Hire the Best Flutter Developers in Karachi, PK

Senior Flutter Developer with 5+ years of experience building production mobile applications for startups and enterprise banking systems. Currently developing and maintaining banking applications used by financial institutions in Bahrain, with a strong focus on performance, stability, and clean architecture. I can help you with: ✔ Flutter app development ✔ Firebase integration ✔ REST API integration ✔ Bug fixing & debugging ✔ Performance optimization ✔ State management (mention yours: BLoC, Riverpod, Provider, etc.) ✔ App Store & Google Play releases ✔ Clean architecture Whether you need a critical bug fixed or a complete mobile application, I focus on writing maintainable code and communicating clearly throughout the project. Let's build something great.

Are you looking for a Senior Flutter Developer who can translate your business requirements into a robust, high-performance, and pixel-perfect mobile app? Or do you need a developer who can step into an existing project, solve complex bugs, and take it successfully to the App Store and Google Play Store? If so, let’s talk! I am a Software Engineer with a Bachelor’s degree in Software Engineering and 5+ years of professional experience specializing in Flutter development for iOS, Android, and Web. Over the years, I have successfully delivered high-quality cross-platform applications for startups, corporate clients, and global businesses. From building complex audio-visual language learning tools to integrating computer vision motion tracking for fitness apps and communicating with external hardware via Bluetooth Low Energy (BLE), I specialize in tackling the hard technical challenges that other developers struggle to solve. WHY WORK WITH ME? Proven Client Satisfaction: 100% Job Success Score (JSS) with a track record of 5-star reviews on Upwork. Engineering Background: Holder of a Bachelor of Engineering (B.E.) in Software Engineering, meaning I write clean, structured, and scalable code—not just spaghetti scripts. Published Package Author: Active contributor to the Flutter community with published packages on pub.dev. End-to-End Delivery: I guide you through the entire lifecycle—from design and system architecture to Store Deployment (App Store Connect / Play Console) and post-launch maintenance. WHAT I CAN DO FOR YOU Full-Cycle App Development: Architecture, frontend state management, API integration, and app store deployment. Performance Optimization & Bug Fixing: Troubleshooting complex memory leaks, UI lag, and deep-seated OS-level integration bugs (iOS and Android). Hardware & BLE Integration: Connecting apps to external hardware devices via Bluetooth Low Energy (BLE) to transmit and receive secure commands. Advanced Media & Audio Players: Building customizable audio/video streams, offline downloads, and real-time players. Third-Party API & Payment Gateways: Secure payment integrations with Stripe, Google/Apple In-App Purchases, Maps & Directions API, and real-time WebRTC calling. RECENT WORK HIGHLIGHTS Here are a few notable projects I have built and delivered: 📱 Lango: A language learning app where users capture vocabulary from native speakers using video/audio recordings, build customized note-cards, and share content globally. 🧘 Fitness Tracking (Carpe Diem): Integrated sency_motion computer vision technology to track body movement correctness and count exercise repetitions in real-time. 🎧 Beej & xHalal: High-performance community and utility platforms featuring scripture verse players, audio lessons, offline downloads, location-based prayer tracking, Qibla finders, and built-in Quran readers. ⚖️ Ubelaw: A secure, chat-based legal consultation and case management platform integrated with Stripe for secure client billing. 🗺️ IoT Trip Planner: Developed a smart routing app that calculates real-time toll and fuel costs using Google Directions API. MY TECHNICAL STACK Frontend: Flutter, Dart, Responsive Design, Material UI, Cupertino Widgets State Management: Bloc/Cubit (Expert), Provider, Riverpod, GetX Architecture: Clean Architecture, SOLID Principles, Modular Design Backend & Database: Firebase, Supabase, NodeJS, NextJS, PHP Laravel, MySQL, Mongoose, PostgreSQL, SQL Integrations: Stripe, In-App Purchases (IAP), Google Maps API, Bluetooth (BLE), Push Notifications, WebRTC, Localization (i18n) DevOps: Git, GitHub, GitLab, App Store Connect, Google Play Console HOW WE WILL WORK TOGETHER I believe that communication is the foundation of a successful project. Here is what you can expect from me: Clear, Proactive Communication: Regular progress updates, screencasts, and quick response times. Honest Milestones: Realistic timelines and transparent project scope discussions. Maintainable Codebase: Fully documented, clean code that any future developer can easily build upon. Let’s turn your vision into a premium, high-performing app. Send me a message or click "Invite to Job" to schedule a brief discovery call!

⭐ ⭐ ⭐ ⭐ ⭐ "Excellent programmer with good work habits and structured thinking." 𝗡𝗲𝗲𝗱 𝗮 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗿𝗲𝗮𝗱𝘆 𝗶𝗢𝗦/𝗔𝗻𝗱𝗿𝗼𝗶𝗱 𝗮𝗽𝗽 𝗳𝗮𝘀𝘁? Look no further. I specialize in 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗮𝗻𝗱 𝘀𝗵𝗶𝗽𝗽𝗶𝗻𝗴 𝗳𝗮𝘀𝘁, so you get your app in front of real users ASAP and get their feedback just as quickly. Then grow your product around what your users actually want, saving you time and money. You will get production-ready 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 𝗮𝗻𝗱 𝗶𝗢𝗦 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀 built by a 𝗦𝗲𝗻𝗶𝗼𝗿 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 𝟲+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 across freelance and agency environments. I build with clean architecture practices, so you get an app that's reliable, maintainable, and scalable, with a foundation you can grow on. I use Flutter to build for both Android and iOS from a single codebase, so you save half the cost of two native apps. 📱 𝗦𝗲𝗲 𝘁𝗵𝗲 𝗽𝗿𝗼𝗼𝗳, 𝗻𝗼𝘁 𝗷𝘂𝘀𝘁 𝗽𝗿𝗼𝗺𝗶𝘀𝗲𝘀 I've shipped real, live apps you can download and test right now: Makula, Kaizen, Digital Permit Book, and Coralis Health. All on the App Store and Google Play. Check the portfolio section below to try them yourself. ✅ 𝗪𝗲'𝗿𝗲 𝗮 𝗴𝗿𝗲𝗮𝘁 𝗳𝗶𝘁 𝗶𝗳 𝘆𝗼𝘂'𝗿𝗲 𝘁𝗵𝗶𝗻𝗸𝗶𝗻𝗴 "I need a 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 developer who takes full ownership." "I need to launch on iOS and Android fast." "I want AI features in my app, but don't know where to start." "I need a production-ready 𝗠𝗩𝗣 in weeks, not months." "I need payments and subscriptions" → Stripe, RevenueCat, and in-app purchases done right. "My app is slow or buggy" → refactoring, performance tuning, and bug rescue. 🛠️ 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 Mobile: Flutter, Dart, Android, iOS Architecture: Clean Architecture, BLoC AI: Voice-to-text, summarization, LLM/OpenAI APIs Backend & Cloud: Firebase, Supabase, Node.js, REST APIs Web: React.js, Next.js, TypeScript Native: Push notifications, Stripe, RevenueCat & in-app subscriptions ⭐ 𝗪𝗵𝗮𝘁 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘀𝗮𝘆 "Excellent programmer with good work habits and structured thinking." (𝟱-𝘀𝘁𝗮𝗿 𝗿𝗲𝘃𝗶𝗲𝘄) 🔢 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗰𝗵𝗼𝗼𝘀𝗲 𝗺𝗲: - 𝗙𝘂𝗹𝗹 𝗼𝘄𝗻𝗲𝗿𝘀𝗵𝗶𝗽: I build everything from design to deployment ui/ux design, mobile app, web app, website, backend, and deployment. - 𝟬 𝘁𝗼 𝟮 𝗵𝗼𝘂𝗿 𝗿𝗲𝘀𝗽𝗼𝗻𝘀𝗲 𝘁𝗶𝗺𝗲: you'll never be left waiting - 𝗡𝗘𝗗 𝗨𝗻𝗶𝘃𝗲𝗿𝘀𝗶𝘁𝘆 𝗕𝗘𝗻𝗴 (𝗘𝗹𝗲𝗰𝘁𝗿𝗶𝗰𝗮𝗹): Pakistan's top engineering institution 📈 𝗛𝗼𝘄 𝘄𝗲'𝗹𝗹 𝘄𝗼𝗿𝗸 We start with a quick discovery call to discuss scope, timeline, and priorities. Then we set clear milestones with regular check-ins, so you always know where things stand. We finish with a tested, store-ready app deployed on both the Play Store and App Store. 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗴𝗲𝘁 𝘀𝘁𝗮𝗿𝘁𝗲𝗱? Hit the "Invite to Job" button at the top right, send over your requirements or designs, and we'll get things rolling. 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀: Ride Sharing · Fitness & Health · Healthcare · AI Coaching · Food Delivery · E-commerce · Fintech · Social Networking · SaaS · Real Estate · EdTech · Enterprise B2B · Startup MVP 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Mobile App Development · Mobile App Developer · Mobile App Development Consultation · AI Mobile App Development · Cross-Platform App Development · Hybrid App Development · Web Development · iOS Development · Android App Development · iPad App Development · Flutter Developer · Full Stack Developer · Next.js Developer · React.js Developer · Supabase Developer · MVP Development · Custom Mobile App Development · AI-Powered App Development · ChatGPT Mobile Integration · OpenAI API Mobile App · Mobile App Development for Startups · Mobile App Development for Enterprises · App Development · Mobile App Design · Web App Design · API Integration · Senior Mobile App Developer · Ride Sharing App Development · Fitness App Development · Healthcare App Development · Food Delivery App Development · E-commerce Mobile App · Fintech Mobile App · AI Mobile App Development

𝐇𝐞𝐫𝐞'𝐬 𝐭𝐡𝐞 𝐝𝐞𝐚𝐥: Share your idea, and we’ll turn it into a functional, scalable, and beautifully designed app that solves real problems and generates revenue. 𝗛𝗼𝘄 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗠𝗼𝘃𝗲𝘀 𝗙𝗿𝗼𝗺 𝗜𝗱𝗲𝗮 𝘁𝗼 𝗟𝗶𝘃𝗲 𝗣𝗿𝗼𝗱𝘂𝗰𝘁: Every project follows a clear, proven journey, divided into milestones: UI/UX design → Front-end development → Backend development → Deployment → Post-launch maintenance (8 weeks FREE) This ensures transparency, predictable delivery, and zero surprises. ---------------------------------------------- I offer a 𝗳𝗿𝗲𝗲 𝟯𝟬-𝗺𝗶𝗻𝘂𝘁𝗲 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 to discuss and refine your idea, recommend the right tech stack, and forecast any ongoing costs as your user base grows, so you avoid surprises and make informed decision with clarity. ---------------------------------------------- Words from a recent client after working with us: (check more on my profile below) "Noman Razzaq 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙥𝙧𝙤𝙛𝙚𝙨𝙨𝙞𝙤𝙣𝙖𝙡 𝙖𝙣𝙙 𝙞𝙨 𝙖𝙡𝙬𝙖𝙮𝙨 10 𝙨𝙩𝙚𝙥𝙨 𝙖𝙝𝙚𝙖𝙙 𝙤𝙛 𝙠𝙣𝙤𝙬𝙞𝙣𝙜 𝙬𝙝𝙖𝙩 𝙩𝙝𝙚 𝙗𝙪𝙞𝙡𝙙 𝙣𝙚𝙚𝙙𝙨. 𝙒𝙚 𝙖𝙧𝙚 𝙘𝙤𝙣𝙩𝙞𝙣𝙪𝙞𝙣𝙜 𝙩𝙤 𝙬𝙤𝙧𝙠 𝙩𝙤𝙜𝙚𝙩𝙝𝙚𝙧 𝙖𝙣𝙙 𝙄 𝙝𝙖𝙫𝙚 𝙖𝙡𝙧𝙚𝙖𝙙𝙮 𝙧𝙚𝙘𝙤𝙢𝙢𝙚𝙣𝙙𝙚𝙙 𝙝𝙞𝙢 𝙩𝙤 𝙤𝙩𝙝𝙚𝙧 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨." ⭐⭐⭐⭐⭐ - 𝘼𝙡𝙞𝙘𝙞𝙖 𝘾𝙤𝙬𝙖𝙣 𝙁𝙤𝙪𝙣𝙙𝙚𝙧 𝙈𝙚𝙨𝙢𝙚𝙧 (𝙐𝙣𝙞𝙩𝙚𝙙 𝙆𝙞𝙣𝙜𝙙𝙤𝙢) ---------------------------------------------- I've majored in software engineering, and I've used a myriad of technologies to help various businesses create mobile apps that have generated millions in revenue. Over the past 5+ years, I have developed a wide range of iOS and Android mobile apps. ✅ Food delivery app ✅ Ride booking app (like Uber) ✅ Real estate listing app (Like Airbnb) ✅ Social media mobile app (like TikTok/Instagram) ✅ Startups/Investment management mobile app ✅ Wellness mobile app ✅ Fitness and Nutrition mobile app (like CalAI, MyFitnessPal) ✅ Sports mobile app ✅ E-commerce mobile app ✅ Language Learning Mobile App (Like Duolingo) ✅ Event management mobile app ✅ Grocery/Meal Planning mobile app ✅ Freelance mobile app ✅ Service Booking Mobile App (Home/HVAC) ✅ Inventory Management Mobile App ✅ Learning Management Mobile App ✅ Appointment Booking Mobile App (Salon/Doctor) ✅ Venue Booking Mobile App (Sports/Events) ✅ Task Management Mobile App (Project Management/To-Do) ✅ On-Demand Custom Mobile Apps ---------------------------------------------- As your 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗽𝗮𝗿𝘁𝗻𝗲𝗿, I go above and beyond to ensure your app’s success, from concept to launch. What I Also Bring Beyond Development: → Technology & architecture consulting → Product roadmap & feature prioritization → Help you understand any possible ongoing costs with the project → Cost-effective tech stack selection with long-term cost planning → Scalability strategy as your user base grows → Technical support during investor or stakeholder discussions ---------------------------------------------- 𝗠𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲 & 𝗟𝗼𝗻𝗴-𝗧𝗲𝗿𝗺 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 I provide free post-delivery support for 8 weeks, followed by flexible maintenance plans based on your product needs, usage scale, and future roadmap, always discussed transparently. ---------------------------------------------- 🚀 If you’re looking for someone who understands your product, owns outcomes, communicates clearly, and thinks long-term, let’s connect and build something solid. ❗❗ Check out my portfolio! ❗❗ Highlighted Skills: Full Stack Developer | Expert Full Stack Developer | Full Stack Mobile App Developer | Full Stack AI Developer | Expert Full Stack Mobile App Developer | Mobile Developer | iOS Developer | Android App Developer | Mobile App Development | Cross platform development | AI App Developer | AI App | Mobile Developer | App Developer | Mobile App Development Consultation | IT Consultation | App Developer | AI App Developer | iOS App Development | iOS App | Android App Development | Hybrid App development | Mobile App Development Consultation | Flutter | Firebase | Dart | Flutter Dart | Flutter Firebase | iOS Development | Android App Development | Smartphone | User Authentication | In App Purchases | API Integration

💡 𝗧𝘂𝗿𝗻𝗶𝗻𝗴 𝗶𝗱𝗲𝗮𝘀 𝗶𝗻𝘁𝗼 𝗵𝗶𝗴𝗵-𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗶𝗻𝗴 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 𝗮𝗽𝗽𝘀 𝘁𝗵𝗮𝘁 𝘂𝘀𝗲𝗿𝘀 𝗹𝗼𝘃𝗲. I’m a 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 𝟱+ 𝘆𝗲𝗮𝗿𝘀 of experience building cross-platform iOS and Android apps that are fast, scalable, and visually engaging. I don’t just write code I solve real user problems, combining smooth UI/UX, robust backend integration, and scalable architecture to create apps that grow with your business. 𝗜’𝘃𝗲 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 𝟯𝟬+ 𝗮𝗽𝗽𝘀, from MVPs to full-scale platforms, including AI-powered features, real-time functionalities, and complex API integrations, ensuring your app performs flawlessly and delights users. 🏆 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗢𝗳𝗳𝗲𝗿 • Flutter Mobile App Development (iOS & Android) • UI/UX Design & Clickable Prototypes (Figma → Flutter) • Backend Integration (Firebase, Supabase, Custom APIs) • Real-Time Features, Push Notifications & Third-Party Integrations • App Testing, Debugging & Publishing to App Store & Google Play • Long-Term Support, Updates & Feature Enhancements ⚙️ 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 Mobile Development: Flutter, Dart, Swift, Kotlin, Java Backend & Databases: Firebase (Auth, Firestore, Storage, Functions), Supabase, REST APIs, MySQL, PostgreSQL, MongoDB UI/UX: Flutter Widgets, Material & Cupertino, Figma → Flutter, Clean & Modern Mobile Design AI & Automation: OpenAI / ChatGPT Integration, Predictive Features & Smart Automation 🌍 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜’𝘃𝗲 𝗪𝗼𝗿𝗸𝗲𝗱 𝗪𝗶𝘁𝗵 E-Commerce, Healthcare, Fitness, Social Media, Dating, Education, Real Estate, Finance, Delivery & Travel Apps, Event Management, and more. 💡 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗛𝗶𝗿𝗲 𝗠𝗲 • Clean, maintainable, and scalable Flutter architecture • Transparent communication with weekly updates • Fast development cycles with high-quality production-ready code • Collaborative, reliable, long-term partnership mindset 🚀 If you want a Flutter developer who can turn your concept into a polished, production-ready app let’s work together and bring your app idea to life!

I build complete web and mobile products from responsive websites and web apps to cross-platform mobile apps handling both the frontend users see and the backend that powers it. As a full-stack and mobile developer, I cover the entire stack, so you get one reliable developer instead of juggling several: 🔹 Full-Stack Web: React & Next.js on the frontend, Node.js & Express on the backend (REST APIs, authentication, databases, scalable architecture) 🔹 Mobile Apps: Flutter & React Native (one codebase for both iOS and Android) 🔹 Backend & APIs: Node.js services, database design (MongoDB / SQL), secure auth 🔹 Integrations: Stripe & payment gateways, Firebase, and third-party APIs 🔹 Ongoing work: bug fixes, performance optimization, and new features on existing web or mobile projects What you can expect working with me: ✅ Clear, regular communication: you always know where your project stands ✅ Clean, maintainable code that's easy to build on later ✅ Delivery on time, with the details done right the first time Every client I've worked with so far has rated the experience 5.0 out of 5, and I intend to keep it that way. Whether it's a website, a web app, or a mobile app new build or scaling an existing product send me a few details about your project and I'll reply with a clear plan and honest timeline.