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Sagira G.
$20/hr
100% Job Success
$700K+ earned
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Hello there! 👋 𝐖𝐚𝐧𝐭 𝐭𝐨 𝐭𝐮𝐫𝐧 𝐲𝐨𝐮𝐫 𝐢𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐯𝐞 𝐢𝐝𝐞𝐚𝐬 𝐢𝐧𝐭𝐨 𝐫𝐞𝐚𝐥𝐢𝐭𝐲 𝐰𝐢𝐭𝐡 𝐚 𝐝𝐲𝐧𝐚𝐦𝐢𝐜 𝐚𝐧𝐝 𝐫𝐞𝐬𝐮𝐥𝐭-𝐨𝐫𝐢𝐞𝐧𝐭𝐞𝐝 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫? 𝐋𝐨𝐨𝐤 𝐧𝐨 𝐟𝐮𝐫𝐭𝐡𝐞𝐫! I am a highly skilled, result-oriented mobile app developer with vast experience in turning innovative ideas into efficient, eye-catching, and user-friendly applications. I specialize in developing top-notch, custom mobile apps for both iOS and Android platforms, utilizing the latest technologies and trends. My ultimate goal is to provide you with reliable, innovative, and enjoyable digital solutions that elevate your business. 𝐌𝐲 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐬 : ➤ Native Mobile App Development: Swift (iOS), Java & Kotlin (Android) ➤ Cross-platform Mobile App Development: React Native & Flutter ➤ Backend Development: Node.js, Express.js, PHP, Laravel, and Firebase ➤ APIs & Web Services: RESTful API, GraphQL, JSON, and SOAP ➤ Databases: SQLite, MySQL, PostgreSQL, and MongoDB ➤ UI/UX Design: Adobe XD, Sketch, Figma, and Photoshop ➤ Version Control & CI/CD: Git, GitHub, Bitbucket, and GitLab ➤ Agile & Scrum workflow methodologies 𝐌𝐲 𝐆𝐞𝐧𝐞𝐫𝐚𝐥 𝐏𝐫𝐨𝐯𝐞𝐧 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐩𝐫𝐨𝐜𝐞𝐬𝐬 : ➤ Project Understanding 🤔 - Detailed discussions to grasp your mobile app needs and vision ➤ UX/UI Design ✍️ - Crafting an exquisite design that prioritizes user experience ➤ Development 🔨 - Bringing your idea to life using cutting-edge tech & best practices ➤ Testing & QA ✅ - Rigorous checks for seamless functionality and smooth performance ➤ Deployment 🚀 - Launch to the respective app stores & ongoing maintenance 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈'𝐯𝐞 𝐖𝐨𝐫𝐤𝐞𝐝 𝐖𝐢𝐭𝐡 : ➤ E-commerce and Retail ➤ Healthcare and Fitness ➤ Finance and Fintech ➤ Travel and Hospitality ➤ Social Media and Entertainment ➤ Education and e-Learning ➤ Real Estate and Construction, and many more! 𝗪𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞? : ✅ Expertise: A proven track record of successful mobile app development projects ✅ Passion: I genuinely love what I do, and am constantly upskilling and learning ✅ Communication: Fluent English speaker and quick response rate ✅ Dedication: Ensuring deliverables are always on time 🕒 and within budget 💰 ✅ Satisfaction: Unwavering commitment to ensuring you are 100% satisfied Ready to turn your dream into a stunning mobile app? 📱 💡 𝐋𝐞𝐭'𝐬 𝐠𝐞𝐭 𝐬𝐭𝐚𝐫𝐭𝐞𝐝! 🚀 📩 Don't hesitate to hit the "𝐇𝐢𝐫𝐞 𝐌𝐞" button, send a message, or invite me to your project - and I'll be more than happy discuss your app idea and provide a custom-tailored proposal just for you. Remember, a small conversation can lead to extraordinary outcomes! 😊
Differenz Solutions
Associated with
Differenz Solutions
$3M+
earned
Dipak K.
$25/hr
100% Job Success
$400K+ earned
Available now
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🏆 𝗧𝗢𝗣 𝟭% 𝗨𝗣𝗪𝗢𝗥𝗞 𝗙𝗥𝗘𝗘𝗟𝗔𝗡𝗖𝗘𝗥 💰 $𝟭𝗠+ 𝗘𝗔𝗥𝗡𝗘𝗗 🤝 𝗛𝗘𝗟𝗣𝗘𝗗 𝗧𝗢 𝗥𝗔𝗜𝗦𝗘 $𝟏𝟬𝗠+ 𝗙𝗨𝗡𝗗𝗜𝗡𝗚 𝗙𝗢𝗥 𝗠𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 🚀 Top Rated Plus | Flutter Expert | Mobile App Development (iOS & Android) | Full-Stack & Web Apps | AI & BLE 🎯𝗪𝗛𝗢 𝗜 𝗪𝗢𝗥𝗞 𝗪𝗜𝗧𝗛 I help startups, founders, and businesses build world-class Mobile Apps, Websites, SaaS Platforms, and AI-powered products that drive growth, secure funding, and scale globally. Most developers build apps — I build products that generate real business results. If you need an expert Mobile App Developer, Full Stack Developer, Flutter Developer, iOS Developer, Android Developer, React Native Developer, or Web Developer who can take your idea from concept to launch, you’re in the right place. 𝗠𝗬 𝗣𝗥𝗢𝗩𝗘𝗡 𝗧𝗥𝗔𝗖𝗞 𝗥𝗘𝗖𝗢𝗥𝗗 𝗙𝗢𝗥 𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘 🏆 Top Rated Plus (Top 1%) on Upwork 💰 $1M+ earned | 13,000+ hours 📈 $10M+ raised by my clients 📲 5M+ Active users ⭐ 100% Job Success Score 🔁 90%+ repeat clients 🌍 500+ clients across US, Europe, Middle East & Globally 📱 MOBILE APP DEVELOPMENT • Native iOS: Swift, SwiftUI, Objective-C, Xcode • Native Android: Kotlin, Java, Android Studio • Cross-Platform: Flutter, FlutterFlow, React Native, Dart 🌐 WEB DEVELOPMENT • Frontend: React.js, Next.js, TypeScript, Tailwind CSS, HTML5, CSS3, JavaScript • Backend: Node.js, Express.js, Nest.js, PHP, Laravel, RESTful APIs, GraphQL, WebSockets • E-Commerce: Plugin & theme development, payment gateway integration, custom solutions • WordPress: Custom theme & plugin development, WooCommerce, Elementor, ACF • Other CMS: Webflow, Strapi, Contentful, Sanity, Ghost • E-Commerce Platforms: WooCommerce, BigCommerce — theme & app customization ⚙️ NO-CODE / LOW-CODE PLATFORMS • AI-Powered Builders: Lovable.AI, Bolt.new, Cursor, v0 by Vercel, Replit, Copilot, Claude/Anthropic • App Builders: FlutterFlow, Bubble, Glide, Adalo • Automation: Zapier, Make (Integromat), n8n ☁️ BACKEND & CLOUD SERVICES • Firebase: Firestore, Realtime DB, Auth, Storage, Cloud Functions • AWS: EC2, Lambda, S3, Amplify, Lightsail • GCP | Microsoft Azure | Supabase | Vercel | Hostinger 🗄️ DATABASE Firestore | MySQL | PostgreSQL | MongoDB | SQLite | Realm | Core Data | Supabase 🤖 AI & AUTOMATION • ChatGPT API & OpenAI Integration • Natural Language Processing (NLP) • Voice & Speech AI • Predictive Analytics 🎨 UI/UX DESIGN Figma | Sketch | Adobe XD | InVision | SwiftUI | Jetpack Compose | Flutter Widgets | Material UI 🔑 KEY FEATURES & INTEGRATIONS ✔️ Secure User Authentication & Social Logins (Google, Apple, Facebook, Twitter, LinkedIn) ✔️ Payment Gateways: Stripe, PayPal, Razorpay, Apple Pay, Plaid, In-App Purchases & Subscriptions ✔️ Real-Time Chat & Messaging (Twilio API, Firebase Chat) ✔️ Push Notifications | Video Calling | WebRTC ✔️ Maps & Geolocation: MapKit, Mapbox, Google Maps ✔️ Health & Fitness: HealthKit, Google Fit ✔️ Analytics: Firebase Analytics, Mixpanel, Crashlytics, Google Analytics ✔️ QA & Testing: Unit Testing, Integration Testing, Regression Testing ✔️ Project Tools: Git, GitHub, Bitbucket, JIRA, Trello, Asana 🏗️ INDUSTRIES I HAVE DELIVERED IN E-Commerce | Fintech & Banking | Health & Fitness | Social Networking & Dating | On-Demand Services | Food Delivery | Ride Booking | Real Estate | SaaS | Education & E-Learning | Media & Entertainment | Streaming & Audio | Healthcare | Logistics & Transport | Marketplace | Travel & Navigation | Wellness & Coaching | Legal Services | Event & Booking | Automotive | Fashion & Lifestyle | Hospitality 🔍 KEYWORDS Mobile App Developer · iOS App Developer · Android App Developer · Flutter Developer · React Native Developer · FlutterFlow Developer · Swift Developer · Kotlin Developer · Full Stack Developer · Web Application Developer · SaaS Developer · MERN Stack Developer · Firebase Developer · AWS Developer · Node.js Developer · React.js Developer · Next.js Developer · API Integration · ChatGPT Integration · AI App Developer · Lovable.AI · Bolt.new · No-Code Developer · Low-Code Developer · FlutterFlow · Bubble · Webflow · WordPress Developer · WooCommerce · Shopify · Strapi · Contentful · CMS Development · Plugin Development · Theme Development · Fintech App Developer · E-Commerce App Developer · Dating App Developer · Ride Booking App Developer · On-Demand App Developer · Cross-Platform App Developer · RESTful API · GraphQL · TypeScript · Supabase · Payment Gateway Integration · In-App Purchases · Push Notifications · HealthKit · MapKit · Mapbox · Alamofire · Twilio · Google Analytics · QA Testing · Unit Testing · Regression Testing · Figma · UI/UX Design
Dipak K. has worked .
Devsto – Top Rated Plus Agency | Mobile App Development | Web Development | AI & SaaS Solutions | eCommerce Experts
Associated with
Devsto – Top Rated Plus Agency | Mobile App Development | Web Development | AI & SaaS Solutions | eCommerce Experts
Salman K.
$20/hr
100% Job Success
$10K+ earned
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Are you looking for a highly experienced Software Developer to build, scale, optimize, or maintain your application? You're in the right place! I am a Senior React Native Mobile App Developer with 6+ years of experience building high-performance, scalable, and production-ready mobile applications for startups, businesses, SaaS platforms, eCommerce brands, logistics companies, healthcare solutions, social media platforms, and enterprise clients. 🚀 My Expertise: ✔ React Native Development ✔ React Native CLI ✔ Expo Development ✔ Expo Router ✔ React Navigation ✔ TypeScript ✔ JavaScript (ES6+) ✔ Redux Toolkit ✔ Zustand ✔ React Query ✔ Context API ✔ Native Modules ✔ Cross-Platform App Development ✔ Android App Development ✔ iOS App Development ✔ Mobile App Architecture ✔ MVP Development ✔ Startup Apps ✔ SaaS Applications ✔ Enterprise Solutions ✔ Clean Architecture ✔ Offline-First Apps ✔ High-Performance Mobile Apps 🎨 UI/UX Development: ✔ Pixel-Perfect UI ✔ Responsive Design ✔ Material Design ✔ Cupertino Design ✔ Dark Mode ✔ Custom Animations ✔ React Native Reanimated ✔ Gesture Handler ✔ Lottie Animations ✔ Modern User Experience 🔥 Firebase & Backend: ✔ Firebase Authentication ✔ Firestore ✔ Realtime Database ✔ Firebase Cloud Messaging (FCM) ✔ Firebase Analytics ✔ Crashlytics ✔ Firebase Storage ✔ Dynamic Links ✔ Supabase Integration ✔ AWS Integration ✔ REST APIs ✔ GraphQL ✔ Third-Party APIs ✔ Custom Backend Integration 🔐 Authentication & Security: ✔ Google Authentication ✔ Apple Authentication ✔ Social Login ✔ Email Authentication ✔ OTP Verification ✔ Email Verification ✔ Face ID ✔ Touch ID ✔ JWT Authentication ✔ OAuth ✔ Secure Authentication ✔ Data Encryption 📍 Maps & GPS: ✔ Google Maps Integration ✔ Mapbox ✔ GPS Tracking Apps ✔ Real-Time Tracking ✔ Geofencing ✔ Route Optimization ✔ Fleet Management ✔ Delivery Apps ✔ Ride-Hailing Apps ✔ Logistics Solutions ✔ Navigation Apps 💳 Payments & Subscriptions: ✔ RevenueCat Integration ✔ In-App Purchases (IAP) ✔ Auto-Renewable Subscriptions ✔ Subscription Management ✔ Stripe Integration ✔ Apple Pay ✔ Google Pay ✔ PayPal Integration ✔ Secure Payment Processing 📲 Notifications & Engagement: ✔ Push Notifications ✔ Firebase Notifications ✔ OneSignal Integration ✔ APNS Setup ✔ Local Notifications ✔ Scheduled Notifications ✔ Deep Linking ✔ Universal Links ✔ Dynamic Links 💬 Real-Time Features: ✔ Live Chat ✔ Messaging Apps ✔ WebSocket Integration ✔ Socket IO ✔ Real-Time Updates ✔ Social Networking Apps ✔ Community Platforms 🎥 Media & Device Features: ✔ Camera Integration ✔ QR Code Scanner ✔ Barcode Scanner ✔ Image Upload ✔ Video Upload ✔ Audio Streaming ✔ Video Streaming ✔ Podcast Apps ✔ PDF Generation ✔ File Upload & Download 🤖 AI & Advanced Technologies: ✔ ChatGPT Integration ✔ OpenAI API Integration ✔ AI Chatbots ✔ AI-Powered Apps ✔ Speech-to-Text ✔ Text-to-Speech ✔ Machine Learning Features ✔ Smart Recommendations ✔ Augmented Reality (AR) ✔ ARKit ✔ ARCore ⚡ Optimization & Maintenance: ✔ App Performance Optimization ✔ Memory Leak Fixes ✔ App Size Optimization ✔ Crash Fixing ✔ Bug Fixing ✔ React Native Upgrades ✔ Expo SDK Upgrades ✔ Code Refactoring ✔ Long-Term Maintenance 🚀 Deployment & Publishing: ✔ Google Play Store Deployment ✔ Apple App Store Deployment ✔ TestFlight Distribution ✔ Play Console Management ✔ App Store Connect ✔ Fastlane Automation ✔ CI/CD Pipelines ✔ App Store Optimization (ASO) Why choose me? ⭐ 6+ Years React Native Experience ⭐ Senior React Native Developer ⭐ Clean & Scalable Code ⭐ Fast Communication ⭐ On-Time Delivery ⭐ Long-Term Support ⭐ Business-Focused Solutions ⭐ High-Quality Mobile Applications Whether you need a React Native app, Expo app, MVP, startup product, enterprise solution, bug fixing, Firebase integration, RevenueCat subscriptions, Stripe payments, GPS tracking app, AI-powered application, or complete Android & iOS mobile app development, I can turn your idea into a successful mobile product. React.js Web Development build fast, responsive, scalable web applications using modern frontend technologies. My expertise includes: React.js Development Next.js Development JavaScript Development TypeScript Development Redux Context API Tailwind CSS Responsive Web Design Dashboard Development SaaS Platforms Admin Panels API Integration Authentication Systems Performance Optimization Node.js Express.js Firebase Supabase MongoDB PostgreSQL REST APIs Third-party API integrations Authentication systems Cloud Functions => Electron.js Desktop App Development I build cross-platform desktop applications using Electron.js for: Windows Applications macOS Applications Linux Applications Desktop Automation Tools Internal Business Software Custom Desktop Platforms Backend Development I understand both the technical side and business side of product development. My goal is not just writing code — it’s helping clients build products that grow successfully. Let’s discuss your project and build something amazing together
Salman K. has worked .
Gunavant P.
$25/hr
100% Job Success
$100K+ earned
Offers consultations
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𝗔𝗜 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 | 𝗔𝗜 𝗖𝗵𝗮𝘁𝗯𝗼𝘁 | 𝗔𝗥/𝗩𝗥 | 𝗠𝗟 | 𝗖𝗹𝗼𝘂𝗱 𝗘𝘅𝗽𝗲𝗿𝘁 🥇 Rewarded as 🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟U𝗦🏆 by Upwork 🕐 2500+ hours and still counting ✅ 100% Job Success (Client Satisfaction Ratio) ✅ 99% of Clients Recommended working with me ✅ 94% Long-term Repeat Clients ✅ 8+ Years Of Experience ✅ 40+ Projects Delivered ✅ High-Quality Work ✅ Cost-Effective ✅ Fluent English Verified During the last 8+ years, I have developed a wide range of Android and iOS applications, including those utilizing AI-based solutions, AI-powered chatbots, AR/VR integrations, and intelligent automation to stay ahead of evolving user needs. App Expertise Includes: 𝗙𝗼𝗼𝗱 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆, 𝗢𝗻-𝗱𝗲𝗺𝗮𝗻𝗱 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀, 𝗛𝗼𝗺𝗲 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀, 𝗛𝗮𝗻𝗱𝘆𝗺𝗮𝗻, 𝗦𝗮𝗹𝗼𝗻, 𝗧𝗮𝘅𝗶, 𝗥𝗶𝗱𝗲 𝗵𝗮𝗶𝗹𝗶𝗻𝗴, 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲, 𝗗𝗮𝘁𝗶𝗻𝗴, 𝗙𝗶𝗻𝘁𝗲𝗰𝗵, 𝗧𝗿𝗮𝘃𝗲𝗹, 𝗠𝘂𝘀𝗶𝗰 & 𝗩𝗶𝗱𝗲𝗼 𝘀𝘁𝗿𝗲𝗮𝗺𝗶𝗻𝗴, 𝗛𝗲𝗮𝗹𝘁𝗵 & 𝗙𝗶𝘁𝗻𝗲𝘀𝘀, 𝗧𝗲𝗹𝗲𝗺𝗲𝗱𝗶𝗰𝗶𝗻𝗲, 𝗥𝗲𝗮𝗹 𝗘𝘀𝘁𝗮𝘁𝗲, 𝗖𝗵𝗮𝘁 & 𝗠𝗲𝘀𝘀𝗮𝗴𝗶𝗻𝗴, 𝗦𝗼𝗰𝗶𝗮𝗹 𝗺𝗲𝗱𝗶𝗮, 𝗢𝗻𝗹𝗶𝗻𝗲 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻, 𝗚𝗿𝗼𝗰𝗲𝗿𝘆 𝗼𝗿𝗱𝗲𝗿𝗶𝗻𝗴 — many powered with AI/ML modules and voice/chatbot integration. Digital Transformation & Emerging Tech Solutions Expert (Web/Mobile Apps, AI Solutions, AI Chatbots, AR/VR, IoT, Cloud, DevOps, DataOps, RPA, and Enterprise Mobility) With over a decade of industry expertise, I specialize in helping startups and enterprises implement smart, scalable, and future-ready tech solutions leveraging the latest advancements in AI, Machine Learning, Augmented & Virtual Reality, and Automation. As the CEO of VGD Technologies, I have been instrumental in: ✦ 1100+ digital transformation projects (apps, software, platforms) ✦ 700+ global clients including CISCO, INTEL, TOTAL CARE ✦ Mentored 400+ IT professionals ✦ 98% client satisfaction & retention ✦ Mastery of 35+ technologies ✦ 10k+ hours billed ✦ Agile-first approach & code quality assurance ✦ Trending Technical Skills & Capabilities ✦ 🌐 𝗠𝗼𝗯𝗶𝗹𝗲 & 𝗪𝗲𝗯 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 iOS, Android, Flutter, React Native AR/VR Development, BLE, iBeacon, NFC, AI Chatbot Integration, Flutter with AI Modules 🤖 𝗔𝗿𝘁𝗶𝗳𝗶𝗰𝗶𝗮𝗹 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝗰𝗲 & 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 AI Chatbots, NLP, OCR, Deep Learning, Computer Vision, Video Analytics, MLOps, AI-Powered Predictive Systems 🧠 𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 & 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 Python, Pandas, PyTorch, TensorFlow, Apache Airflow, Kafka, AWS Kinesis, Tableau, Power BI 🔗 𝗜𝗼𝗧 & 𝗘𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗔𝗜 MQTT, AWS Greengrass, Arduino, Raspberry Pi, Microcontroller Programming, Edge AI ☁️ 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀 AWS, Docker, Kubernetes, Terraform, CI/CD, DevSecOps, Cloud Migrations, Serverless Architecture 🧰 𝗔𝗱𝗱𝗶𝘁𝗶𝗼𝗻𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 WebRTC, XMPP, GraphQL, Firebase, Twilio, OpenCV, GPU Image, Alexa/Google Assistant Integration If you're ready to build something truly modern and intelligent, powered by AI, AR/VR, and next-gen technologies—let’s connect and make it happen. I'm here to help transform your vision into a powerful reality.
Gunavant P. has worked .
VGD Technologies
Associated with
VGD Technologies
$100K+
earned
Umer I.
$35/hr
100% Job Success
$200K+ earned
Available now
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I believe in empowering others with steady support so they can grow into their full potential. 🚀 340+ mobile apps, backend systems, APIs, and SaaS platforms delivered 🏆 Top Rated Plus on Upwork | 100% Job Success | 88% Recurring Clients 📱 Apps with 5M+ active users | 💼 Projects backed by Stanford & global startups 🌐 Multi-tenant SaaS systems across fintech, healthcare, e-commerce, and education 🔐 Enterprise-grade security, real-time performance, and cloud-native deployments Looking for a full-stack developer who delivers both seamless mobile and web experiences along with robust backend systems? You’ve found one. I specialize in mobile and web application development along with backend infrastructures that are secure, scalable, and built for real-world growth. From MVPs to enterprise systems, I bring a complete skill set in Flutter, React Native, Kotlin, Swift, Java, Dart, ASP.NET, .NET Core, C#, and cloud DevOps to help you launch and scale with confidence. 🧰 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 & 𝐓𝐨𝐨𝐥𝐬 Flutter, React Native, Kotlin, Swift, Java, Dart .NET Core, C#, ASP.NET, Node.js REST APIs, GraphQL, gRPC, WebSockets, SignalR AWS, Azure, Docker, Kubernetes, Lambda, App Services SQL Server, PostgreSQL, MongoDB, Firebase Figma, GitHub, GitLab CI/CD, Jenkins OAuth2, JWT, SSO, Biometric Login Stripe, Apple Pay, Twilio, OpenAI, ERP/CRM integrations 📱 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Cross-platform and native app development with responsive UI/UX, custom animations, real-time features, and secure payment flows 🛠️ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐀𝐏𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Clean, versioned APIs and backend services using .NET Core and Node.js, built with cloud scalability, security, and performance in mind ☁️ 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 Dockerized services, Kubernetes, CI/CD pipelines, and cloud deployments on AWS and Azure 🔐 𝐀𝐮𝐭𝐡𝐞𝐧𝐭𝐢𝐜𝐚𝐭𝐢𝐨𝐧 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 SSO, 2FA, biometric login, and seamless integrations with Stripe, Twilio, OpenAI, CRMs, and more 📊 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐃𝐞𝐬𝐢𝐠𝐧 & 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 Efficient, secure data storage with indexing, replication, backups, and SQL/NoSQL support 📦 𝐋𝐨𝐧𝐠-𝐓𝐞𝐫𝐦 𝐌𝐚𝐢𝐧𝐭𝐞𝐧𝐚𝐧𝐜𝐞 & 𝐒𝐜𝐚𝐥𝐢𝐧𝐠 Post-launch support, monitoring, app store deployment, bug fixing, and feature updates Whether you're building a mobile-first product, a backend-heavy SaaS platform, or a fully integrated cloud system, I bring the skills and experience to deliver real-world results that scale. 📩 Let’s connect and build something exceptional. Drop a message.
Umer I. has worked .
Devruptors Inc
Associated with
Devruptors Inc
$300K+
earned
Md Ariful I.
$22/hr
93% Job Success
$10K+ earned
Available now
Start of list.
End of list.
🥇MVP development | Full-cycle mobile app development | Available NOW ⚡HIRE ME IF YOU WANT iOS & Android App development that gets 5 star review and generates revenue for YOU. I'm Ariful, your reliable mobile app developer with 7+ years of experience in Flutter and React Native mobile app development. I've been building real production systems for real clients long before Upwork, which means when you hire me, you're not getting someone who learned from tutorials. You're getting a developer who's been battle-tested in professional environments, on tight deadlines, with zero room for excuses. Before any code is written, I create a proper architecture plan, document business requirements, system architecture, database design, and a Figma prototype that you approve first. This alone 𝗲𝗹𝗶𝗺𝗶𝗻𝗮𝘁𝗲𝘀 𝟴𝟬% 𝗼𝗳 𝘁𝗵𝗲 𝗿𝗲𝘄𝗼𝗿𝗸 that bleeds budgets dry on most projects. 📱 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 → Flutter Mobile App Development: iOS & Android, one codebase, native-level performance → React Native App Development: fast, scalable, battle-tested cross-platform apps → Native App Development: Swift (iOS) & Kotlin (Android) when performance demands it → Cross-Platform App Development: one app, every device, zero compromise → MVP Development: from idea to App Store in weeks, not months → AI Mobile App Development: ChatGPT, OpenAI API, intelligent features built to production standard → Android App Development & iOS Development → App Store & Google Play deployment, ASO, and post-launch maintenance 🛠️ 𝐌𝐎𝐁𝐈𝐋𝐄 𝐀𝐏𝐏 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 𝐏𝐑𝐎𝐂𝐄𝐒𝐒 ➮ Define project architecture & User Flow ➮ Design UI UX for mobile app/web app and admin dashboard ➮ Frontend development of mobile app ➮ Backend Development & API Integrations ➮ Test app and deploy to iOS & Android ⚙️ 𝗙𝗨𝗟𝗟 𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞 ◉ 𝗠𝗼𝗯𝗶𝗹𝗲 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Flutter · React Native · Swift · Kotlin · Dart · Java · Objective-C ◉ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Node.js · Express.js · PHP · Laravel · REST API · GraphQL ◉ 𝗔𝗜 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: OpenAI API · ChatGPT Integration · AI Chatbot · Predictive Analytics · TensorFlow ◉ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲: Firebase · Firestore · MongoDB · PostgreSQL · MySQL ◉ 𝗖𝗹𝗼𝘂𝗱: AWS · Google Cloud (GCP) · Azure ◉ 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 : Stripe · PayPal · In-App Purchases · Apple Pay · Google Pay ◉ 𝗦𝘁𝗮𝗻𝗱𝗮𝗿𝗱𝘀: HIPAA Compliant · GDPR · Agile/Scrum · Git · App Store Optimization (ASO) 🎯 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 𝗜'𝗩𝗘 𝗦𝗛𝗜𝗣𝗣𝗘𝗗 𝗙𝗢𝗥 · Healthcare & Medical · E-commerce & Marketplace · FinTech & Banking · Social Media & Video · EdTech & E-Learning · Food Delivery & On-Demand · Fitness & Wellness · Streaming & Media · Real Estate · Travel & Booking · Safety & Emergency · Event Management 💡 𝗪𝗛𝗔𝗧 𝗠𝗔𝗞𝗘𝗦 𝗠𝗘 𝗗𝗜𝗙𝗙𝗘𝗥𝗘𝗡𝗧 ✅ I document before I develop—the scope is locked before a line of code is written ✅ I design before I build—Figma prototype approved by you first, always ✅ I test before I deliver—real device testing across iOS and Android, every time ✅ I respond in under 30 min—every day, no exceptions ✅ I stay after launch —maintenance, updates, and new features on demand ✅ I write clean, documented code—your next developer will thank you My clients don't just leave 5-star reviews. They come back. Because when you find a Mobile App Developer who communicates clearly, delivers consistently, and treats your project like it matters, you don't let them go. 📩 𝗟𝗘𝗧'𝗦 𝗧𝗔𝗟𝗞 𝗔𝗕𝗢𝗨𝗧 𝗬𝗢𝗨𝗥 𝗔𝗣𝗣 Message me with your idea rough notes, a full brief, or anything in between. I'll give you a clear scope, honest timeline, and realistic budget in our first conversation. 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 𝗺𝗲—𝗹𝗲𝘁'𝘀 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝘂𝘀𝗲𝗿𝘀 𝘄𝗶𝗹𝗹 𝗹𝗼𝘃𝗲. 𝗦𝗲𝗮𝗿𝗰𝗵 𝗺𝗲 𝗯𝘆: Mobile App Development · Mobile App Developer · Flutter Developer · React Native Developer · Cross-Platform App Development · iOS Development · Android App Development · Native App Development · AI Mobile App Development · MVP Development · App Development · Firebase · REST API · Node.js · MongoDB · OpenAI API · ChatGPT Integration · App Store Optimization · HIPAA Compliant · GDPR · E-commerce App · FinTech App · Flutter app developer · React Native app developer · iOS App Development · Android App
Md Ariful I. has worked .
Shaiq P.
$20/hr
100% Job Success
$10K+ earned
Available now
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Most Flutter developers will show you mockups and GitHub repos. I will show you 20+ apps you can download from the App Store right now and evaluate before you hire me. That is the difference. I build Flutter mobile apps for iOS and Android from architecture to App Store submission. Every app in my portfolio is live, downloadable, and verifiable. My work spans health tracking, AI-powered tools, fintech, productivity, and privacy utilities, all built solo without a team. 📱 What I build for mobile: Flutter iOS and Android apps with clean architecture Firebase integration (Auth, Firestore, Functions, Analytics, Crashlytics) RevenueCat subscription paywalls and in-app purchases HealthKit integration for iOS health data Native Swift WidgetKit home and lock screen widgets App Store and Google Play submission end to end Figma to pixel-accurate Flutter UI implementation Offline-first apps with Drift and SQLite local storage 🤖 What I build for AI and voice: Custom AI voice agents using Deepgram, ElevenLabs, and Twilio No Vapi, no Retell, full custom pipeline with Python and FastAPI Inbound and outbound AI calling agents and AI receptionists OpenAI, Gemini, and Claude integrations in production apps n8n and Make automation workflows 🔧 My stack: Flutter, Dart, Swift, Firebase, Riverpod, BLoC, RevenueCat, Stripe, HealthKit, WidgetKit, Deepgram, ElevenLabs, Twilio, Cartesia, Python, FastAPI, Supabase, REST APIs, OpenAI, Gemini Top Rated Flutter developer with 100% Job Success Score. If you want to verify my work before hiring, send me a message and I will point you to the right app to download. SKILLS: Tier 1 core: Flutter iOS Development Android App Development Mobile App Development Firebase Tier 2 supporting: 6. Dart 7. AI Mobile App Development 8. RevenueCat 9. In-App Purchases 10. App Store Submission 11. REST API Integration 12. Riverpod 13. Twilio 14. Python 15. Supabase
Shaiq P. has worked .
Cem S.
$40/hr
100% Job Success
$80K+ earned
Available now
Offers consultations
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𝟕+ 𝐘𝐞𝐚𝐫𝐬 𝐢𝐧 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 & 𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 | 𝐌𝐕𝐏 𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠 & 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠. | 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐀𝐜𝐫𝐨𝐬𝐬 𝟓 𝐂𝐨𝐧𝐭𝐢𝐧𝐞𝐧𝐭𝐬 | 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞d | 𝐒𝐢𝐥𝐢𝐜𝐨𝐧 𝐕𝐚𝐥𝐥𝐞𝐲 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 | 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 | 𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 | 𝐅𝐥𝐮𝐞𝐧𝐭 𝐢𝐧 𝐄𝐧𝐠𝐥𝐢𝐬𝐡  Hi there! I’m a Top Rated mobile app developer with 1300+ hours of experience developing high-performance mobile and web applications. I specialize in scalable, user-friendly, and efficient solutions that help businesses grow. I have extensive experience in mobile development, ensuring smooth performance, intuitive UI, and strong backend integrations. Whether it’s native iOS and Android development (Swift, Kotlin, Java) or cross-platform solutions (React Native, Flutter), I create fast, secure, and scalable apps. Alongside mobile expertise, I also build modern front-end web applications with React.js and Next.js, delivering seamless experiences across platforms. Industry-Leading Experience: I have worked as an iOS developer for CepteŞok and İstegelsin, two of the largest grocery applications in Turkey, as well as Hopi, the country’s biggest loyalty app. These apps have over 1 million+ users, and I played a key role in developing and optimizing their mobile experiences for scalability, performance, and seamless user interactions. Additionally, I bring strong expertise in App Store and Google Play Store management, handling App Store submissions, compliance, reviews, and updates. I also specialize in Google Ads integration, ensuring effective in-app monetization strategies that maximize user engagement and revenue. Why Work With Me? - Expert in Mobile & Web Development – Deep knowledge of frameworks, UI/UX principles, and performance optimizations - Performance-Driven – I optimize apps for speed, security, and scalability - Business-Oriented Approach – I align development with your goals to maximize impact - Strong Communication – Clear updates, efficient collaboration, and on-time delivery - App Store & Play Store Expertise – Seamless app submission, compliance, and optimization for better visibility - Google Ads & Monetization – Integrated ads, in-app purchases, and revenue strategies Mobile Development Expertise • iOS: Swift, SwiftUI, UIKit, CoreData, Combine • Android: Kotlin, Jetpack Compose, Java, Room Database, LiveData • Cross-Platform: React Native, Flutter • Mobile Optimizations: Animations, Lazy Loading, Memory Management, Battery Optimization • App Store & Google Play Submission: Submission, compliance handling, review management, ASO (App Store Optimization) • Google Ads & Monetization: In-app advertising (AdMob, Google Ads SDK), in-app purchases, user retention strategies • Third-Party SDKs & APIs: Firebase, Supabase, Google APIs, Payment Integrations Front-End Development Expertise • Web Development: React.js, Next.js, TypeScript • UI Frameworks: Tailwind CSS, Material UI, Styled Components • Performance Optimizations: Server-side rendering (SSR), lazy loading, caching strategies • API Integration: RESTful APIs, GraphQL Tech Stack & Expertise - Mobile Development: Swift (SwiftUI), Kotlin (Jetpack Compose), Java - Cross-Platform: React Native, Flutter - Front-End Development: React.js, Next.js, TypeScript - Backend & Databases: Firebase, Supabase, Node.js - Cloud & DevOps: AWS, Google Cloud, Docker, Kubernetes - UI/UX Collaboration: Figma, Zeplin Projects I’ve Worked On Health Monitoring App – Developed a mobile application for tracking and analyzing health data. Full-Stack Gym Membership App – Built a complete mobile and backend solution for gym management, integrating payment systems and user tracking. Chat Application – Implemented a secure, real-time messaging platform with modern UI features. VPN App – Designed and developed a high-speed, secure VPN service with optimized performance. Browser Apps – Created advanced mobile applications with built-in web browsing capabilities and custom features. Web Dashboards & Frontend Apps – Developed React-based web applications for data visualization and user interactions. App Store & Play Store Optimized Apps – Successfully submitted and managed multiple apps, ensuring compliance and maximum visibility. Ad-Integrated & Revenue-Optimized Apps – Implemented Google Ads SDK & in-app monetization strategies for increased app revenue. Need a high-quality mobile app, web application, or full-stack solution with seamless App Store submission and Google Ads integration? Let’s connect and bring your project to life!
Cem S. has worked .
C&D Software
Associated with
C&D Software
$100K+
earned
Sagar M.
$50/hr
100% Job Success
$200K+ earned
Available now
Offers consultations
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⚡ 14-Day MVP Delivery – Your production-ready mobile app launched in 2 weeks, not 2 months 🏆 Former Apple iOS Engineer – Silicon Valley standards meet startup speed for investor-ready applications 📱 70+ Apps Launched – Proven track record turning founder ideas into funded businesses on iOS and Android Need Expert Mobile App Development That Actually Delivers on Time? I'm a former Apple iOS engineer offering professional mobile app development for startup founders who need results fast. While other mobile app development agencies take 3-6 months and disappear mid-project, I deliver market-ready MVPs in 14 days or less. No crashes. No excuses. No communication gaps. I've successfully launched 70+ applications across the iOS App Store and Google Play Store through strategic mobile app development. But here's what matters more: I've helped multiple founders turn their ideas into investor-ready apps that secured real funding. One client came to me after their previous mobile app development team ghosted them 3 months into the project. They had an investor meeting in 2 weeks and nothing to show. I rebuilt their entire native app from scratch in 13 days using React Native. The app worked flawlessly in their pitch. They closed $500K in seed funding. That's the difference between a developer who codes and a developer who understands your real goal isn't just an app – it's launching your business before competitors beat you to market. I use test-driven mobile app development methodology with enterprise-grade architecture, so your app doesn't just work on day one. It scales as your business grows. You get weekly progress builds for continuous feedback, and I respond to messages within hours, not days. No more chasing developers who went silent. Whether you need iOS development, Flutter development, or cross-platform solutions with React Native, my mobile app development services deliver apps that look professional, function perfectly, and stay within your budget. No surprise costs. No endless revisions. Just a clear timeline and a finished product that's ready to make you money. Mobile App Development Services: - iOS App Development (Swift, native iOS development) - React Native Development (cross-platform iOS & Android apps) - Flutter Development (modern, scalable mobile applications) - MVP Development (investor-ready apps in 14 days) - Mobile App Design (professional UI/UX that converts) - App Store & Google Play Deployment (end-to-end launch support) Ready to Launch Your App Fast? If you're tired of mobile app development projects that drag on for months, developers who disappear, or apps that crash when you need them most – let's talk. Send me a message with your project details, and I'll show you exactly how my proven mobile app development process can get your app built, tested, and launched in 14 days. Every successful mobile app development project starts with a conversation. Your competitors aren't waiting. Neither should you.
Sagar M. has worked .
BrewApps LLC.
Associated with
BrewApps LLC.
Tamojit B.
$20/hr
99% Job Success
$100K+ earned
Start of list.
End of list.
TOP RATED PLUS Full Stack Web and Mobile App Developer, having in-depth expertise in Node, Express, Angular, React, React Native, Flutter, Swift, RESTful API development, third-party API integration, Chat & Messaging, MongoDB, MySQL, MS SQL Server, SQLite, PostgreSQL Have expert knowledge in Python** to practice AI ➥ What my Upwork client says: ============================= ✅ Great work on time, A1 team! Will work again with them anytime. Highly recommended ✅ Great Team, Great Work, Completed on time and on budget. We will be working with them again for sure! A++ Freelancer ✅ Good job with the work done so far, happy with the team ✅ Nice work. ➥ Technical Skill Set: ===================== ✅ Frontend Development: ★ AngularJS 1.x to Angular 15.x ★ React.js, Redux, RxJS ★ React Native ★ Flutter ★ FlutterFlow ★ HTML5, CSS3, Bootstrap ✅ Backend Development: ★ Node.js, Express.js ★ Python (FastAPI, Flask) ★ RESTful API development ★ AI/ML model integration ★ Chat & Messaging Systems ✅ Databases: ★ MongoDB ★ MySQL ★ MS SQL Server ★ SQLite * PostgreSQL ✅ DevOps & Deployment: ★ Docker, CI/CD ★ Nginx, Jenkins ★ GitHub, GitLab, Bitbucket, TFS ★ Deployment tools: Gunicorn, WebPack, Babel, Gulp/Grunt ★ Cloud Platforms: AWS, Azure ✅ Project & Workflow Tools: ★ Asana, Trello, Jira, Basecamp ✅ CMS & No-Code Platforms: ★ Headless CMS (Strapi) ★ Bubble.io ★ FlutterFlow ➥ Machine Learning & AI Expertise: ================================ ✅ Generative AI (e.g., GPT-3, ChatGPT, OpenAI) ✅ NLP & Text Analysis – chatbots, parsing, information extraction, full-text search ✅ Machine Learning – object detection, classification, clustering, forecasting ✅ Time Series Forecasting – traffic prediction, churn analysis, insurance estimation ✅ AI Backend – FastAPI, Docker, Gunicorn ✅ Frameworks – TensorFlow, PyTorch, Scikit-learn, Spark MLlib ✅ End-to-end model design, training, and production deployment ➥My background in numbers: ========================= ✅ 6+ years of full-stack web and mobile development experience. ✅ Worked on over 20+ SaaS-based web solutions. ✅ 12+ mobile applications that include Fintech, Attendance tracking, Social Networking, Cab-service, LMS, ERP, Booking application, Marketplace, eCommerce, Real estate, Construction Management, Digital Wallet, etc. Thanks for reviewing my skill.
Tamojit B. has worked .
SentientGeeks
Associated with
SentientGeeks
$3M+
earned