Hire the Best Firebase Developers
in Sri Lanka

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.

🚀 𝗚𝗹𝗼𝗯𝗮𝗹𝗹𝘆 𝗧𝗿𝘂𝘀𝘁𝗲𝗱 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | Top Rated Plus | 8+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 My primary tech stack includes 𝗡𝗼𝗱𝗲.𝗷𝘀, 𝗥𝗲𝗮𝗰𝘁.𝗷𝘀 (𝗡𝗲𝘅𝘁.𝗷𝘀), 𝗮𝗻𝗱 𝗧𝘆𝗽𝗲𝗦𝗰𝗿𝗶𝗽𝘁, and I architect robust systems using 𝗔𝗪𝗦 𝗦𝗲𝗿𝘃𝗲𝗿𝗹𝗲𝘀𝘀 (𝗟𝗮𝗺𝗯𝗱𝗮, 𝗗𝘆𝗻𝗮𝗺𝗼𝗗𝗕, 𝗔𝗣𝗜 𝗚𝗮𝘁𝗲𝘄𝗮𝘆), 𝗚𝗖𝗣, 𝗮𝗻𝗱 𝗙𝗶𝗿𝗲𝗯𝗮𝘀𝗲 𝗖𝗹𝗼𝘂𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁. I'm highly focused on performance, reliability, clean code, and scalable architecture. Hi, I'm Naseef. As a 𝗙𝘂𝗹𝗹‑𝗦𝘁𝗮𝗰𝗸 𝗡𝗼𝗱𝗲.𝗷𝘀 & 𝗥𝗲𝗮𝗰𝘁.𝗷𝘀 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿, I specialize in developing high-performance, scalable, and cloud-native applications that solve real-world business problems. With 7+ years of hands-on experience, I build everything from 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝘄𝗲𝗯 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 𝘁𝗼 𝗖𝗵𝗿𝗼𝗺𝗲 𝗘𝘅𝘁𝗲𝗻𝘀𝗶𝗼𝗻𝘀 𝗮𝗻𝗱 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀, delivering production-ready solutions using the latest technologies. ✅ 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: - React.js (Hooks, Context API, Redux), Next.js, Angular, Vue.js - HTML5, CSS3, JavaScript (ES6/ES7), TypeScript 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: - Node.js, Express.js, Nest.js, Fastify - Google Apps Script 𝗖𝗹𝗼𝘂𝗱 & 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲: - AWS: Lambda, DynamoDB, API Gateway, S3, EC2, RDS, Cognito, Beanstalk, CloudWatch, CDK scripting - GCP & Firebase: Firestore, Cloud Functions, Cloud Storage, Firebase Auth Cloudflare: Workers, Pages, R2 - Docker, Kubernetes, GitHub Actions, Azure DevOps, Terraform, Serverless Framework 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲: - PostgreSQL, MySQL, MongoDB, DynamoDB, Redis, Supabase-io 𝗔𝗜, 𝗟𝗟𝗠𝘀 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: - OpenAI/ChatGPT Integrations, LangChain, AWS Bedrock, Google Vertex AI - RAG systems, AI chatbots, LLM-backed automation - Scraping and automation: Puppeteer, Scrapy, Playwright, Stagehand 𝗖𝗵𝗿𝗼𝗺𝗲 𝗘𝘅𝘁𝗲𝗻𝘀𝗶𝗼𝗻𝘀 & 𝗜𝗼𝗧: - Chrome Extension Development - Raspberry Pi / Arduino-based automation & microservices 𝗧𝗼𝗼𝗹𝘀: Git, GitHub, Linux, Visual Studio Code, Postman, Figma, Jira, Trello 💡 𝗪𝗵𝘆 𝗛𝗶𝗿𝗲 𝗠𝗲? ✔ 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗩𝗲𝗿𝘀𝗮𝘁𝗶𝗹𝗶𝘁𝘆 I handle complete app development, frontend, backend, cloud, database, DevOps, and integration. ✔ 𝗖𝗹𝗼𝘂𝗱-𝗡𝗮𝘁𝗶𝘃𝗲 & 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 Expert in deploying AWS Serverless solutions and cloud applications on GCP & Firebase, using infrastructure-as-code and scalable architecture. ✔ 𝗢𝗽𝗲𝗻𝗔𝗜/𝗖𝗵𝗮𝘁𝗚𝗣𝗧 & 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 Proven ability to integrate LLM features, AI-driven workflows, and chatbot solutions using OpenAI, LangChain, and other GenAI tools. ✔ 𝗖𝗵𝗿𝗼𝗺𝗲 𝗘𝘅𝘁𝗲𝗻𝘀𝗶𝗼𝗻 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 Developed multiple Chrome extensions tailored to business and user needs with efficient APIs and cloud backends. ✔ 𝗦𝗮𝗮𝗦, 𝗘-𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 Experience building multi-tenant SaaS apps, secure payment integrations, and automated dashboards with real-time sync. ✔ 𝗧𝗲𝗮𝗺 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽 & 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 Capable of working independently or leading teams. Strong communication skills and a collaborative mindset using agile methodologies. ✔ 𝗖𝗹𝗲𝗮𝗻 𝗖𝗼𝗱𝗲 & 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 I write clean, maintainable code and optimize systems for speed, stability, and cost-efficiency. 📈 𝗣𝗿𝗼𝘃𝗲𝗻 𝗥𝗲𝘀𝘂𝗹𝘁 ✅ Enterprise Dashboard – Built with React.js & AWS Lambda, boosting efficiency by 60% ✅ Chrome Extensions – Deployed productivity tools with 20K+ active users ✅ AI Document Parser – Integrated ChatGPT/LangChain, reducing manual work by 70% ✅ Serverless Migration – Shifted to AWS Lambda/DynamoDB, cutting costs by 40% ✅ Real-Time Collaboration Tool – Built with Firebase & React, improving team output by 35% ✅ SaaS Platform – Scaled on GCP & Supabase, supporting 50K+ users ✅ Next.js E-Commerce – Enhanced SEO, reducing bounce rate by 45% ✅ Automation Bot – Puppeteer + Cloudflare stack, saving 100+ hours/month 📩 Let’s build your next product with a rock-solid tech foundation Whether you're a founder, product owner, or CTO, I’ll help you deliver modern, scalable solutions with the right tools, right strategy, and real outcomes. Let’s connect! Full Stack Developer, Node.js Developer, React.js Developer, JavaScript Developer, TypeScript Developer, AWS Lambda Developer, Serverless Architecture, GCP Developer, Firebase Developer, Chrome Extension Developer, OpenAI Developer, ChatGPT Integration, AI Integration Developer, API Developer, SaaS Developer, Web Application Developer, Backend Developer, Frontend Developer, Cloud Application Developer, Next.js Developer, DevOps Engineer, Scalable Architecture #FullStackDeveloper #Nodejs #Reactjs #Nextjs #JavaScript #TypeScript #Serverless #AWSLambda #GCP #Firebase #OpenAI #ChatGPT #WebDevelopment #CloudNative #ChromeExtension #SaaS #APIIntegration #AIIntegration #SoftwareEngineer

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.

I’m a WordPress-focused web developer with a Computer Engineering background and proven experience delivering professional, business-ready websites. My main focus is WordPress development — building clean, fast, and responsive websites that help businesses establish a strong online presence. From custom theme customization to performance and security improvements, I ensure every WordPress site is reliable and easy to manage. What I can help you with: ✅ Custom WordPress website development ✅ Business websites, landing pages & portfolios ✅ Theme customization & plugin integration ✅ Speed optimization & security hardening ✅ Mobile-responsive & user-friendly design ✅ Generate AI contents with premium subscriptions. Alongside WordPress, I also work with Web & Mobile UI design, AWS hosting/deployment, and Flutter (Dart) for mobile applications allowing me to handle projects end-to-end. I’m easy to communicate with, detail-oriented, and focused on delivering exactly what the client needs on time. Whether you need a brand-new WordPress site or improvements to an existing one, I can help you get it done properly. 📌 Let’s build a Website that actually works for your business.

I'm a Full-Stack Web & Mobile App Developer with over 4 years of expertise crafting Cutting-Edge Solutions for businesses of all sizes 💼. My expertise spans a range of powerful tools: 🐍 Python: AI Chatbots, Data Scraping/Extraction/Processing, and Automation 📱 Flutter: Crafting sleek iOS & Android apps. 🖥️ Next.js: Powering fast and dynamic websites. 🔥 Firebase: Building lightning-fast, efficient, and reactive backends. 🚀 Node.js: Customized backends tailored to your needs. I'm also a fluent Python Programmer, utilizing my skills for API development, AI Chatbots, Data Scraping/Extraction/Processing, and Automation projects. 🐍 When it comes to design, I've got you covered with unique, minimal, and elegant UIs created in Figma. 🎨 I live by the principles of Clean Code, Layer-Based Architecture, and always stay on top of the latest tools. Ready to turn your awesome ideas into reality? Let's make it happen! 🌟