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Top Rated Senior Flutter Mobile App Developer | Firebase | Node.js | AI Integration | AWS I help startups and businesses turn ideas into high-quality Flutter applications that are fast, scalable, and ready for production. Whether you need an MVP, a complete mobile app, or long-term development support, I focus on building software that's clean, maintainable, and delivers real business value. Over the past 5+ years, I've worked on mobile applications across healthcare, e-commerce, education, logistics, recycling, social platforms, booking systems, and business management tools. I enjoy solving complex problems and building products that users love. What I can help you with ✅ Flutter App Development (Android & iOS) ✅ Firebase (Authentication, Firestore, Storage, Cloud Messaging) ✅ REST API & GraphQL Integration ✅ Node.js & Express.js Backend Development ✅ AI Features with OpenAI APIs ✅ Payment Integration (Stripe, Google Play Billing, Apple In-App Purchases) ✅ Google Maps & Location Services ✅ Push Notifications ✅ App Performance Optimization ✅ App Store & Google Play Store Publishing ✅ Bug Fixing & Feature Development ✅ Long-term Product Maintenance Why clients enjoy working with me ✔ Clean, scalable architecture following best practices ✔ Responsive communication and regular progress updates ✔ Focus on performance, maintainability, and user experience ✔ Reliable delivery and attention to detail ✔ Ability to understand both technical and business requirements Tech Stack • Flutter & Dart • Firebase • Node.js & Express.js • MongoDB & MySQL • REST APIs & GraphQL • Provider, Bloc • Git & GitHub • Google Maps API • Push Notifications • OpenAI API • AWS • PostgreSQL • GitLab I've built applications including: • Smart Shopping Assistant with Flutter, Firebase, Node.js, and MySQL • QR-based Recycling Management Platform • Food Ordering & Canteen Management System • Educational Applications • Business Management Tools • Social Media Features & Real-time Applications • Social media applications • multi-tenant Valet Trash SaaS I believe great software is more than just working code. It should be reliable, scalable, intuitive, and built with future growth in mind. If you're looking for a Flutter developer who communicates well, takes ownership of the project, and genuinely cares about building a successful product, I'd love to discuss your idea and see how I can help.

Half my inbox is founders whose Flutter app was built fast and wrong. Agency handoffs with no docs, AI-generated codebases that worked in the demo, MVPs that fall over past the first thousand users. I fix those, and then I scale them. Some of my work: ✔ A Windows POS app I took over mid-crisis and revived, now running in ~200 stores across London. ✔ A social app I led through multiple pivots to 3,000+ active users. ✔ Sri Lanka's official COVID-19 tracking app for the Ministry of Health, 25,000+ users. ✔ And most recently an AI-first warehouse management system for a client in Athens, where I built photo-based inventory categorization with ML. I've been building with Flutter since its alpha in 2018. On Upwork that's added up to $300k+ earned and 9,000+ hours logged, almost all of it on long-term contracts with founders in the UK and EU. I help founders and teams ship Flutter apps that actually make it to production, and keep working once they're there. If you've got an idea, a half-built prototype, or a team that's stuck, there's a good chance I can help. 🚀 How I Can Help You need to ship, fast. I've taken 7+ apps from zero to launch. I'll tell you what to build first, what to leave for later, and how to avoid the technical debt that bites you six months in. You want one app, everywhere. Flutter means one codebase across mobile, web, and desktop. I've been building this way for 6+ years, so you get speed without the usual cross-platform compromises. You want AI that does real work. I build agentic systems with MCP, RAG, LangGraph, and tool-calling, the kind that plug into your stack and automate work that used to take hours. Not chatbot demos. Things that earn their keep. You want a partner, not a contractor. I'll flag problems before they ship and push back when something doesn't serve your users. Your product's success is what I'm measuring. You want someone you can trust with the keys. 9,000+ hours on Upwork. 100% Job Success Score. Top Rated Plus. I've led teams under real pressure, including Sri Lanka's national COVID-19 tracing app for the Ministry of Health. What Clients Say "He's more than a developer. He's always thinking about use cases and planning for the project's success." "I cannot emphasise enough what a game-changing impact Avinath has made for our startup." My Stack Flutter Engineering | Flutter & Dart (Mobile, Web, Desktop) · Firebase · Native Android · BLE & Hardware Integrations · UX-focused architecture Agentic AI & Automation | MCP servers · PromptLayer · GenKit · Tool-calling agents · Claude & OpenAI APIs · AI-assisted coding workflows Let's Talk. Tell me what you're working on, whether it's Flutter, AI, or both. I'll give you an honest take on how we get it done, and whether I'm the right person to help.

Flutter Mobile App Developer building production-ready Android & iOS applications used by 1,000+ active users. I help startups and businesses turn ideas into scalable mobile applications — from MVP development to App Store & Play Store launch. Currently working as a Mobile & Web Developer at McLarens Group of Companies, developing enterprise applications used daily by real users in production environments. ━━━━━━━━━━━━━━━━━━━━━━━ 📱 MOBILE APP DEVELOPMENT ━━━━━━━━━━━━━━━━━━━━━━━ • Flutter (Android & iOS) • Modern & Responsive UI/UX • Firebase Integration • Push Notifications • Offline Functionality • Real-Time Features • Performance Optimization ━━━━━━━━━━━━━━━━━━━━━━━ 🔥 FIREBASE & BACKEND ━━━━━━━━━━━━━━━━━━━━━━━ • Firebase Authentication • Firestore & Realtime Database • Cloud Functions • Storage & Analytics • REST API Integration • Node.js Backend Development ━━━━━━━━━━━━━━━━━━━━━━━ 💳 PAYMENTS & SUBSCRIPTIONS ━━━━━━━━━━━━━━━━━━━━━━━ • Stripe Integration • In-App Purchases • Subscription Management • Payment Gateway Integration • Secure Payment Flows ━━━━━━━━━━━━━━━━━━━━━━━ 🤖 AI & AUTOMATION ━━━━━━━━━━━━━━━━━━━━━━━ • OpenAI Integration • AI Chatbots & Assistants • AI-Powered Features • Smart Workflows & Automation ━━━━━━━━━━━━━━━━━━━━━━━ 🚀 DEPLOYMENT & PUBLISHING ━━━━━━━━━━━━━━━━━━━━━━━ • Google Play Store Deployment • Apple App Store Deployment • TestFlight Distribution • Play Console Management • Store Compliance & Release Support ━━━━━━━━━━━━━━━━━━━━━━━ WHY CLIENTS WORK WITH ME ━━━━━━━━━━━━━━━━━━━━━━━ ✅ 100% Job Success Score ✅ Apps used by 1,000+ active users ✅ Real Enterprise Development Experience ✅ Clean, Scalable & Maintainable Code ✅ Fast Communication & Reliable Delivery ✅ Long-Term Collaboration Mindset ━━━━━━━━━━━━━━━━━━━━━━━ TECH STACK ━━━━━━━━━━━━━━━━━━━━━━━ Flutter • Dart • Firebase Node.js • REST APIs MongoDB • PostgreSQL • MySQL OpenAI • Stripe AWS • Git • Docker ━━━━━━━━━━━━━━━━━━━━━━━ If you need a Flutter developer to build, improve, deploy, or scale your mobile application, I'd be happy to help. Let's build something reliable, scalable, and production-ready.

🏆 Top Rated Plus Freelancer on Upwork 🎯 5+ Years Experience in Flutter 📈 30+ Mobile Apps Built and Published Looking for a seasoned Flutter developer to transform your ideas into high-performance, visually stunning mobile applications? With over five years of experience in Flutter and native app development, I help clients worldwide achieve their goals with apps that are both functional and engaging. My Expertise 📱Cross-Platform Development: Flutter, Dart 📱State Management: BloC, Provider, Riverpod, GetX 📱Backend Integration: Firebase, REST APIs, SQL 📱Native App Development: Android (Java, Kotlin), iOS (SwiftUI) 📱Social Media Integrations: Facebook, Google, Twitter 📱Payment Gateways: Stripe, PayPal, Skrill, Flutterwave, PayStack 📱Advanced Features: Messaging SDKs, Google Maps, MapBox, Live Streaming 📱Ad Integrations: Various advertisement SDKs 📱UI/UX Design: Crafting beautiful user interfaces with smooth animations 📱Design Patterns and Architectures: MVC, MVP, MVVM, Clean Architecture 📱UI Frameworks: Material Design, Cupertino 📱Backend Technologies: Firebase Suite, MySQL, MongoDB, Node.js, Laravel 📱Version Control: Git, GitHub, Bitbucket 📱CI/CD: Codemagic, GitHub Actions, Fastlane 📱Testing: Test-Driven Development, JUnit, Mockito, Espresso 📱APIs and SDKs: REST APIs, Stripe, Google AdMob, Agora, Google Analytics 📱App Distribution: Google Play Console, Apple App Store With a deep understanding of the complete development lifecycle and a proven track record, I ensure every app I build not only looks great but also provides a seamless and enjoyable user experience. Why Choose Me? 🚀Client Satisfaction: Long-term contracts with highly satisfied clients 🚀Versatility: Experienced in working with startups, SMEs, and large organizations 🚀Communication: Strong focus on clear and consistent communication 🚀Leadership: Excellent at leading and mentoring development teams What I Offer 👉Full-cycle app development: From idea to deployment 👉Cross-platform apps: iOS, Android, Web, Windows 👉Backend integrations: Secure and scalable solutions 👉Continuous support: Ongoing maintenance and updates 👉Bug fixing and optimization: Ensuring high performance and reliability 👉App distribution: Publishing apps on Google Play and Apple App Store Let’s work together to bring your vision to life. Contact me to kickstart your project and create a digital experience that exceeds expectations!

📱 𝗖𝗿𝗮𝗳𝘁𝗶𝗻𝗴 𝗗𝗶𝗴𝗶𝘁𝗮𝗹 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝘀 𝗧𝗵𝗮𝘁 𝗦𝗰𝗮𝗹𝗲 — 𝗠𝗼𝗯𝗶𝗹𝗲, 𝗪𝗲𝗯, 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 & 𝗔𝗜 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 🛠️ Core Skills: 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 • 𝗦𝘄𝗶𝗳𝘁 • 𝗝𝗮𝘃𝗮 • 𝗞𝗼𝘁𝗹𝗶𝗻 • 𝗥𝗲𝗮𝗰𝘁 • 𝗡𝗲𝘅𝘁.𝗷𝘀 • 𝗡𝘂𝘅𝘁.𝗷𝘀 • 𝗡𝗼𝗱𝗲.𝗷𝘀 • 𝗝𝗮𝘃𝗮 𝗦𝗽𝗿𝗶𝗻𝗴 𝗕𝗼𝗼𝘁 • 𝗣𝘆𝘁𝗵𝗼𝗻 • 𝗗𝗲𝘃𝗢𝗽𝘀 • 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻𝘀 🌟 Successfully delivered and deployed 10+ applications across the Apple App Store, Google Play Store, and web platforms. 🎓 BSc. Eng. in Computer Engineering — University of Peradeniya With 6+ years of software engineering experience, I specialize in building high-quality digital products across mobile, web, backend, and cloud environments. My strength is not only writing code, but understanding business needs and turning ideas into scalable, production-ready systems. I have worked across multiple industries including banking, fintech, business platforms, AI products, admin systems, booking systems, and enterprise applications — handling both startup MVPs and complex production systems. 🚀 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗕𝘂𝗶𝗹𝗱: • Mobile Apps (Flutter, native iOS & Android) • Full-stack Web Platforms • Backend APIs & Admin Panels • Payment Integrations • Cloud Deployments & DevOps Pipelines • AI-powered Products & Automations • System Architecture Improvements • Performance Optimization & Production Bug Fixing 💻 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗜 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵: • Mobile: Flutter, Swift, Kotlin, Java • Frontend: React, Next.js, Nuxt.js • Backend: Node.js, Java Spring Boot, Python • Database: MySQL, PostgreSQL, Firebase, MongoDB • Cloud / DevOps: AWS, DigitalOcean, Docker, CI/CD • AI: OpenAI integrations, automation systems, intelligent workflows 🌟 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲: • Strong ownership of complex projects • Fast understanding of existing codebases • Clean and scalable engineering decisions • Reliable communication and transparency • Ability to lead or work independently I can join projects at any stage — from idea validation to scaling an existing product. 😁 Open to long-term collaborations, technical audits, MVP builds, and product rescue work. Let’s start with a short discussion and see how we can build something valuable together.

Hi, I am a creative and experienced Full Stack Developer and Web & Mobile App Developer with 4 years of industry experience working with companies to deliver high-quality software solutions. I specialize in front-end and back-end development, using technologies such as: Front-end: React, Angular, Vue.js Back-end: .NET, Laravel, Node.js, Django, PHP, Wordpress Databases: MySQL, PostgreSQL Cloud Platforms: Azure, Google Cloud, AWS, Oracle Cloud I also have experience developing IoT devices software, integrating hardware with cloud services and web/mobile applications. Additionally, I have 5 years of experience in Adobe Graphic Design Package and Corel Draw, providing professional graphic design services. I focus on delivering solutions that meet client needs and ensure quality in every project. Thank you for visiting my services—I look forward to collaborating with you soon!