆 𝗰𝗮𝗹𝗹 𝘁𝗼 𝗮𝗹𝗶𝗴𝗻 𝗼𝗻 𝘆𝗼𝘂𝗿 𝗴𝗼𝗮𝗹𝘀 𝗮𝗻𝗱 𝘁𝗶𝗺𝗲𝗹𝗶𝗻𝗲. 𝐊𝐄𝐘𝐖𝐎𝐑𝐃𝐒: React, Node.js, Next.js,React Native, Flutter, Cross mobile app, SaaS Development, Microservices, Full-Stack Developer, Web App Development, Scalable APIs, Responsive Design, MongoDB, SQL, Tailwind, E-commerce Development, JavaScript, TypeScript, Clean Code, Agile Development, Cross-Platform Solutions, Full-Stack Engineer, MVP Development, Performance Optimization, API Integration, Frontend Engineer, Backend Specialist.

Hi, I’m Otabek – a Senior Mobile Engineer with 5+ years of experience building production-ready iOS, Android, and cross-platform applications for startups and growing businesses. ✔️ 100% Job Success Score 📈 ✔️ Top Rated - by Upwork Top 10% ✔️ Future Engineers National Competition Winner 🏆 ✔️ 5+ years of Experience in Mobile App Development ✔️ 24/7 Availability I specialize in turning ideas into polished mobile products with clean architecture, smooth user experiences, and scalable code. Whether it’s building a new app from scratch, improving an existing codebase, integrating AI, or preparing an app for the App Store, I focus on delivering solutions that are reliable and built to last. What I build • Native iOS Apps (Swift, SwiftUI, UIKit) • React Native Applications • Flutter Applications • AI-Powered Mobile Apps • AI-Assisted App Development • FlutterFlow Projects • Lovable & Base44 Applications • MVP Development • Existing App Improvements • Legacy Code Modernization • ARKit & 3D Scanning Applications • Firebase & Backend Integrations Technical Expertise Swift • SwiftUI • UIKit • React Native • Flutter • FlutterFlow • Lovable • Base44 • Cursor • Windsurf • Claude Code • GitHub Copilot • Firebase • Supabase • PostgreSQL • REST APIs • Node.js • OpenAI • Claude API • Gemini API • Core ML • Vision • ARKit • StoreKit 2 • RevenueCat • Git • TestFlight Industries I’ve Worked With * AI & Productivity * Health & Wellness * Social & Community Apps * Marketplace Platforms * Business Management Systems * On-Demand Services * AR / 3D Scanning * Subscription-Based Apps Why clients work with me * Clean, scalable, production-ready code * Experience working with existing codebases * Pixel-perfect UI implementation from Figma * Fast issue investigation and debugging * Long-term product mindset, not just task completion * Rescue unfinished AI-generated apps * Productionize MVPs built with no-code & AI tools * Performance optimization * Clear communication and regular updates Many founders today start their products using AI tools like Lovable, FlutterFlow, Base44, Cursor, or Bolt.new. Those tools are great for getting started, but production apps require experienced engineering. I specialize in taking AI-generated or no-code projects to the finish line - improving architecture, fixing bugs, integrating APIs, adding missing features, optimizing performance, and preparing apps for successful App Store and Google Play releases. Let’s build something great.

I build production-ready mobile & web apps, e-commerce, live chat/video calling, real-time GPS tracking (Uber/Instacart-style), and more. Senior Full-Stack Developer, 10+ apps shipped to the App Store & Play Store. I specialize in React Native and Flutter for mobile (iOS & Android), and React.js/Next.js for web with backend development using Node.js, FastAPI (Python), Firebase, and Supabase to deliver complete, end-to-end solutions. I write clean, scalable code that's easy to maintain and ready to grow with your business. What I've built: - E-commerce apps with Stripe payment integration - Real-time chat & video calling apps (WebRTC, WebSockets) - Live GPS tracking & navigation systems (Google Maps API, route optimization) - Health & fitness apps using Google Health APIs - Admin dashboards and analytics portals (React.js) Tech stack: React Native, Flutter, React.js, Next.js, Node.js, FastAPI, Firebase, Supabase, Stripe, Google Maps API, Google Health Connect API, WebRTC, Redux/Zustand, Riverpod/Bloc/GetX. I focus on clear communication, fast turnaround, and code that passes technical reviews without issues. Whether you're a startup founder or a non-technical client with an idea, I'll help map it into a working product App Store/Play Store ready. Let's discuss your project, send me a message and let's get started.

I come from a strong math background, including national and international competitions, and later studied Computer Science at UNAM. Around the same time, I started my career co-founding a consulting company, where I began building internet-based applications in the early days of the web, and later transitioned into mobile as smartphones became the dominant platform for real users. After the .com collapse, I continued working as an independent consultant, collaborating with different organizations such as Avaya, Microsoft, and Mexican Customs. Over more than 20 years, I have built a large number of web and mobile applications, and in recent years I've been focused mainly on cross-platform mobile products in both React Native and Flutter, mobile-first SaaS with iOS and Android clients, and consumer applications shipped to the App Store and Google Play. My experience goes from low-level programming (microcontrollers, assembly, Linux device drivers) to high-level mobile system design, including native module bridges, offline-first synchronization, background task scheduling, push notification pipelines, and AI-driven features running directly on device. My current stack covers both major cross-platform frameworks. On React Native and Expo I ship consumer apps end to end, with Supabase, Stripe, in-app purchases, native module integration, and OTA updates via EAS. On Flutter I work in Dart with the standard widget tree, Riverpod or BLoC for state depending on codebase complexity, Dio for networking, Freezed for immutable models, and platform channels when I need to bridge to native iOS or Android code directly. On the backend I use Laravel or Ruby on Rails when a full end-to-end delivery is needed. I've also led teams and worked as lead developer and mobile architect in multiple projects. I'm comfortable taking full ownership of a mobile product or integrating into an existing mobile team, and equally comfortable recommending React Native or Flutter based on what fits your product rather than what fits my habit. I focus on writing code that is clean, stable, and maintainable. The goal is not just to deliver an app that runs on the simulator, but one that keeps working in production, across a fragmented device base, through OS updates, and over years of iteration. If you need someone who can design and build a mobile product properly, without unnecessary complexity, whether in React Native or Flutter, I can help.

𝐀𝐥𝐥 𝟓-𝐒𝐭𝐚𝐫 𝐑𝐞𝐯𝐢𝐞𝐰𝐬.🌟 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 🌟 • 𝐓𝐨𝐩 𝟏𝟎% 𝐨𝐟 𝐔𝐩𝐰𝐨𝐫𝐤 𝐅𝐫𝐞𝐞𝐥𝐚𝐧𝐜𝐞𝐫𝐬 🥇 A Senior Fullstack & Mobile Developer with over 12 years of experience delivering high-quality software solutions for web and mobile applications. I have successfully built and launched 30+ mobile apps, many of which are live in the App Store and Google Play. I do not just write code — I help clients move their product from idea, MVP, or existing web app to a real mobile app that can be tested, submitted, and launched. I help founders, startups, and businesses build, fix, and launch production-ready mobile apps for the App Store and Google Play. With 12+ years of software development experience and 30+ launched mobile apps, I specialize in iOS, Android, cross-platform mobile development, backend integration, in-app purchases, authentication, AI-powered features, and app store release support. My strongest areas include: ✅ iOS development with Swift, SwiftUI, UIKit, and Objective-C ✅ Android and cross-platform apps with Flutter, React Native, Expo, and Capacitor ✅ App Store and Google Play submission, TestFlight, internal testing, closed testing, and review issue fixes ✅ In-App Purchases, subscriptions, RevenueCat, Superwall, Stripe, and payment flows ✅ Supabase, Firebase, Firestore, PostgreSQL, MySQL, MongoDB, and backend integrations ✅ Apple Sign-In, Google Sign-In, Firebase Auth, Supabase Auth, and social login flows ✅ AI app development using OpenAI API, Claude, DeepSeek, and other AI integrations ✅ Push notifications, APNS, FCM, maps, background location, Bluetooth, and real-time features ✅ Existing app maintenance, performance improvement, bug fixing, and production issue resolution I can help you with: - Turning web apps, Lovable, Bolt, Replit, FlutterFlow, Base44, or existing MVPs into iOS and Android apps - Building complete iOS and Android apps from scratch based on designs created in Figma, Adobe XD, or Sketch - Turning UI/UX designs into pixel-perfect, responsive mobile applications - Developing complete backend systems, databases, APIs, authentication, and admin dashboards - Handling the complete development lifecycle—from UI implementation and backend development to testing and App Store/Google Play release - Preparing iOS and Android builds for TestFlight and Google Play testing - Fixing App Store and Google Play rejection issues - Setting up subscriptions, paywalls, free trials, and restore-purchase flows - Integrating Supabase, Firebase, RevenueCat, Stripe, OpenAI, and other third-party services - Building AI-powered mobile features such as chat, analysis, content generation, voice interaction, and automation - Improving existing apps, fixing production issues, and preparing them for release Tech stacks I work with: Mobile: Swift, SwiftUI, UIKit, Objective-C, Flutter, Dart, React Native, Expo, Capacitor, Android Backend: Java, Spring Boot, Go, Gin, Python, REST APIs, WebSocket, microservices Database & Cloud: Supabase, Firebase, Firestore, PostgreSQL, MySQL, MongoDB, SQLite, Redis, Google Cloud, AWS Payments & Subscriptions: RevenueCat, Superwall, Stripe, Apple IAP, Google Play Billing AI & Automation: OpenAI API, Claude, DeepSeek, AI-assisted app features, AI workflow integration I focus on clean implementation, reliable communication, and practical solutions that help your product move forward. Whether you need to launch a new app, fix an existing one, add subscriptions, solve login issues, or pass app review, I can help you get it done properly. If you need a developer who understands both mobile development and the full release process, I’d be happy to help.