Hire the Best Flutter Developers
in the Netherlands

Hi! I'm Hamid — a Flutter Mobile App Developer with 3 years of hands-on experience building clean, fast and reliable mobile applications. I specialize in: Flutter (Cross-Platform) Firebase (Auth, Firestore, Storage, FCM) REST API Integration State Management (Provider, GetX, Bloc if needed) Clean UI/UX with Responsive Design Bug fixing & performance optimization 💡 Why choose me? I write clean, maintainable code. I deliver on time and communicate clearly. I can build full apps from scratch or join an existing project. I focus on simple, beautiful and user-friendly UI. I can help you build: Service/Booking Apps Small Business Apps Informational & Utility Apps Firebase-connected applications Apps with login, signup, dashboards, and dynamic data If you're looking for a reliable Flutter developer who actually cares about the project — I’m here and ready to start. Let’s build something amazing!

Clients bring me in for greenfield Flutter builds, difficult codebase rescues, and AI features that have to work in production. I own the work across the app, backend, tests, CI/CD, and release. Recent work: a production Supabase RLS audit and hardening pass, a 410-test Playwright suite for a Next.js portal, and a Postgres outbox implementation for reliable async side effects. I use agents for parallel codebase investigation, adversarial review of my own diffs, and generating tests around risky paths and edge cases. I review and own everything that ships. Client code and data stay within the boundaries agreed for the project. I'm a senior Flutter developer (10+ years mobile, 7+ in Flutter) based in the Netherlands, working with startups and scale-ups across Europe. I'm not just the Flutter layer. I regularly own Next.js portals, Supabase and Postgres including RLS audits and migrations, Hono/Bun backends, CI/CD and TestFlight releases, so you don't need a second freelancer for the backend. My AI work is in production rather than demos: LLM APIs, semantic search with pgvector, and RAG pipelines shipped as features paying users rely on. What I've shipped: fintech and crypto apps, large-scale e-commerce, enterprise onboarding, social apps, inspection/field-service SaaS. Architecture through App Store submission, every time. Stack: Flutter & Dart · Riverpod & BLoC · Firebase & Supabase · PostgreSQL + pgvector · TypeScript / Next.js / Hono / Bun · OpenAI & Anthropic APIs · Fastlane, CI/CD, Playwright Where I fit best: 📱 Greenfield builds - architecture to App Store 🤖 AI features - summaries, semantic search, chat, recommendations 🚑 Rescues - performance problems, state-management messes, codebases left behind by a previous dev 🧪 Hardening - testing, refactoring, security audits, code review How I work: clear, proactive communication, you'll never wonder where things stand. Documented code with tests, because whoever maintains it after me deserves that. And I don't need hand-holding: point me at a problem and I'll own it end to end. If your project needs someone who can think about the whole product, not just the Flutter layer, send me a message and tell me what you're building.

Need a Flutter or React Native app that is stable, scalable, and ready for real users, not just another developer who delivers screens? I build AI-powered iOS & Android apps with 10+ years of experience, an IBM background, and hands-on experience shipping apps with 1M+ downloads. Is your mobile app crashing, lagging, or falling behind on user experience? Or maybe you're trying to launch a new mobile application fast without compromising on quality, or need to add AI, payments, or smart-device features into an app that wasn't built for them. Whether you're building a new MVP, fixing an existing app, or taking over a codebase from another developer, I focus on the outcome: a production-ready mobile app without unnecessary rewrites or wasted development budget. 𝐖𝐇𝐀𝐓 𝐈 𝐂𝐀𝐍 𝐁𝐔𝐈𝐋𝐃 & 𝐅𝐈𝐗 ✓ Flutter & React Native apps for iOS and Android ✓ New MVPs from Figma/prototype to App Store & Google Play ✓ Existing app modernization, bug fixing & performance optimization ✓ AI-powered mobile apps with OpenAI, ChatGPT, Claude & Gemini ✓ AI chatbots, assistants, AI agents & RAG knowledge bases ✓ Tuya / IoT / BLE device pairing, monitoring & control ✓ Firebase, Supabase, REST APIs & custom backend integrations ✓ Payments, subscriptions & in-app purchases ✓ Real-time chat, notifications, WebSockets & WebRTC ✓ Google Maps, GPS & location-based features ✓ App Store & Google Play deployment 𝐀𝐈 & 𝐈𝐨𝐓 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 I build mobile apps that go beyond standard UI and API integration: ✓ OpenAI / ChatGPT / Claude / Gemini integrations ✓ AI assistants, chatbots & intelligent workflows ✓ RAG & AI knowledge bases ✓ AI agents & recommendations ✓ Voice AI / speech-to-text / text-to-speech ✓ Tuya SDK / Tuya OEM / SmartLife ✓ IoT device control & monitoring ✓ BLE device pairing & communication 𝐌𝐎𝐁𝐈𝐋𝐄 𝐀𝐏𝐏 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 𝐏𝐑𝐎𝐉𝐄𝐂𝐓𝐒 ✓ Oladoc & Aura, production mobile applications with 1M+ downloads, built to handle real user scale ✓ A healthcare app that needed AI-powered calorie tracking, delivered in React Native + OpenAI ✓ A healthcare booking platform juggling doctor schedules, patient workflows, and backend integrations, simplified and shipped ✓ Smart water and air-quality monitoring devices that needed a reliable mobile companion app, built with Tuya SDK, BLE, and real-time data ✓ A sports community app that needed smarter player matching, solved with AI-powered analysis ✓ A pet matching platform that needed better recommendations, solved with AI-agent-based logic 𝐘𝐎𝐔'𝐑𝐄 𝐀 𝐆𝐎𝐎𝐃 𝐅𝐈𝐓 𝐈𝐅... You need a Flutter or React Native developer for a new MVP. Your existing mobile app is slow, crashing, outdated, or difficult to maintain. You want to add AI features to an existing mobile app. You need a Tuya/IoT/BLE mobile application. Your previous developer left and you need someone to take ownership. You need someone who can handle mobile + backend/API integration instead of managing multiple developers. 𝐓𝐄𝐂𝐇 𝐒𝐓𝐀𝐂𝐊 Mobile: Flutter, Dart, React Native, Expo, Swift, Kotlin AI: OpenAI, ChatGPT, Claude, Gemini, LangChain, RAG, AI Agents Backend: Node.js, FastAPI, Firebase, Supabase Database: PostgreSQL, MongoDB Real-time: WebSockets, WebRTC IoT: Tuya SDK, Tuya OEM, BLE APIs: REST APIs, third-party SDK integrations 𝐄𝐗𝐈𝐒𝐓𝐈𝐍𝐆 𝐀𝐏𝐏? 𝐈'𝐋𝐋 𝐃𝐈𝐀𝐆𝐍𝐎𝐒𝐄 𝐁𝐄𝐅𝐎𝐑𝐄 𝐑𝐄𝐁𝐔𝐈𝐋𝐃𝐈𝐍𝐆 If your existing app has problems, I won't automatically recommend a rebuild. I'll first look at the architecture, performance, dependencies, technical debt and backend to identify the most practical fix, even if that means less work and lower cost for you. Regards, Ahsan Warsi 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬: mobile app development | mobile app developer | flutter mobile app | flutter mobile app developer | app developer | app development | Flutter Developer | Flutter App Developer | Flutter Mobile App Development | iOS Android App Developer | Cross Platform App Developer | Mobile App Developer | Flutter MVP Developer | Flutter Firebase Developer | Flutter API Integration | Flutter UI/UX Development | mobile app builder | mobile app creation | senior mobile app developer | android app development | ios app development | mobile app development consultation | react native | mobile app builder | mobile app development | app developer | dating app developer | ecommerce app | mobile app development agency | create mobile app | mobile app creator | create app | create an app | create website | ai mobile app creation | social media app development | mvp app developer | mvp app creation | mvp apps | mvp app development | flutter mobile app development | flutter flow developer

🌍 Global Projects & Customers 🌍 More than 16 Tier-1 Global customer 🌍 💡 Specializing in FinTech, E-Commerce, AI-Powered Recruitment, Events management, and E-Learning Platforms 💡 👨‍💻 Leading Teams of Full-Stack Developers 👨‍💻 ✅ Flutter and FlutterFlow ✅ React ✅ AI/NLP/Computer Vision With over 18 years of experience, I lead teams of developers in building cutting-edge digital platforms and applications. My career spans working with leading vendors like Alcatel, NOKIA, and Huawei, bringing deep technical expertise and leadership to global projects. I also foster strategic partnerships with innovative technology companies such as Ultrahire.ai, Innovito.com, and Payspin.io, gaining access to key platforms like Intervue.io, NVISO.ai, NVIDIA Inception Program, and ZoomMeeting. My passion is in building scalable solutions, with a focus on FinTech, e-Commerce, and E-Learning, while managing skilled teams proficient in Flutter, FlutterFlow, Android, Kotlin, Dart, React, and Angular. I oversee projects from concept to deployment, ensuring high-quality, user-centric applications that meet business goals. 💼 Key Highlights: ✅ 18+ years of experience in technology and digital platform development ✅ Proven track record with global customers and projects ✅ Top-tier experience with Alcatel, NOKIA, and Huawei ✅ Leading teams of full-stack developers skilled in Flutter, FlutterFlow, Kotlin, Dart, React, and Angular ✅ Extensive expertise in FinTech, e-Commerce, E-Learning, and AI-powered mobile apps 🔧 Technical Expertise: ✅ Mobile App Development (Android, iOS, Flutter, FlutterFlow) ✅ Full-Stack Development (React, Angular, Node.js) ✅ Backend & API Development ✅ Third-Party API Integration (Payment systems, Firebase, Google Maps) ✅ Cloud & DevOps (Azure, Firebase, RESTful APIs) ✅ State Management and App Architecture ✅ Performance Tuning, Testing, and Debugging 🎯 Recent Features Developed: ✅ Keyword Matching Technology: AI/NLP | Platform: Ultrahire.ai Description: Matches keywords entered by recruiters with those used by candidates in video/text responses. ✅ CV Skills Matcher Technology: AI/NLP | Platform: Ultrahire.ai Description: Highlights key skills in candidate CVs based on reference keywords without requiring full CV screening. ✅ Candidate Online Exams Assessment Technology: Auto-assessment with proctoring | Platform: Ultrahire.ai Description: Allows recruiters to invite candidates to take proctored exams, assessing their technical and non-technical skills with anti-plagiarism techniques. ✅ Pair-Programming/Collaboration Assessment Technology: Live online testing/interview | Platform: Ultrahire.ai Description: Enables live interviews with shared coding environments and whiteboards for technical assessments and pair-programming evaluations. ✅ AI Psychometric Analysis Assessment Technology: AI/NLP/Computer Vision | Platform: Ultrahire.ai Description: Uses AI to assess candidate video answers, analyzing speech, facial expressions, and body language to score key human traits. ✅ Applicant AI Psychometric Self-Assessment Technology: AI/NLP/Computer Vision | Platform: Ultrahire.ai Description: Provides applicants with performance feedback on video interviews, using AI to analyze gestures, speech, and expressions, with personalized tips for improvement. 🎯 Additional Specializations: ✅ Mobile App Development for AI-Powered Mobile Applications ✅ Mobile App Development for On-Demand Mobile Apps ✅ Mobile App Development for Ride Instructor Booking Apps ✅ Recruitment Platforms ✅ Automotive Services Platforms ✅ Fixing Web & Mobile App Bugs ✅ Implementing New Platform Features ✅ Platform Transformation to Cloud and AI-Native Architectures ✅ Platform Management Operations & User Behavior Analysis ✅ Integration with 3rd-Party Apps, APIs, and Frameworks ✅ Building Cross-Platform Mobile Apps ✅ Strengthening Platform Security As a hands-on leader, I ensure my teams deliver exceptional results in both functionality and security, continuously optimizing platform performance. Whether building complex platforms or integrating advanced AI solutions, I am dedicated to driving innovation and success in every project.