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Vishnu A.
$18/hr
100% Job Success
$100K+ earned
Available now
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With over 10 years of diverse experience in software development, I have done it all — from development to team leadership. I am proficient in in building high-quality mobile applications and have strong expertise in Flutter, Android, and iOS app development, along with frontend and backend systems. My expertise spans multiple industries, and I’ve had the opportunity to work with remarkable companies from around the world. I have experience with a wide range of technologies and tools, which I’ve used to build some truly amazing applications. My Services: - MVP | Startup Launch | Product Growth Consulting - Flutter App Development - Android & iOS App Development - Cross-Platform Mobile App Development - Tech Consulting & Product Strategy - Backend Development & Firebase Integration My Expertise: • Flutter App Development • Android & iOS Development • Cross-platform mobile applications • Firebase integration • REST API integration & backend collaboration • App performance optimization • Bug fixing & legacy app improvements • Play Store & App Store deployment • Ongoing app maintenance & feature development • UI/UX implementation & responsive design Who I work with: Startups – take your idea through the startup lifecycle within a reasonable budget and timeline. Small and Medium Businesses – acquire software excellence to boost your current product. Working with me, you will get: - Transparent process with various tracking tools and regular meetings. - Prompt responses and concise explanations. - Expert consulting and tailored advice based on your specific needs. - Smooth integration with existing workflows and effective collaboration with your team. - Flexibility to work with clients across different time zones, from San Francisco to London. - Thorough documentation and dedicated support throughout the transition period. Have questions or need guidance? Feel free to invite me for a discussion!
Vishnu A. has worked .
Karan G.
$15/hr
96% Job Success
$80K+ earned
Available now
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✅ 10+ years of experience in native mobile app development, along with 6+ years of hands-on experience with Flutter and 8+ years working with React Native. 🌟 High-Quality Work 💰 Budget-friendly 💻Fluent English Whether you are a 𝗦𝘁𝗮𝗿𝘁𝘂𝗽 extraordinaire, an 𝗘𝘀𝘁𝗮𝗯𝗹𝗶𝘀𝗵𝗲𝗱 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 maven, or simply on the prowl for 𝗠𝗩𝗣 domination, you've found the ultimate source of 𝗛𝗶𝗴𝗵-𝗤𝘂𝗮𝗹𝗶𝘁𝘆 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 at best prices. 👋 Hi, I am Karan! I am a 📱 Mobile App Developer with over 10 years of experience creating amazing apps for iOS, Android, React Native and Flutter. I love building user-friendly solutions that help businesses thrive. I specialize in Native, React Native and Flutter app Development for both iOS and Android, covering a range of niches and services ✪ 𝗙𝗶𝗻𝘁𝗲𝗰𝗵 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆: Payment app, Budgeting app ✪ 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆: Telemedicine app, Health records flutter app ✪ 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆: Shopping app, Delivery tracking flutter app ✪ 𝗥𝗲𝗮𝗹 𝗘𝘀𝘁𝗮𝘁𝗲 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆: Property listing app, Mortgage calculator flutter app ✪ 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆: E-learning app, Quiz and assessment flutter app ✪ 𝗧𝗿𝗮𝘃𝗲𝗹 𝗮𝗻𝗱 𝗧𝗼𝘂𝗿𝗶𝘀𝗺 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆: Travel booking app, Tour guide flutter app ✪ 𝗙𝗼𝗼𝗱 𝗮𝗻𝗱 𝗥𝗲𝘀𝘁𝗮𝘂𝗿𝗮𝗻𝘁 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆: Food delivery app, Table reservation flutter app ✪ 𝗘𝗻𝘁𝗲𝗿𝘁𝗮𝗶𝗻𝗺𝗲𝗻𝘁 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆: Streaming app, Event ticketing flutter app ✪ 𝗔𝘂𝘁𝗼𝗺𝗼𝘁𝗶𝘃𝗲 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆: Car rental app, Vehicle tracking flutter app ✪ 𝗙𝗶𝘁𝗻𝗲𝘀𝘀 𝗮𝗻𝗱 𝗪𝗲𝗹𝗹𝗻𝗲𝘀𝘀 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆: Workout app, Nutrition tracking flutter app ✪ 𝗦𝗼𝗰𝗶𝗮𝗹 𝗡𝗲𝘁𝘄𝗼𝗿𝗸𝗶𝗻𝗴: Social media app, Dating flutter app ✪ 𝗧𝗿𝗮𝗻𝘀𝗽𝗼𝗿𝘁𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗟𝗼𝗴𝗶𝘀𝘁𝗶𝗰𝘀: Shipping and tracking app, Fleet management flutter app ✪ 𝗔𝗴𝗿𝗶𝗰𝘂𝗹𝘁𝘂𝗿𝗲: Crop management app, Weather forecasting flutter app ✪ 𝗜𝗼𝗧 (𝗜𝗻𝘁𝗲𝗿𝗻𝗲𝘁 𝗼𝗳 𝗧𝗵𝗶𝗻𝗴𝘀) 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆: IoT monitoring and control flutter app ⮞ Tools: VS Code, Android Studio, Xcode ⮞ 6+ years of experience with Flutter and Flutter app development ⮞ Web and backend (dashboard) development with strong knowledge of JavaScript, React.js, Node.js, Django, Express.js, TypeScript, Laravel, PHP, and MERN stack ⮞ Strong understanding of native and hybrid app development ⮞ Integration of third-party APIs ⮞ Familiarity with microservices and cloud platforms such as AWS ⮞ Database experience with MySQL, MongoDB, Redis, SQLite, Elasticsearch, PostgreSQL, and Firebase ⮞ Backend development expertise including API design and server-side technologies such as Node.js, PHP, MERN stack, and Django ⮞ Android development using Kotlin, Java, and Jetpack Compose ⮞ iOS development using Swift, Objective-C, and SwiftUI ⮞ Cross-platform (hybrid) app development using Flutter and React Native ⮞ Databases including SQLite, MySQL, MongoDB, PostgreSQL, Firebase Cloud Firestore, Firebase Realtime Database, Firebase Remote Config, and Firebase Cloud Storage ⮞ No-code and AI tools experience including Lovable.dev, Bolt.new, Grok, DeepSeek, GPT-4.5, Claude, Cursor AI, v0 by Vercel, Google AI Studio, and related platforms 📩 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 𝗺𝗲 𝘁𝗼𝗱𝗮𝘆 𝗮𝗻𝗱 𝗹𝗲𝘁’𝘀 𝗯𝗿𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝗮𝗽𝗽 𝗶𝗱𝗲𝗮 𝘁𝗼 𝗹𝗶𝗳𝗲.
AVL TECH
Associated with
AVL TECH
$300K+
earned
Yogesh K.
$20/hr
100% Job Success
$80K+ earned
Available now
Offers consultations
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I’m a 𝐒𝐞𝐧𝐢𝐨𝐫 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with 10+ years of experience building high-performance, scalable, and user-friendly applications using React Native, Expo, and Flutter for both iOS and Android platforms. As a Top Rated Upwork Developer, I help startups and businesses turn ideas into reliable, production-ready mobile apps with clean architecture and long-term scalability. 🚀 𝐖𝐡𝐚𝐭 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 𝐘𝐨𝐮 𝐖𝐢𝐭𝐡 ✔ Cross-platform mobile app development (React Native, Expo, Flutter) ✔ MVP development for startups and SaaS products ✔ Upgrading and migrating Expo/React Native apps (latest SDKs) ✔ Performance optimization and bug fixing ✔ Real-time features (chat, live updates, video streaming, geolocation) ✔ Payment gateway integration (Stripe, Razorpay) ✔ Third-party API integrations (REST & GraphQL) ✔ App deployment (Google Play Store & Apple App Store) 💼 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞 ✔ Clean, scalable, and maintainable code ✔ Fast communication & reliable delivery ✔ Long-term collaboration mindset ✔ Focus on performance, security, and UX ✔ Post-launch support and ongoing improvements 🛠 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 & 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: React Native, Expo, Flutter, Dart, TypeScript 𝐒𝐭𝐚𝐭𝐞 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Redux, Zustand, BLoC, GetX 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐀𝐏𝐈𝐬: Node.js, Laravel, REST APIs, GraphQL 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 & 𝐂𝐥𝐨𝐮𝐝: Firebase (Auth, Firestore), Supabase, PostgreSQL, MongoDB 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐬 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: Push Notifications (FCM, OneSignal), Google Maps API, GPS, Social Login 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐓𝐨𝐨𝐥𝐬: Fastlane, GitHub Actions, CI/CD, Automated Testing 📱 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞𝐝 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 ✔ Real-time apps & live streaming features ✔ Location-based apps & geofencing ✔ E-commerce & booking platforms ✔ SaaS mobile applications ✔ Custom native modules (Swift, Kotlin) 📈 𝐋𝐞𝐭’𝐬 𝐁𝐮𝐢𝐥𝐝 𝐒𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐆𝐫𝐞𝐚𝐭 If you need a reliable mobile app developer who can deliver scalable, high-quality apps with modern technologies — let’s connect. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬: React Native Developer | Flutter Developer | Mobile App Developer | Cross Platform App Development | iOS App Development | Android App Development | Expo Developer | SaaS MVP Development | Firebase | REST API | GraphQL | Mobile UI/UX | App Deployment | Google Play Store | Apple App Store
Yogesh K. has worked .
Auspicioussoft - Top Rated Website, Mobile App and Digital Marketing agency
Associated with
Auspicioussoft - Top Rated Website, Mobile App and Digital Marketing agency
Hasan A.
$27/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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If you’re here, you’re probably looking for someone who can build a reliable mobile app, improve an existing one, or take an idea and turn it into a scalable SaaS web app or Admin panel sing React.jsNext.js , Node,js, Python (Django, Flask), Fast API. That’s exactly what I do. I’m a Full Stack Mobile & Web App Developer with 15+ years of experience in Mobile App Development, and for the last several years I have been working Flutter-first building high-performance iOS and Android apps backed by solid MERN Stack, Python systems. 📱 𝗠𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀 𝗮𝗿𝗲 𝗺𝘆 𝗰𝗼𝗿𝗲 𝘀𝘁𝗿𝗲𝗻𝗴𝘁𝗵 Most of my work revolves around Flutter, React Native, Kotlin, Swift Mobile App Development creating cross-platform, hybrid mobile apps that feel fast, smooth, and native on both Android and iOS. 𝗜 𝗵𝗲𝗹𝗽 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘄𝗶𝘁𝗵: 1-Flutter & Flutter Stack development 2-Android App & iOS App development 3-Hybrid App Development 4-AI Mobile App Development 5-Mobile Wallets & payment-enabled apps 6-Mobile App Localization 7-Mobile App Improvement & performance optimization 8-Mobile App Strategy & development consultation Whether you’re launching a new app or fixing an existing one, I focus on clean architecture, smooth UI, and long-term scalability. 🌐 𝗪𝗵𝗲𝗻 𝗺𝗼𝗯𝗶𝗹𝗲 𝗻𝗲𝗲𝗱𝘀 𝗮 𝗯𝗮𝗰𝗸𝗲𝗻𝗱 (𝗼𝗿 𝗮 𝗳𝘂𝗹𝗹 𝗦𝗮𝗮𝗦) Most apps don’t live on the phone alone, they need admin panels, dashboards, APIs, and web platforms. That’s where my MERN Stack, Python, Fast API experience comes in. 𝗜 𝗿𝗲𝗴𝘂𝗹𝗮𝗿𝗹𝘆 𝗯𝘂𝗶𝗹𝗱: 1-MERN Stack admin panels 2-MERN Stack SaaS products 3-Python, FastAPI SaaS products 4-SaaS web applications 5-Secure REST APIs & authentication 6-Subscription systems and Stripe integrations This means you don’t need to juggle multiple freelancers ;mobile app, backend, and web dashboard are all covered. 🤝𝗛𝗼𝘄 𝗜 𝘄𝗼𝗿𝗸 (𝗮𝗻𝗱 𝘄𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘀𝘁𝗶𝗰𝗸 𝗮𝗿𝗼𝘂𝗻𝗱) 1-I don’t jump straight into coding. I first understand: 2-what you’re building, 3-who it’s for, 4-and how it needs to scale. 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝘂𝘀𝘂𝗮𝗹𝗹𝘆 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗺𝗲 𝗯𝗲𝗰𝗮𝘂𝘀𝗲 𝗜 𝗯𝗿𝗶𝗻𝗴: ✔ Clear communication ✔ Strong mobile app architecture ✔ Real-world product experience ✔ Honest technical guidance (not over-engineering) I treat your project like a product, not just a task. 𝗟𝗲𝘁’𝘀 𝘁𝗮𝗹𝗸 𝗮𝗯𝗼𝘂𝘁 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 If you’re looking for a Flutter/React Native developer, mobile app developer, or full stack MERN, Python, FastAPI developer who can help you build, improve, or scale your app , I will be happy to discuss your idea.
Hasan A. has worked .
Algorepublic
Associated with
Algorepublic
$200K+
earned
$22/hr
96% Job Success
$100K+ earned
Available now
Offers consultations
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🥇 𝐓𝐎𝐏 𝐑𝐀𝐓𝐄𝐃 𝐏𝐋𝐔𝐒 𝐅𝐑𝐄𝐄𝐋𝐀𝐍𝐂𝐄𝐑 | 🥇 𝟏𝟏𝟓+ 𝐂𝐨𝐦𝐩𝐥𝐞𝐭𝐞𝐝 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 | 🥇 𝟏𝟎𝟎% 𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧 | 🥇 𝐓𝐨𝐩 𝟑% 𝐓𝐚𝐥𝐞𝐧𝐭 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤 | 🥇 𝟔+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 | 🥇 𝐓𝐫𝐮𝐬𝐭𝐞𝐝 𝐛𝐲 𝐒𝐭𝐚𝐫𝐭𝐮𝐩 𝐚𝐧𝐝 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐟𝐨𝐫 𝐋𝐨𝐧𝐠-𝐓𝐞𝐫𝐦 𝐏𝐚𝐫𝐭𝐧𝐞𝐫𝐬𝐡𝐢𝐩𝐬 . I'm a 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 Mobile App Developer with over 6+ years of experience helping startups and businesses bring their app ideas to life. From iOS and Android to cross-platform solutions using Flutter and React Native, I build high-quality mobile applications that deliver great user experiences, drive engagement, and support business growth. With a strong background in UI/UX design, API integration, Firebase, REST/GraphQL, and AI-powered features, I build mobile applications that are intuitive, reliable, and performance-driven. As a Mobile App Developer and 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐒𝐜𝐫𝐮𝐦 𝐌𝐚𝐬𝐭𝐞𝐫, my mission is to transform your vision into a high-quality, high-performance mobile application that drives business growth and delivers real value. By following proven software architecture principles and a well-structured development process, I ensure your app is reliable, user-friendly, and built for long-term success. 🎯 If this sounds like what you need, click "𝐈𝐧𝐯𝐢𝐭𝐞 𝐭𝐨 𝐉𝐨𝐛" at the top right, share your Figma files or requirements, and let's map out your build. 🎛️ 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐒𝐭𝐚𝐜𝐤: ◉ 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Flutter, Android, iOS, React Native, SwiftUI, Dart, Kotlin ◉ 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐓𝐨𝐨𝐥𝐬: Android Studio, Xcode, VS Code ◉ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Node.js, Express.js, PHP Laravel, Django, FastAPI, Firebase, REST APIs, GraphQL, Postman, Next.js, React ◉ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MongoDB, PostgreSQL, MySQL, Firebase, Firestore, Supabase, SQLite ◉ 𝐀𝐏𝐈 & 𝐓𝐡𝐢𝐫𝐝-𝐏𝐚𝐫𝐭𝐲 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: Stripe, PayPal, OpenAI, Google Maps, RevenueCat, AdMob, Shipping APIs ◉ 𝐀𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: OpenAI, Gemini, LLMs, AI Chatbots, AI Agents, Model Training, KNN ◉ 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭: AWS, VPS, Docker, Git, GitHub, Cloudinary, Amazon S3, Domain & DNS Management, Hostinger, KMP ◉ 𝐔𝐈/𝐔𝐗 𝐃𝐞𝐬𝐢𝐠𝐧: Figma, Adobe XD, Wireframes, Prototypes, Responsive UI Design, Material Design, Cupertino Widgets, Design Systems 🌐𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐃𝐨𝐦𝐚𝐢𝐧𝐬 & 𝐀𝐩𝐩 𝐓𝐲𝐩𝐞𝐬: ◉ AI-Powered Mobile Apps (Chatbots, Automation, LLM Integration) ◉ E-Commerce & Marketplace Apps ◉ Food Delivery & Grocery Apps ◉ Taxi & Ride-Hailing Apps ◉ On-Demand Service Apps (Home, Salon, Booking, Delivery) ◉ Social Networking & Dating Apps ◉ Healthcare & Fitness Apps ◉ FinTech & Payment Apps ◉ Real Estate & Property Apps ◉ EdTech & E-Learning Apps ◉ Travel & Booking Apps ◉ SaaS & Subscription-Based Apps ◉ Chat, Messaging & Communication Apps ◉ Video Streaming & Content Apps ◉ Logistics & Delivery Tracking Apps 📊 𝐂𝐡𝐞𝐜𝐤 𝐨𝐮𝐭 𝐦𝐲 𝐩𝐨𝐫𝐭𝐟𝐨𝐥𝐢𝐨 𝐨𝐟 𝐚𝐩𝐩𝐬 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤: Over the past decade, I have honed my skills in developing a diverse range of iPhone and Android applications. 🌍 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐈𝐧: ◉ Healthcare & Wellness ◉ E-Commerce & Retail ◉ FinTech & Banking ◉ EdTech & LMS Platforms ◉ Travel & Hospitality ◉ Sports & Fitness ◉ Real Estate ◉ Entertainment & Media ◉ SaaS & B2B Platforms ◉ Logistics & Transportation 🚀 𝐓𝐲𝐩𝐞𝐬 𝐨𝐟 𝐀𝐩𝐩𝐬 𝐈 𝐁𝐮𝐢𝐥𝐝: ◉ Food & Grocery Delivery Apps ◉ Ride-Hailing & On-Demand Apps ◉ Marketplace & E-Commerce Platforms ◉ Healthcare & Fitness Apps ◉ Social & Dating Apps ◉ FinTech & Wallet Apps ◉ SaaS & Business Apps ◉ AI-Powered Mobile Apps ◉ Real Estate & Booking Apps ◉ EdTech & Learning Apps ▶️ 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮 𝐂𝐚𝐧 𝐄𝐱𝐩𝐞𝐜𝐭 𝐅𝐫𝐨𝐦 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞: ✔ Trust & Professionalism ✔ On-time Delivery ✔ Clear & Fast Communication ✔ Daily / Regular Progress Updates ✔ Agile (Scrum-based) Development Process ✔ Clean, Scalable & Maintainable Code ✔ Business-focused Development Approach ✔ Transparent Workflow & Milestone Delivery ✔ High Client Satisfaction Focus ✔ Long-term Collaboration & Support ✨ 𝐋𝐞𝐭'𝐬 𝐁𝐮𝐢𝐥𝐝 𝐘𝐨𝐮𝐫 𝐍𝐞𝐱𝐭 𝐀𝐩𝐩: 𝐖𝐞 𝐜𝐫𝐞𝐚𝐭𝐞 𝐭𝐡𝐢𝐧𝐠𝐬 𝐭𝐡𝐚𝐭 𝐦𝐚𝐤𝐞 𝐚 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐜𝐞, 𝐧𝐨𝐭 𝐣𝐮𝐬𝐭 𝐭𝐨 𝐠𝐞𝐭 𝐚 𝐣𝐨𝐛 𝐝𝐨𝐧𝐞. 𝐈 𝐚𝐩𝐩𝐫𝐞𝐜𝐢𝐚𝐭𝐞 𝐭𝐡𝐚𝐭 𝐲𝐨𝐮 𝐡𝐚𝐯𝐞 𝐭𝐚𝐤𝐞𝐧 𝐚 𝐬𝐭𝐞𝐩 𝐭𝐨 𝐫𝐞𝐯𝐢𝐞𝐰 𝐦𝐲 𝐩𝐫𝐨𝐟𝐢𝐥𝐞. 𝐈 𝐜𝐚𝐫𝐞 𝐚𝐛𝐨𝐮𝐭 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐬𝐭𝐚𝐛𝐥𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬 𝐭𝐡𝐚𝐭 𝐬𝐮𝐩𝐩𝐨𝐫𝐭 𝐫𝐞𝐚𝐥 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐠𝐫𝐨𝐰𝐭𝐡 — 𝐧𝐨𝐭 𝐣𝐮𝐬𝐭 𝐰𝐫𝐢𝐭𝐢𝐧𝐠 𝐜𝐨𝐝𝐞.
Rakibul I. has worked .
Bilal R.
$45/hr
100% Job Success
$30K+ earned
Offers consultations
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I build and ship mobile apps with React Native Expo, CLI and Flutter, 100+ live iOS and Andorid apps on the App Store and Google Play. I also specialise in code review, app maintenance and taking over fast-built MVPs, often built with AI coding tools, that now need a steadier hand: features to finish, bugs to settle, and a codebase that can grow with the product. Wherever yours stands today, I'll take a careful look and give you a clear, honest view of the best path forward, before any commitment. 100% Job Success Score, 18 five-star reviews, and 7+ years building cross-platform apps that hold up in production. 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 𝗳𝗶𝗿𝘀𝘁. 𝗖𝗼𝗱𝗲 𝘀𝗲𝗰𝗼𝗻𝗱. Most cross-platform apps don't struggle because of the idea. They struggle because the code started before the architecture did. A building engineer doesn't raise walls before the foundation is set, and I treat every app the same way. It's also why fast-built MVPs tend to stall: the product outgrows a structure that was never planned for it. Get that part right, and everything after it gets easier, cheaper, and faster to ship. 𝗧𝗵𝗲 𝗻𝘂𝗺𝗯𝗲𝗿𝘀 → 100% Job Success Score, maintained across 23 contracts → 18 five-star reviews → 100+ apps shipped to the App Store and Google Play (career total) → 200+ mobile developers trained → Long-term clients who keep coming back 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱 → New apps from scratch, MVP to launch in 4–8 weeks → Real-time features, push notifications, deep linking, offline-first → AI-powered features (OpenAI / Claude API), in production today → In-app purchases, subscriptions, Stripe → Supabase / Firebase backends, REST, GraphQL, WebSockets 𝗪𝗵𝗮𝘁 𝗜 𝗵𝗲𝗹𝗽 𝘄𝗶𝘁𝗵 → Finishing and stabilising MVPs, including those built with AI coding tools → Stepping into stalled or paused projects and getting them moving again → Upgrading 7–10 year old apps to current stable versions → Expo SDK migrations, New Architecture, Android API 35 → Replacing deprecated libraries and third-party SDKs → Refactoring older code into a clean, maintainable structure → Startup speed, memory, render performance, crash reduction → Testing (unit, integration, E2E), CI/CD, release automation → App Store & Play Store deployment and long-term maintenance 𝗧𝗲𝗰𝗵 𝗜 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 React Native · Flutter · Expo · TypeScript · Dart · JavaScript · Redux · Zustand · React Navigation · Bloc · Riverpod · Supabase · Firebase · Node.js · REST · GraphQL · WebSockets · OpenAI API · Claude API · EAS Build · Fastlane · GitHub Actions 𝗛𝗼𝘄 𝘄𝗲 𝘀𝘁𝗮𝗿𝘁 Before any commitment, I offer a free 15–20 minute consultation. I'll look at where your app stands, point out the risks worth knowing about early, suggest the right approach, and give you an honest timeline. If it's not a fit, I'll tell you that too. Tell me what you're building, and we'll figure out the best way to get it into your users hands.
Bilal R. has worked .
Aakash S.
$15/hr
100% Job Success
$4K+ earned
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Are you ready to take your project to the next level? Look no further because I'm, a Full Stack Developer with a stellar 10+ year track record of delivering exceptional results in the world of web and mobile app development. I don't just build software; I craft digital experiences that leave a lasting impact. My journey in the tech world began over a decade ago, and I've been on a relentless quest for excellence ever since. I've had the privilege to collaborate with a wide array of clients – from disruptive startups to global enterprises – and have consistently exceeded their expectations. When you work with me, you're not just hiring a developer; you're partnering with a tech visionary who's driven by a passion for innovation. My expertise spans the entire software development spectrum, from concept to deployment and beyond. Here's a glimpse of the technologies and tools I command with mastery: - Front-end: HTML, CSS, JavaScript, React, Angular, Vue.js - Back-end: Node.js, Django, PHP, Express.js - Databases: MySQL, PostgreSQL, MongoDB, Redis - Mobile: React Native, Flutter - DevOps: Docker, AWS, Azure, Heroku - Testing: Mocha, Jasmine, Jest - Project Management: Agile, Scrum What sets me apart? I do more than write code; I design solutions. I'm passionate about crafting code that's clean, efficient, and can grow as your needs do. My expertise also includes speeding up existing applications to perform at their best. I don't just meet expectations; I exceed them. 📚 I'm always committed to staying up-to-date. I'm not just experienced; I'm a lifelong learner. In an ever-evolving tech landscape, I thrive by embracing the latest trends and best practices. I adapt. I innovate. I lead. If you're looking for a Full Stack Developer who thrives on challenges and consistently delivers remarkable results, your search ends here. Let's collaborate to transform your vision into a digital masterpiece. Your success is my success. Drop me a message, and let's talk. I'm not just here to build software; I'm here to build a legacy. Don't settle for mediocrity when you can have excellence. Elevate your project, and let's make a mark in the digital world together.
Aakash S. has worked .
Owebest Technologies - Global CMMI Level 3 Appraised Company  ⭐⭐⭐⭐⭐
Associated with
Owebest Technologies - Global CMMI Level 3 Appraised Company ⭐⭐⭐⭐⭐
$5K+
earned
Awais C.
$24.98/hr
100% Job Success
$10K+ earned
Available now
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I help startups and businesses build high performance mobile applications using Flutter, FlutterFlow, React Native, and AI-powered technologies that are scalable, fast, and production ready. Most apps fail when they try to scale due to poor architecture, performance issues, or lack of planning. I specialize in building apps that are designed to grow from MVP stage to thousands of users without needing a complete rebuild. With experience across Flutter, React Native, and AI-integrated mobile solutions, I have developed applications in SaaS, FinTech, HealthTech, and marketplace domains, focusing on clean architecture, smooth user experience, and long term scalability. 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝗯𝘂𝗶𝗹𝗱: Flutter & FlutterFlow MVP Development React Native Cross-platform Apps AI-powered Mobile Applications (OpenAI, ChatGPT, automation) Scalable backend integration (Firebase, Supabase, Node.js) Payment systems (Stripe, RevenueCat, In-App Purchases) Real-time apps (chat, tracking, notifications) App optimization, bug fixing & scaling existing apps 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸: • Flutter • Dart • FlutterFlow • React Native • Firebase • Supabase • Node.js • REST APIs • GraphQL • Stripe • RevenueCat • OpenAI API • ChatGPT API • BLoC • Riverpod • CI/CD • Push Notifications 𝗪𝗵𝘆 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗺𝗲: • Clean & scalable architecture • Fast and clear communication • Weekly progress updates • 30 days post-launch support • Full source code ownership • Focus on performance and user experience If you're looking for a reliable developer who can turn your idea into a scalable mobile product using Flutter, FlutterFlow, React Native, or AI integration, feel free to send me a message.
$45/hr
82% Job Success
$100K+ earned
Available now
Offers consultations
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Up your work with Shobhit Sharma | Full-Stack Developer | AI Apps Builder | Scalable Platforms ⭐⭐⭐⭐⭐ Senior AI Engineer | Principal Software Architect | Expert Mobile App developer | Senior Full Stack developer | Flutter expert | AI-Powered Apps Development expert | Scalable SaaS & Mobile Platforms expert | Saas Solution Development expert | Complex Problem Solver | Top rated plus Fullstack developer| Enterprise Level software Architect Building software that holds up under real users, real data, and real pressure. In 2026, writing code is easy. Building systems that survive scale, complexity, and change is not. I’m Shobhit Sharma, a Principal Software Architect with 10+ years of hands-on experience designing and delivering AI-powered applications, complex SaaS platforms, real-time sports systems, and production-grade mobile apps. I work at the point where products move from ideas and MVPs into reliable, revenue-generating, investor-ready software. My clients consistently recognize me as a Clear Communicator and Collaborative partner, with a strong Commitment to Quality. I am known for being Reliable and Solution Oriented, ensuring that projects are completed professionally and with accountability for outcomes. My approach is detail-oriented, focusing on delivering high-quality results that meet client expectations. Keywords: AI app developer, Full-stack SaaS developer, Mobile app developer, Sports app development, Backend & API systems, Startup MVP builds Clients don’t hire me for “just development.” They bring me in when the product must work correctly—with payments, subscriptions, rankings, AI decisions, and real users depending on it. What I Actually Do I architect and build high-consequence software systems end to end: AI-powered application development (LLM features, RAG pipelines, vector search, document intelligence, automation) Full-stack SaaS development (multi-tenant systems, subscriptions, billing, RBAC, analytics, admin panels) Mobile app development for iOS & Android (Flutter / React Native, offline-first, real-time sync) Complex sports & gaming platforms (fantasy sports, competitions, leaderboards, matchmaking, anti-cheat logic) Scalable backend & API development (Node.js, Python, event-driven systems, WebSockets) Cloud architecture & DevOps (AWS/GCP, Docker, CI/CD, monitoring, security) I design systems to behave predictably under unpredictable usage. How I Think (This Is the Difference) Most bugs don’t come from missing features—they come from bad state management, unclear data ownership, and hidden edge cases. My work focuses on: Transaction safety (wallets, payments, subscriptions) State machines over ad-hoc logic Clear data models and invariants Auditability and traceability Scaling without rewrites AI features that are explainable, secure, and cost-aware Whether it’s an AI SaaS, a mobile-first platform, or a real-time sports engine, I design for the moment when things go wrong—not just when demos look good. Areas I’m Commonly Hired For (Search-Relevant) AI app developer / AI-powered app development Full-stack SaaS developer Mobile app developer (Flutter / React Native) Sports app & fantasy platform development Complex backend & API systems Startup MVP / MSVP builds that must scale Refactoring systems built fast but needing to be built right Technical Stack (Production-Proven) Mobile: Flutter, React Native, native iOS/Android integrations Frontend: React, Next.js, TypeScript, Tailwind Backend: Node.js, FastAPI, Python, REST, GraphQL, WebSockets AI/ML: OpenAI / LLMs, LangChain, Vector Databases, Whisper, OCR, Recommendation Systems Databases: PostgreSQL, MongoDB, Redis Cloud & DevOps: AWS, GCP, Docker, Kubernetes, CI/CD Payments & FinTech: Stripe, subscriptions, wallets, secure payment flows Selected Work MinaTravel — AI-powered travel planning using OCR + LLM workflows Doctor Anywhere — large-scale telehealth mobile apps & backend systems Simplay / Knockout11 — real-time fantasy sports platforms with wallets and competitions (Additional enterprise SaaS, e-commerce, and mobile products available on request.) How Engagements Usually Work Short discovery call (problem, platform, scale) Architecture & phased roadmap Build → QA → secure launch Ongoing optimization and scale support I work with a limited number of clients to maintain quality, focus, and accountability. If you’re looking for an AI developer, SaaS architect, mobile app expert, or sports platform engineer who can own complexity end to end—and explain decisions clearly—I’m a strong fit. Send a brief with what you’re building and how big it needs to get. I’ll respond with a clear technical plan and next steps. Shobhit Sharma Founder, Velupr Infosoft Principal Software Architect | AI • SaaS • Mobile • Real-Time Systems
Shobhit S. has worked .
Volodymyr N.
$49/hr
100% Job Success
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✅ Expert-Vetted by Upwork (Top 1%) ✅ 8+ years of Mobile App Development ✅ 20000+ Upwork hours | 86+ successful jobs ✅ 100% Job Success Score ✅ 91+ mobile & web projects delivered ✅ Flutter, React Native, Kotlin, Swift, UI/UX expert ✅ Proven impact: apps with millions of downloads & high ROI 👋 I'm a Senior Mobile Developer with over 8 years of experience helping startups and enterprises bring their app ideas to life. From iOS and Android to full-scale cross-platform solutions using Flutter and React Native — I deliver high-performance mobile applications designed to scale, engage users, and grow revenue. I've led teams of 15+ developers on enterprise-grade solutions and built MVPs for founders that went on to raise investment and scale to thousands of users. Whether you’re launching your first product or modernizing an existing one — I’ll help you make it real, robust, and ready for growth. 🧩 What I Can Do For You As a dedicated Mobile App Developer and Full Stack Solution Architect, I offer full-cycle development: —from idea & architecture, to scalable MVPs, intuitive UI/UX, app store deployment, and long-term support. 🛠 Tech Stack & Tools Mobile: React Native, Flutter, Swift, Kotlin, Java, Dart Frontend/Backend: TypeScript, Laravel, Firebase, Node.js, REST APIs DevOps: AWS, CI/CD pipelines, GitHub Actions, Docker, Terraform 3rd Party: Apple HealthKit, Stripe, ChatGPT API, WebRTC, PayPal, MQTT UI/UX: Figma, Adobe XD, custom UX audits & flows SDKs: iOS SDK, Android SDK, TensorFlow, AWS SDK, Custom A/B SDKs 📱 Apps I’ve Delivered Ride Instructor Booking App Social Media & Dating Platforms On-Demand Delivery Services Investment & Finance Mobile Solutions Learning Management Systems Grocery & Inventory Management VPN Wrappers, AI Assistants & Audio Bots eSIM marketplaces and E-bike IoT apps Custom Admin Panels and Secure Dashboards 🌍 Industries I Serve Healthcare & Wellness E-Commerce & Retail EdTech & LMS FinTech & Investor Platforms Travel & Booking Apps Sports, Fitness & Events Blockchain, NFT, AI/ML-based Apps Ecology, Waste & Recycling Smartwatch + IoT platforms Telecommunications (eSIM, VoIP, VPNs) 💡 Real Impact — Real Cases Migrated legacy NativeScript app to React Native with full redesign and story-based features (Felloz, Croatia). Created an MVP for a tarot reading platform with AI-driven magic ball chat, camera vision, and animated UX (Tarotoo, Ukraine). Developed a smartwatch-integrated app for a UK-based security firm using Apple Watch for distress signaling. Delivered GrowthBook SDK, CI/CD-integrated, with full UnitTest coverage and release to SPM/CocoaPods (Open-source, USA). Reworked CarPlay integration for a mobility platform: custom routing, filtering, and Apple Maps integration (UAE). 📊 Highlights ✔️ Built full-stack mobile platforms with React Native, Swift, Kotlin, Flutter + Nest.JS, Firebase, Node.JS ✔️ Integrated ChatGPT API & DALL·E into production apps ✔️ Custom SDK development: Swift, Kotlin, TensorFlow, AWS ✔️ Delivered apps with integrated CI/CD pipelines and Unit Tests ✔️ Designed UX/UI flows that won Dribbble Awards ✔️ Supported MVPs that secured funding and scaled globally ✔️ Created Web + Mobile ecosystems for clients in over 15 countries ✔️ Delivered multilingual, accessible, and ADA-compliant applications ✔️ 5.0★ satisfaction across long-term clients on Upwork & Clutch 🤝 Why Work With Me I’m not just a develope r— I’m your technical partner, working closely with you to bring clarity to the process, speed to delivery, and value to your users. I offer transparent communication, future-proof architecture, and measurable results. 📌 Let’s build something scalable and impactful together. Message me now to discuss your next big app. 🔗 Portfolio and project links available upon request. Let’s build something exceptional.
Volodymyr N. has worked .
Kevych Solutions
Associated with
Kevych Solutions