💥 Over the last 8+ years, I’ve helped build and scale SaaS platforms, marketplaces, operational systems, dashboards, AI-powered workflows, and internal business tools used by real teams and customers daily. I specialize in building products that are fast, scalable, maintainable, and production-ready — whether that means architecting complex backend systems, building clean frontend experiences, integrating APIs, or stabilizing growing platforms. 🔥 Here’s what clients say about me: ✅ “Matarr is very knowledgeable and able to perform efficiently. We could not ask for better help. He is worth every penny that he charged.” - ✅ "We have finally launched our product, just a few months ago we were rooted in bugs and difficult-to-maintain code, now everything just works." - How I operate: First nail it, then scale it! Relevant experience: ✔ Full-stack SaaS platforms ✔ Marketplace and ERP systems ✔ AI-powered workflows and automation ✔ Operational/admin tooling ✔ Real-time dashboards and analytics ✔ Mobile applications ✔ API integrations and scalable backend systems ✔ Custom Email marketing solutions Core stack: React, Next.js, TypeScript, Node.js, PostgreSQL, Firebase, Supabase, React Native, Tailwind, OpenAI/Claude/Gemini integrations. Additional experience: ✔ Playwright/Puppeteer scraping systems ✔ Stripe and payment systems ✔ Google Maps and geolocation systems ✔ Twilio/email notification workflows ✔ Role-based systems and permissions ✔ Production debugging and performance optimization

Android App Developer with 5+ years of experience building scalable, user-friendly, and high-performance native Android applications. I help startups, businesses, and entrepreneurs turn app ideas into real products — from MVP development to bug fixing, feature upgrades, API integration, Firebase setup, and Play Store publishing. ## What I Can Help You With: ✔ Native Android App Development (Java / Kotlin) ✔ Firebase Authentication / Database / Notifications ✔ REST API Integration ✔ UI Development from Figma / XD Designs ✔ Bug Fixing & Crash Resolution ✔ Performance Optimization ✔ Payment Gateway Integration ✔ Play Store Submission & Updates ✔ Ongoing App Maintenance ## Why Clients Hire Me: ✔ Clean, maintainable code ✔ Fast and clear communication ✔ Reliable delivery timelines ✔ Attention to UI details ✔ Long-term support after delivery If you need a dependable Android developer ho understands both business goals and technical execution, I’d be happy to discuss your project.

I build 𝗵𝗶𝗴𝗵-𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀 for iOS and Android, focused on scalability, clean architecture, and smooth user experience. I help startups and businesses turn ideas into 𝗿𝗲𝗹𝗶𝗮𝗯𝗹𝗲, 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗿𝗲𝗮𝗱𝘆 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀. 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 (𝗶𝗢𝗦 & 𝗔𝗻𝗱𝗿𝗼𝗶𝗱) I’m a 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 with 𝟲+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 building scalable and user-friendly mobile applications for iOS and Android. I work with startups and businesses to develop apps that are not only visually polished but also 𝘀𝘁𝗮𝗯𝗹𝗲, 𝗺𝗮𝗶𝗻𝘁𝗮𝗶𝗻𝗮𝗯𝗹𝗲, 𝗮𝗻𝗱 𝗿𝗲𝗮𝗱𝘆 𝗳𝗼𝗿 𝗿𝗲𝗮𝗹 𝘂𝘀𝗲𝗿𝘀. I’ve delivered 𝟮𝟬+ 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀, handling everything from app architecture and API integration to Firebase backend services and App Store / Play Store deployment. My focus is always on 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲, 𝗰𝗹𝗲𝗮𝗻 𝗰𝗼𝗱𝗲, 𝗮𝗻𝗱 𝗹𝗼𝗻𝗴-𝘁𝗲𝗿𝗺 𝗺𝗮𝗶𝗻𝘁𝗮𝗶𝗻𝗮𝗯𝗶𝗹𝗶𝘁𝘆. 𝗠𝘆 𝗖𝗼𝗿𝗲 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 - Flutter mobile app development (iOS & Android) - App development from scratch or existing app improvement - Firebase integration (Authentication, Firestore, Storage, Push Notifications) - REST API & third-party integrations - State management (Bloc, Provider, Riverpod) - Custom UI & responsive Flutter layouts - In-app search & filtering - Real-time features & chat functionality - Media upload & file storage - App Store & Play Store deployment - Bug fixing, performance optimization & maintenance 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜’𝘃𝗲 𝗪𝗼𝗿𝗸𝗲𝗱 𝗪𝗶𝘁𝗵 - E-commerce & Retail - Logistics & Delivery - Healthcare - Education & E-learning - Finance & Fintech - Real Estate - On-demand service apps - Event & booking platforms 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲? - Flutter-focused mobile app development expertise - Clean, scalable, and well-structured code - Clear communication with regular progress updates - Reliable delivery with realistic timelines - Long-term support after app launch 𝗟𝗲𝘁’𝘀 𝗚𝗲𝘁 𝗦𝘁𝗮𝗿𝘁𝗲𝗱 If you’re looking for a 𝗿𝗲𝗹𝗶𝗮𝗯𝗹𝗲 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 to build or improve your application, feel free to message me with: - Your app idea or existing app - Target platforms (iOS / Android) - Timeline and goals I’ll review your requirements and suggest the 𝗯𝗲𝘀𝘁 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗮𝗽𝗽𝗿𝗼𝗮𝗰𝗵 for your project.

Hi, I help startups and businesses build scalable, high-performance Flutter apps that are ready for real users, not just prototypes. With 7+ years in mobile development, I specialize in turning ideas into production-ready apps with clean architecture, smooth UI, and reliable backend integration. What I can help you with: * Build Flutter apps from scratch (MVP → scalable product) * Improve or fix existing apps (performance, bugs, UI issues) * Integrate APIs, Firebase, and third-party services * Add AI-powered features (OpenAI integrations, smart workflows) * Publish apps on App Store & Play Store (compliance included) 💡 Why clients work with me: * Focus on scalable architecture(not quick hacks) * Clean, maintainable code for long-term growth * Fast communication and reliable delivery * Experience across E-commerce, AI apps, Health & Wellness 📊 Recent impact: * Built and launched multiple production apps across industries * Improved app performance and reduced crashes in existing projects * Helped startups move from idea → live app successfully If you’re looking for a developer who understands both technology and product thinkin, I can help you build something that actually works in the real world. 📩 Send me your idea or current app details, I’ll suggest the best way to move forward.

I help startups, founders, and businesses build production-ready mobile apps and web platforms from React Native & Flutter apps to Laravel backends, SaaS dashboards, and API integrations. Top Rated Plus | 5,000+ Hours. Whether you need an MVP built from scratch or an existing platform improved and scaled, I cover the full stack- mobile frontend, web frontend, backend APIs, database design, server deployment, and third-party integrations. What I can build for you: Mobile Apps • React Native apps for iOS & Android • Flutter cross-platform mobile apps • Social platforms, marketplace apps, booking systems • Push notifications, real-time features, in-app payments Web & Backend • Laravel backend APIs and admin panels • React.js web apps and SaaS dashboards • Multi-tenant platforms, CRM systems, LMS platforms • REST API development and third-party integrations Integrations & Payments • Stripe & PayPal payment gateway integration • Firebase authentication and real-time database • Google Maps, Twilio, and third-party APIs • Meta (Facebook/Instagram) API integrations Tech Stack: • Mobile: React Native, Flutter • Frontend: React.js, JavaScript, HTML, CSS • Backend: Laravel, Node.js, PHP • Database: MySQL, PostgreSQL, Firebase • DevOps: Linux servers, Nginx, SSL, deployment • Payments: Stripe, PayPal • APIs: REST, GraphQL, Google Maps, Twilio What you can expect working with me: • Clean, scalable architecture from day one • Clear communication throughout the project • Reliable delivery, no disappearing acts • Full support from idea to launch and beyond • Comfortable working in existing codebases, not just greenfield projects I work best with startups, product owners, and growing businesses that need a reliable developer who understands both the technical and business side of building software. If you have a mobile app or web platform you need built, improved, or scaled, I'd be happy to discuss your project.

I help businesses build and ship web apps, and I wire AI into them so they actually save time instead of just looking good in a demo. 7+ years building with TypeScript across React, Angular, Node, and Firebase. A big part of my work now is AI integration: connecting GPT, Claude, and Gemini into real workflows, building agents that handle repetitive tasks, and automating the slow parts of your operations so your team can spend time elsewhere. What I can help with: - Full builds, front end to back end, including DevOps and deployment - AI integration and custom agents (OpenAI, Claude, Gemini, AWS Bedrock) - Workflow automation and CRM setup (Zoho, HubSpot, Salesforce, GoHighLevel) - Payment and data integrations (Stripe, Plaid, PayPal, Google Maps) - Maintaining, fixing, and extending apps you already have I keep communication clear and steady throughout. You'll always know where the project stands, and you won't have to chase me for updates. My stack: Front end: React, Next, Angular, NgRx, Redux, Vue Back end: Node, Express, Nest, GraphQL, REST, Lambda, Cloud Functions, Firebase Databases: MySQL, MSSQL, Postgres, MongoDB, Firestore, Supabase Cloud and DevOps: AWS (EC2, S3, Beanstalk, Route 53, Bedrock), GCP, Azure, Docker, CI/CD Testing: Jest, Jasmine Tools: GitHub, GitLab, Bitbucket, Jira, Trello, Asana, ClickUp, Monday Send me a message and tell me a bit about your project. Happy to answer any questions before we start.

My UPWORK achievements : ✅Hours Logged: 3860+ ✅Delivered jobs: 12+ ( 99% JSS Top Rated ) ✅JSS: 99% with TOP RATED PLUS Badge. Committed to delivering top-notch quality Mobile App and services. 7+ years of experience in Next.js, React.js & React Native, HTML 5, JavaScript, CSS3, UI/UX, development. Also I have 3+ years of experience in Artificial Intelligence, Machine Learning, LLM, Data Science, Firebase, Sentry, AWS, SQLite, PostgreSQL, MongoDB etc. I can Also Help with: Integrating Restful API | Third-party API | Push notifications | Google map, GPS, and location views | Social Media integration Proven freelance experience. I'm completely aware of the end-to-end process of submitting apps to app stores and work with you to resolve all your queries. My core competencies are excellent programming skills and good communication So let's talk!

🚀 Senior Flutter & React Native Mobile Engineer (iOS & Android) I build high-performance, production-ready mobile apps using Flutter and React Native for startups and businesses that need scalable, reliable, and modern mobile products. With 5+ years of experience in Flutter and React Native development, I specialize in building clean, scalable architectures, smooth UI/UX, real-time systems, API integrations, payments, and full App Store & Play Store deployment. I focus on building Flutter and React Native applications that are fast, stable, maintainable, and ready for real users at scale — not just MVP prototypes. What I do: • Flutter & React Native app development • Cross-platform Flutter & React Native apps for iOS & Android • Flutter & React Native UI/UX implementation • Firebase, REST APIs & backend integration in Flutter & React Native • Real-time chat, push notifications & maps integration • Payment gateways & subscription systems • Flutter & React Native app performance optimization • Bug fixing, scaling & maintenance of existing apps • App Store & Google Play Store deployment • Clean architecture & reusable component development • Third-party SDK and native module integration Why clients hire me: ✔ Strong expertise in Flutter & React Native ✔ Clean, scalable, and maintainable code ✔ Performance-focused mobile development ✔ Product + engineering mindset ✔ Clear communication & ownership ✔ Long-term reliable solutions ✔ Experience building production-level Flutter & React Native apps ✔ Fast delivery with attention to quality and stability

I build Flutter apps people actually depend on. The Courier App runs 6,000+ UK drivers on code I shipped, and Calcount has 1,000+ users in Australia. 100% Job Success, Top Rated, and I get apps through App Store review on the first try. 🚀 I go deepest on the parts most devs avoid; real-time, payments, hardware; here's the full kit: 📹 Video Calling: Agora, Zego, VideoSDK.live, Jitsi, WebRTC 📞 VoIP: SIP calling and real-time communication 📡 BLE: ESP32-WROOM-32D, Nordic nRF52840, Adafruit Bluefruit nRF52, Keil 💳 Payments: Stripe, In-App Purchases, RevenueCat ☁️ AWS: EC2, CloudFront, S3, Route53, SNS, SES, MediaConvert ⚡ Supabase: Edge Functions, Auth, Realtime, the full stack 🔥 Firebase: Cloud Functions, Cloud Console, Firestore, FCM, Analytics 🗺️ Maps: Google Maps, Mapbox, OpenStreetMap, live tracking, geofencing, navigation 🎬 Media: FFMPEG, HLS streaming, AWS MediaConvert 🤖 AI: OpenAI, Gemini, Claude, YouTube Transcript APIs 🔐 Auth: Email/Password, Phone OTP, Google, Apple Sign-In 💬 Realtime Chat: SocketIO, WebSockets, Google gRPC Protocol Buffers 🗄️ Backend: Node.js, NestJS, Laravel, Django, MongoDB, PostgreSQL 🔔 Notifications: OneSignal, Firebase Push Notifications 🔗 Deep Linking and Referral Systems 📊 Monitoring: Sentry, PostHog (used on every project) 🔄 CI/CD: GitHub Actions, Azure Pipelines 🏗️ Architecture: DDD, Clean Architecture, Repository Pattern, BLoC, Riverpod, Provider 🎨 Animations: Lottie, Custom Painters, complex UI 🛒 E-Commerce: WooCommerce, custom cart systems 📍 Location: Background services, geofencing, live tracking, on-map navigation Don't just take my word for it 💬 🇹🇷 Berk (Voltran, Turkey): "This kind of work ethic is not easy to find" 🇸🇬 John Alam, CEO Nautilus SIP (Singapore): "Shahzad is quite hard-working, he spends good time trying to find the solution and ensures he has tried all possible ways before giving up" 🇬🇧 Chris Hamilton, CEO The Courier App (UK): "If I could relocate Shaz to the UK, I wouldn't let him out of our reach. That probably says enough on its own." Got an idea? A project stuck halfway? Or just need someone who actually cares about your product? Hit that invite button or send me a message. Let's talk 💬 Best regards

🚀 Dart, 📱 Flutter, 🌐 Node.js, ☁️ Firebase, 🔧 AWS, 🔑 GCP, 🎨 Photoshop, 💡 UI/UX Design My name is Kishan, and I am a seasoned Flutter Developer with over 6 years of experience in mobile app development. I have successfully completed 25+ projects, delivering high-quality and scalable applications that meet client needs. I am dedicated to producing outstanding results. My clients appreciate my commitment to quality and timely delivery. I pride myself on being reliable and fair, fostering clear and friendly communication throughout the project lifecycle. 💻 Dart: Skilled in programming with Dart for seamless mobile application development. 📱 Flutter: Expert in using Flutter to build cross-platform apps with beautiful interfaces. 🌐 Node.js: Proficient in Node.js for building server-side connections for mobile apps. ☁️ Firebase: Experienced in integrating Firebase for real-time database and authentication services. 🔧 AWS: Competent in leveraging AWS services for app deployment and infrastructure. 🔑 GCP: Knowledgeable in utilizing Google Cloud Platform for scalable app solutions. 🎨 Photoshop: Able to design app interfaces and graphics using Photoshop. 💡 UI/UX Design: Focused on creating user-centric design experiences. Let’s transform your idea into a functional and beautiful mobile application! Contact me today, and let’s start building your dream app!