If you've ever hired a developer who disappeared mid-project, missed a deadline, or delivered something that looked nothing like what you discussed, you already know how expensive the wrong choice is. I'm Hassan. I've shipped production Flutter apps for iOS and Android across 5+ years and multiple industries, from first commit to App Store and Play Store approval. My 100% Job Success Score on Upwork isn't a lucky streak. It's the result of one habit: I treat your product like it's mine. What I've built: ➤ Cross-platform iOS & Android apps from a single Flutter codebase, used in production across e-commerce, HR tech, field operations, and social platforms. ➤ Firebase & Supabase backends, including Auth, Firestore, Realtime Database, Cloud Functions, and FCM, along with clean REST API integrations with third-party services. ➤ E-commerce and marketplace apps with Stripe and in-app purchase integration. Clients have gone live and processed real transactions from day one. ➤ Attendance, HR, and productivity tools with role-based access, offline sync, and real-world field use. ➤ Social and community apps with real-time chat, push notifications, and media handling. ➤ I've navigated App Store rejections, Firebase quota limits, and Play Store policy disputes and shipped anyway. I know the edge cases that cost less experienced developers weeks. How I work: ➤ Clean architecture from day one using BLOC, Provider, or Riverpod, so your codebase stays maintainable long after I'm done. ➤ 0–4 hour response time, 6 days a week. You will never wonder where I am. ➤ Plain English communication, honest timelines, and problems flagged early, never at the deadline. What clients say: ➤ "Hassan Zafar is an amazing person. Done the job successfully before time." — Upwork client ➤ "The project was completed efficiently and within the expected timeframe. He was responsive and available to provide clarification." — Upwork client If you have a project or even just an idea, send me an invite. I'll give you an honest scope and timeline assessment within a few hours, not a sales pitch.

I have over 7 years of experience developing mobile apps professionally. I specialize in Flutter Mobile App Development. ✅ Mobile Development ✅ Top Rated ✅ 100% Job Success ✅ High-Quality Work ✅ Cost-Efficient Services ✅ 7+ Years Of Experience ✅ Long term working relationship ✅ 100K+ app downloads on stores 👨‍💻 DEVELOPMENTS SKILLS: • Flutter platform-specific integration. (Android with java and IOS with objective c and swift). • Firebase (Authentication, Cloud Firestore, Cloud Functions, Cloud Storage, Remote Config, Crashlytics, etc...). • Push notifications. • Socket-base chat. • Payment gateway integrations (Stripe, In-App Purchase, Razorpay, Paypal, etc...). • Flutter Google Map integrations. • Local database (SQLite, Hive, File, and Shared preference, etc...). • State management (Provider, Getx, Riverpod, Bloc). • Memory management. • API integrations. • Social Networking Integration (Facebook, Twitter integration, Instagram, Google, etc..) • Localizations. • Responsive and great UI integrations. • Animations • ChatGPT API Integration • AI Automation 🌐 INDUSTRIES I WORKED FOR : • IT • E-Commerce • Health and Fitness • Beauty products (for men and women) • Dating • Education / Services • Real estate (commercial and non-commercial real estate) • Sport • SocialMedia • Food (cafes, restaurants and etc.) • Travel • SaaS and Startups of various industries If this suits you and you are looking for the best quality and expertise in flutter app development, just contact me and we will create an amazing product for you or your clients. Thanks for reviewing my profile. --------------------------------------------------------------------------------------------------------------------- Flutter App Development | Flutter Web App Development | Mobile App Development | MVP Development | Firebase | UI/UX Design | Game development | Prototype | RESTful API | AI |In-app purchases, Location, Payment Gateway Integration, Apple Xcode, Android Studio, Push notifications, User authentication, User profile creation, Phone, Android App, API Development, API Integration, Front End Development, Back End Development, Android, QA, Unit Testing, Regression Testing, Dating App Development, Ecommerce App Development, Ride Booking App Development, 3rd Party SDK Integration, Realm Database, SQLite, MySQL, Firebase Cloud Firestore, Firebase Realtime Database, Kotlin, Swift, Java, Dart, SwiftUI, Twilio API, Mapbox, HealthKit, Alamofire, Google Analytics, Amazon Web Services, Butter Knife, Core Data, UIKit, MapKit

Is your app idea still sitting in notes, stuck in FlutterFlow, or already built but not working the way users expect? Either way, you are in the right place. Hello! I'm Emmanuel. A Flutter Developer, FlutterFlow Developer, AI App Developer, and Mobile UI UX Designer building clean, scalable mobile apps for startups, SaaS founders, coaches, marketplaces, service businesses, and teams. I do not hand off pretty screens that break when real users touch them. Every app I build is structured around the real product goal: clear user flow, smooth onboarding, secure backend logic, fast performance, and a mobile experience people can trust. Here's what that looks like in practice: 🚀 Built FlutterFlow app systems with Firebase authentication, Firestore databases, user roles, dashboards, and backend workflows. 🚀 Converted Figma designs into responsive FlutterFlow and Flutter mobile interfaces with clean UI, strong spacing, and smooth UX. 🚀 Integrated real app features like APIs, push notifications, subscriptions, payments, Google Maps, booking flows, chat, admin panels, and AI-powered workflows. 𝐌𝐘 𝐏𝐑𝐎𝐂𝐄𝐒𝐒: Most developers start with screens. I start with product logic. Before I build, I review what the app must do, who will use it, what data must be saved, and where users may get confused. Then every screen, action, and backend flow has one job: guide, process, or convert. Step 1 → Audit & Strategy: I review your idea, Figma file, current app, or FlutterFlow project and identify gaps in UI, UX, backend, database, API, or launch readiness. Step 2 → Structure: I map the screens, user roles, Firebase or Supabase database, authentication flow, app states, and key user actions. Step 3 → Build: I develop the app in Flutter, FlutterFlow, Firebase, Supabase, Dart, custom functions, custom code, or API workflows. Step 4 → Optimise: I test responsiveness, workflow logic, performance, database behavior, mobile usability, and broken edge cases before delivery. Step 5 → Launch Support: I help prepare the app for Play Store publishing, App Store submission, RevenueCat, Firebase setup, and production handoff. 𝐖𝐇𝐀𝐓 𝐈 𝐁𝐔𝐈𝐋𝐃: ✅ Flutter App Development → Custom iOS and Android apps with clean UI, scalable structure, backend integration, and smooth mobile performance. ✅ FlutterFlow App Development → MVPs, SaaS apps, booking apps, marketplaces, dashboards, AI apps, and business tools built fast without weak structure. ✅ Firebase & Supabase Integration → Authentication, Firestore, database rules, storage, real-time data, user profiles, and secure backend flows. ✅ AI Mobile Apps → AI chat, content generation, recommendation systems, automation flows, smart dashboards, and API-powered app features. ✅ Figma to Flutter / FlutterFlow → Mobile UI conversion with responsive layouts, modern design, clean spacing, and strong user experience. ✅ API, Payments & App Features → REST APIs, Stripe, RevenueCat, Google Maps, push notifications, chat, admin panels, and integrations. 𝐅𝐑𝐄𝐐𝐔𝐄𝐍𝐓𝐋𝐘 𝐀𝐒𝐊𝐄𝐃 𝐐𝐔𝐄𝐒𝐓𝐈𝐎𝐍𝐒 Q: Can you build my app in FlutterFlow instead of custom Flutter? Yes. FlutterFlow is a strong choice for MVPs, SaaS apps, marketplaces, booking apps, dashboards, and AI apps that need to move fast. Q: Can you fix or continue an existing FlutterFlow project? Yes. I can audit workflows, app state, Firebase, Supabase, API calls, layout issues, and backend logic without rebuilding everything from scratch. Q: Can you work from Figma designs? Yes. I convert Figma designs into responsive FlutterFlow or Flutter screens while keeping the interface clean, modern, and user-friendly. Q: Can you add AI features or handle deployment? Yes. I can integrate AI chat, content generation, automation, APIs, payments, push notifications, and help prepare your app for App Store or Play Store launch. If you need a Flutter Developer, FlutterFlow Developer, AI App Developer, or Mobile App Developer who can build more than screens, send me your app idea, Figma design, or current project. I will come back with a specific plan, not a generic pitch. TL;DR → Flutter Developer, FlutterFlow Developer, and AI App Developer. I build clean, scalable iOS and Android apps with Firebase, Supabase, APIs, payments, push notifications, AI features, dashboards, and launch-ready user flows. Flutter Developer || Flutter App Developer || FlutterFlow Developer || FlutterFlow Expert || Cross Platform App Developer || iOS App Developer || Android App Developer || Mobile App Developer || Firebase Developer || Supabase Developer || Dart Developer || Mobile UI UX Designer || Figma to FlutterFlow || Flutter Firebase || Flutter API Integration || Flutter MVP Developer || Flutter AI App || AI App Developer || Stripe Integration || RevenueCat Integration || REST API Integration || Firestore Database || Firebase Authentication || Admin Panel Development || App Deployment || App Store Submission || FlutterFlow Firebase || FlutterFlow Supabase.

Hi, I'm Berke, a full-stack engineer and the founder of Kentel, a software studio with 4+ years of experience shipping production-grade products for companies and startups worldwide. I don't just write code; I take ideas from concept to a live, scalable product across mobile, backend, AI, and even custom hardware. Clear communication, fast iteration, and ownership are what I bring to every project. 📱 Mobile · Cross-platform iOS & Android apps with Flutter & Dart · Pixel-perfect UI from Figma/Sketch, smooth, responsive, animation-rich · State management with BLoC & Provider, Clean Architecture ⚙️ Backend · High-performance APIs in Go and Node.js · Firebase (Auth, Firestore, Functions, Remote Config) & PostgreSQL · Full DevOps: Docker, Hetzner/VPS, Coolify, CI/CD, DNS, self-hosted services 🤖 AI Integration · LLM-powered features (Gemini, Claude, OpenAI) built into real apps · Computer vision pipelines (segmentation, classification, image processing) · AI image & video generation (fal.ai, Kling, diffusion models) 🔌 IoT & Hardware · End-to-end IoT products: Raspberry Pi, RFID, embedded systems · Custom hardware plus software (built a full RFID-based SaaS platform from PCB to mobile app) 🌐 Web · Next.js / React frontends, dashboards, and admin panels I've delivered work for clients ranging from individuals to enterprises, and I currently run two SaaS products of my own, so I understand product, not just code. Tell me what you're building and let's make it real.

🏆 Top-Rated Developer | 100% Job Success Score 🏆 🤚🏻Hello, this is Rajni, I'm a Flutter Developer with over 5+ years of experience in the development field from India. who loves making beautiful, outstanding Designs and apps. I believe communication is key to any successful project, and I can start your project right away. I am Available full-time (40 Hours/Week). ☑️ 𝗦𝘁𝗿𝗼𝗻𝗴𝗲𝘀𝘁 𝗦𝗸𝗶𝗹𝗹𝘀 ✅ Dart (Flutter) ✅ Flutter Flow ✅ Web Service Integration: HTTPS, RESTful, JSON/XML, SOAP ✅ Social Media Integration: Facebook, Twitter, LinkedIn, Google+ ✅ Cloud Service: AWS, Amplify, S3, EC2, Elastic Beanstalk, SNS, Cloud Watch, Elastic Load Balancers ✅ In-App Purchase and In-App Billing, Paypal, Stripe, Paytm, GPay, etc. ✅ Google Maps, Foursquare, Geolocation, GPS, Geofencing, Open Street Maps ✅ Push and Local Notification, Google Analytics, MixPanel, Socket.io, GainsightPX ✅ Barcode/QRCode recognition and generation ✅ MongoDB, MySql, SQLite, PostgreSQL ✅ Amazon, Heroku, Git, Bitbucket, TestFlight, GitHub, GitLab ✅ Trello, JIRA, Asana 𝗙𝗼𝗼𝗱 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆 𝗮𝗽𝗽, 𝗢𝗻-𝗱𝗲𝗺𝗮𝗻𝗱 𝗔𝗽𝗽, 𝗛𝗼𝗺𝗲 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗮𝗽𝗽, 𝗛𝗮𝗻𝗱𝘆 𝗺𝗮𝗻 𝗮𝗽𝗽, 𝗦𝗮𝗹𝗼𝗻 𝗮𝗽𝗽, 𝗕𝗲𝗮𝘂𝘁𝘆 𝗮𝗽𝗽, 𝗧𝗮𝘅𝗶 𝗮𝗽𝗽, 𝗥𝗶𝗱𝗲 𝗮𝗽𝗽, 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗮𝗽𝗽, 𝗗𝗮𝘁𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗛𝗲𝗮𝗹𝘁𝗵 𝗮𝗻𝗱 𝗳𝗶𝘁𝗻𝗲𝘀𝘀 𝗮𝗽𝗽, 𝗧𝗿𝗮𝘃𝗲𝗹 𝗮𝗽𝗽, 𝗠𝘂𝘀𝗶𝗰 𝘀𝘁𝗿𝗲𝗮𝗺𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗩𝗶𝗱𝗲𝗼 𝘀𝘁𝗿𝗲𝗮𝗺𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗙𝗶𝗻𝘁𝗲𝗰𝗵 𝗮𝗽𝗽, 𝗦𝗵𝗼𝗽𝗽𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗧𝗲𝗹𝗲𝗺𝗲𝗱𝗶𝗰𝗶𝗻𝗲 𝗮𝗽𝗽, 𝗙𝗶𝗻𝗮𝗻𝗰𝗲 𝗔𝗽𝗽, 𝗥𝗲𝗮𝗹 𝗲𝘀𝘁𝗮𝘁𝗲 𝗮𝗽𝗽, 𝗦𝗼𝗰𝗶𝗮𝗹 𝗺𝗲𝗱𝗶𝗮 𝗮𝗽𝗽, 𝗖𝗵𝗮𝘁 𝗮𝗽𝗽, 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗮𝗽𝗽, 𝗠𝗲𝘀𝘀𝗮𝗴𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗢𝗻𝗹𝗶𝗻𝗲 𝗰𝗼𝘂𝗿𝘀𝗲𝘀 𝗮𝗽𝗽, 𝗢𝗻𝗹𝗶𝗻𝗲 𝗲𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻 𝗹𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗧𝘂𝘁𝗼𝗿 𝗮𝗽𝗽, 𝗛𝗼𝘁𝗲𝗹 𝗯𝗼𝗼𝗸𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗢𝗻𝗹𝗶𝗻𝗲 𝗴𝗿𝗼𝗰𝗲𝗿𝘆 𝗼𝗿𝗱𝗲𝗿 𝗮𝗽𝗽 📱DOMAIN EXPERTISE 🌿 On-Demand 🌿 Finance 🌿 Business Automation 🌿 Retail 🌿 Healthcare 🌿 B2B/B2B2B/B2C 🌿 Logistic/Shipping 🌿 Supply Chain 🌿 Real Estate 🌿 E-commerce 🌿 Artificial Intelligence 🌿 Machine Learning 🌿 Safety Hazards Management 🌿 Chatbot Development 🌿 Environment/ Forest 🌿 Insurance ☑️ WHY CHOOSE ME? ✔ 100% Job success history ✔ ⭐ 5.0-star expert Developer ✔ Meeting deadlines effectively ✔ Perfectionist, professional, and friendly ✔ Clean-technology lover, interested in cutting-edge technologies ✔ Flexible time availability I'm happy to jump on a call to discuss things further Press the Green Button to invite me!

🏆 𝐑𝐞𝐜𝐨𝐠𝐧𝐢𝐳𝐞𝐝 𝐢𝐧 𝐭𝐡𝐞 𝐓𝐨𝐩 𝟑% 𝐨𝐟 𝐓𝐚𝐥𝐞𝐧𝐭 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤 𝐟𝐨𝐫 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 | 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 | 𝟗𝟖+ 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 | 𝟏𝟎+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 | 𝟖𝟖𝟎𝟎+ 𝐇𝐨𝐮𝐫𝐬 𝐁𝐢𝐥𝐥𝐞𝐝 | 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 | 𝐈𝐎𝐒 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 | 𝐀𝐈 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐀𝐈 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 | 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐦𝐞𝐧𝐭 ✅ Delivered 𝟗𝟖+ mobile apps using Flutter, Android & iOS with 5★ client ratings ✅ Integrated AI features (openAI) into live apps ✅ Developed e-commerce, healthcare, fintech, and travel apps for global clients ✅ Published 40+ apps on Google Play Store & Apple App Store with end-to-end deployment support I am a Mobile App Developer expert in Flutter mobile app development with hands-on expertise in Android (Jet pack compose), iOS (Swift), and AI-powered mobile solutions. With a strong background in UI/UX design, API integration, Firebase, REST/GraphQL, and AI model implementation, I create high-performance, scalable, and user-friendly apps that work seamlessly across platforms. I have delivered custom mobile applications in industries such as e-commerce, healthcare, fintech, travel, and education, ensuring top-notch performance and long-term maintainability. 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐒𝐭𝐚𝐜𝐤: ✔️Mobile App Development: Flutter, Dart, Kotlin,SwiftUi ✔️AI: OpenAI API ✔️Backend & API: Node.js, Python (FastAPI, Flask, Django), REST, GraphQL ✔️Databases: Firebase, Firestore, SQLite, MySQL, MongoDB ✔️Cloud Services: Firebase Cloud Functions, AWS, Google Cloud ✔️Version Control & Tools: Git, GitHub, GitLab, Bitbucket, Jira, Trello ✔️UI/UX Tools: Figma, Adobe XD, Material Design, Cupertino Widgets 𝐃𝐨𝐦𝐚𝐢𝐧 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: ◉ Dating App & Matchmaking App ◉ Grocery App ,Ordering Apps & Delivery App ◉ Food Delivery Apps& Restaurant App ◉ On-Demand Technician Service Apps ◉ Taxi & Ride-Hailing Apps ◉ Home Services & On-Demand App ◉ Event Planning & Booking Apps ◉ Service Provider Mobile Apps ◉ Bakery, Café & Restaurant Management Apps ◉ Chat, Messaging & Communication Apps ◉ Social Networking & Community Apps ◉ Health, Fitness & Wellness Apps ◉ Real Estate & Property Apps ◉ Salon Booking App & Beauty Service App 🔹 𝐂𝐚𝐩𝐚𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬: 𝐂𝐮𝐬𝐭𝐨𝐦 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 – Flutter, Android (Java/Kotlin), iOS (Swift/Objective-C) 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 – High-performance apps for both Android & iOS with single codebase 𝐒𝐨𝐜𝐢𝐚𝐥 𝐌𝐞𝐝𝐢𝐚 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 – Facebook, Google, Apple, Instagram, YouTube logins & APIs 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 & 𝐒𝐮𝐛𝐬𝐜𝐫𝐢𝐩𝐭𝐢𝐨𝐧 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 – PayPal, Stripe, Razorpay, Google Pay, Apple Pay, In-App Purchases, RevenueCat 𝐂𝐡𝐚𝐭, 𝐌𝐞𝐬𝐬𝐚𝐠𝐢𝐧𝐠 & 𝐂𝐚𝐥𝐥𝐢𝐧𝐠 – Real-time chat, audio/video calls, live streaming with Socket, Firebase, Twilio, Agora 𝐋𝐨𝐜𝐚𝐭𝐢𝐨𝐧-𝐁𝐚𝐬𝐞𝐝 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 – Google Maps, Places API, real-time tracking, geolocation 𝐀𝐈 & 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 – ChatGPT, OpenAI 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐀𝐏𝐈𝐬 – Node.js, Laravel, PHP, REST/GraphQL APIs 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 & 𝐀𝐮𝐭𝐡𝐞𝐧𝐭𝐢𝐜𝐚𝐭𝐢𝐨𝐧 Two-Factor Authentication (2FA), OAuth, Twilio, Mailgun 𝐐𝐑 & 𝐁𝐚𝐫𝐜𝐨𝐝𝐞 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐬– Custom generation, scanning, payment solutions 𝐀𝐩𝐩 𝐒𝐭𝐨𝐫𝐞 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 – Publishing apps on Google Play Store & Apple App Store with compliance 𝐌𝐚𝐢𝐧𝐭𝐞𝐧𝐚𝐧𝐜𝐞 & 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 – Bug fixing, performance tuning, feature upgrades I aim to provide 100% client satisfaction with clean code, fast delivery, and scalable solutions tailored to your business goals. If you are looking for a reliable Mobile Developer, let’s discuss your mobile app development project and bring your idea to life 🚀. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬: Flutter developer Flutter app developer Android app developer iOS app developer Cross-platform mobile developer Mobile app development AI mobile app developer Artificial intelligence app development Machine learning app integration Firebase app developer API integration Flutter Hybrid app developer AI solutions for mobile apps AI app developer Mobile App Developer Senior Mobile App Developer Mobile App Development Dating App Flutter Mobile App Development Education App Developer Mobile App Developer Saloon Booking Mobile App Development Dating mobile app development Food Delivery Mobile App Development AI App Development AI Mobile App Developer Chat Mobile App Developer Flutter Developer Chat Buddy Mobile App Development - AI App Development & Integration (Claude AI, GPT-4/5, OpenAI API, Chatbots, Automation)

Struggling with slow apps, frequent crashes, or poor user experience? Most mobile apps fail because they’re built without scalability, performance, or real users in mind. I help startups and businesses build high-performance, production-ready mobile apps using Flutter for Android and iOS. My approach is simple: I don’t just code, I focus on making your app fast, stable, and scalable while ensuring it meets real business needs. Here’s how I work: End-to-End App Development: From UI/UX to backend integration Clean & Maintainable Code: Using best practices so your app grows with your business Firebase & API Integration: Secure, fast, and real-time solutions Performance & UX Optimization: Apps that run smooth under real-world conditions What I help with: Fixing Flutter app issues & performance optimization Building scalable Flutter applications from scratch Flutter + API integration (REST APIs, JSON) Flutter + Firebase (auth, database, notifications) Flutter + backend development Flutter + Google Cloud integration Payment gateway integration UX-focused mobile app design With 10+ years of experience, I’ve helped clients launch apps that delight users, reduce crashes, and scale effortlessly. If your app is lagging, buggy, or not meeting user expectations, I can fix it, or build a new one that just works, from MVP to full product. 💬 Let’s discuss how to make your app faster, smoother, and more scalable, so your users love it and your business grows.

Hi, I’m Nesrine, a Flutter developer focused on fixing, improving, and publishing mobile apps for Android and iOS. I help clients with: • Fixing bugs and crashes • Improving UI and layout issues • Adding new features • API integration (REST, Firebase) • Performance optimization • Google Play & App Store publishing I’ve worked on multiple production apps and understand how important stability, responsiveness, and clean code are for mobile projects. I communicate clearly, respond quickly, and stay fully dedicated until the task is completed properly. If your Flutter app needs fixes, improvements, or help getting published, I’m ready to start immediately.

I'm a Mobile App Developer with 8 years building Flutter apps for iOS and Android, specializing in backend integration, device connectivity, and real-time data sync. I started as a native Android developer and moved into Flutter as it matured, so I bring both deep native platform knowledge and modern cross-platform speed to every project. I've built and led development on apps across e-commerce, property management, parking and IoT, and compliance technology, including a connected app for supervised-release monitoring (device pairing, live location tracking, automated check-ins) and a property management platform with real-time listings and a cloud backend. What I can help you with: 1. MVP development for startups: from design files to a published, working app 2. Bluetooth and IoT integration: device pairing, real-time data sync, hardware-to-app communication 3. Authentication, cloud database, push notifications, and analytics setup 4. REST API and WebSocket backend integration 5. Payment gateway integration and in-app purchases 6. Offline-first apps with local storage and sync 7. Bug fixing, performance optimization, and codebase refactoring 8. App publishing and release management Technical skills: Flutter, Dart, Kotlin, Swift, Java, state management (BLoC, Provider, Riverpod, GetX), cloud backend services, maps and location services, local databases, and version control. Why clients work with me: Top Rated Plus freelancer on Upwork with a consistent delivery track record Named Best Android Developer of the Year at a previous company Experience leading development teams, not just writing code solo Clear, consistent communication and realistic timelines Ongoing post-launch support when needed If you need a mobile app developer who can take ownership of your project end-to-end, from architecture to launch, I'd be glad to discuss what you're building.

More than 5+ years of work experience in software development with a depth understanding of Object Oriented programming. More than 4+ years of experience in building both IOS and Android mobile applications via flutter with skills and qualifications of designing, developing, testing, maintaining, and deploying. - RESTFUL APIs and integration of various APIs from third parties. - Comfortable using test cases for debugging code, enhancing performance and reliability. - Good understanding of bloc, Getx, riverpod state managements, Flutter flavors and app architecture. - Solid understanding of the Agile software development life cycle and been exposed to Scrum projects. - Familiarity using version control tools , Azure for repository and CI/CD in order to upload to Appstore testflight and playstore. - Strong communications and consultative skills. Self-initiated and proactive.