If you need high-quality, fast, clean development for your web or mobile app — let’s talk. I deliver on time, communicate clearly, and keep clients long-term. I’m Daniel de Oliveira, a Senior Full-Stack & Mobile Engineer specialized in Flutter / FlutterFlow development for iOS and Android — building high-performance applications with exceptional UX and robust backend integration. With 6+ years of experience across Angular, Node/NestJS, and Flutter, I’ve led high-tech teams and delivered production-ready solutions for IoT, AI, and FinTech products. I bring both hands-on coding and technical leadership to every project. ⸻ 🚀 What I Do ✅ Mobile App Development (Flutter / FlutterFlow) • 10+ Flutter apps built from scratch to upload • Clean architecture (Bloc / GetX) • Offline-first support, messaging, chat, maps, and geolocation • Firebase, REST, GraphQL, or custom backends (Node.js, Spring Boot, PHP) ✅ Frontend Engineering • Angular (16/17), Tailwind, RxJS, Chart.js, ApexCharts • UX implementation from Figma to production-ready UI • Data-rich dashboards and analytics components ✅ Backend & Cloud • Node.js / NestJS, REST & GraphQL APIs • Firebase, PostgreSQL, MongoDB • Authentication (JWT, OAuth), caching, and CI/CD pipelines ⸻ 💼 Highlight Projects • Electra Vehicles (EV Analytics Platform) – Built reusable Angular chart components and caching adapters in Node.js for battery analytics. • Picnic App – Architected a Flutter social networking MVP with offline-first UX and GraphQL backend. • FlutterFlow Custom Action (XML → JSON) – Created a robust integration for parsing external XML feeds into app data. ⸻ 🎯 Why Hire Me • I deliver production-ready MVPs fast, from concept to app store. • I’m a hands-on problem solver with solid backend and UX understanding. • I have proven success working with remote, cross-functional teams. Let’s discuss your project — I’ll bring your product to life from idea to launch 🚀

Am working in Flutter for the last two years and have gained immersive experience in it. I also taught flutter to 40 students during 45 weeks of summer training. My projects include Live projects: Food Explorer OTG help Manik Kitchen Cool Chat Doctor Book Appointment Currently working projects Fitness App Dukaan Ecommerce Projects I build for learning purpose IRO Music Love Tok (tik tok clone) I want to develop lots and lots of apps.

I'm a Front-end Developer with over 10 years of experience in creating engaging and user-friendly interfaces. I began my journey as a Web Developer, but over the last 3 years, I've honed my skills in Flutter development and now specialize in crafting stunning mobile, web, and desktop applications using this versatile framework. My passion for User Experience (UX) drives me to design and develop interfaces that not only look aesthetically pleasing, but also provide a seamless experience for users across all platforms. My strong background in web development has enabled me to understand the nuances of user-centric design and implement them effectively in my Flutter projects. I firmly believe in the value of open communication and strive to create a supportive atmosphere where everyone's ideas and expertise are valued and utilized. Here's what you can expect when you work with me: - Expertise in creating high-quality, responsive, and interactive Flutter applications for mobile, web, and desktop platforms. - A keen eye for detail and a strong focus on user experience, ensuring that your app is not just visually appealing but also user-friendly and intuitive. - A humble and collaborative approach, emphasizing teamwork and open communication to achieve project milestones and deadlines. - A commitment to maintaining a clear and transparent workflow, keeping you informed and engaged throughout the development process. - Adherence to best practices and industry standards, ensuring that your application is built on a solid foundation. If you're looking for a reliable and experienced Flutter developer who is passionate about delivering top-notch user experiences, I would be delighted to collaborate with you on your next project. Let's connect and bring your vision to life!

🌟 TURN YOUR VISION INTO A HIGH-PERFORMANCE APP 🌟 I am a Senior Flutter & FlutterFlow Developer with over 4 years of experience delivering robust, scalable applications. My background isn't just in coding—it's in engineering solutions. I am an active contributor to the Flutter ecosystem (Pub.dev) and a technical content creator. 📍 HOW I CAN HELP YOU ✅ Full-Stack Development: I handle everything from the UI/UX implementation (Flutter) to the heavy lifting on the backend (Node.js, Firebase). ✅ AI & Automation: Upgrade your app with OpenAI integrations, push notifications, and smart automations. ✅ Payments & SaaS: Expert implementation of subscription models using Stripe and RevenueCat. ✅ Performance Optimization: I fix slow apps and optimize databases for speed. 🤝 WHY CHOOSE ME? I bridge the gap between complex code and business goals. My experience running a tech YouTube channel means I communicate clearly, update frequently, and ensure you never feel lost in the process. 💼 MY PROMISE 1️⃣ Pixel-perfect design implementation 2️⃣ Clean, maintainable code (Open-source standard) 3️⃣ Full support through the App Store publishing process Let's turn your idea into a live product. Click the "Invite" button to get started! 🚀

Senior Flutter Developer & UI/UX Designer with 7+ years of experience building mobile apps for Android, iOS, and web. I’ve worked on various projects ranging from F&B, booking systems, POS, delivery services, lifestyle apps, onboarding platforms, and internal business tools. My background in both development and design helps me create apps that are not only functional, but also clean, intuitive, and enjoyable to use. Here are some things I can help with: 🚀 Flutter App Development 🎨 UI/UX Design 📱 Android & iOS Apps 🌐 Web Apps & Admin Dashboards 🔗 REST API & GraphQL Integration 🔥 Firebase & Cloud Firestore ☁️ AWS Cloud Storage 🧩 Clean Architecture & State Management 🛠 App Deployment & Maintenance I’m comfortable working independently, collaborating with teams, or building apps from scratch from idea to production. One thing I genuinely enjoy about this work is solving problems and turning ideas into real products people can actually use. I also pay a lot of attention to UI details and user experience because I believe a good app should feel smooth, clear, and reliable. Outside of coding, I enjoy photography, videography, learning new things, and spending time with my plants 🏡👩‍🌾 If you think we’d be a good fit, I’d love to hear more about your project. Best, Victoria

Flutter apps usually break in the boring places: Firebase rules, API responses, payment states, push notifications, app-store builds, and the logic between screens. I work as a Flutter Developer for Android/iOS apps where the goal is not just a working preview, but a clean, testable app clients can launch. I build and improve mobile apps using Flutter, Dart, FlutterFlow, React Native, BLOC/Riverpod state management, Firebase, Supabase, REST APIs, payments, real-time chat, push notifications, and App Store / Play Store deployment workflows. My best fit is usually one of these situations: • You have a Figma design and need it converted into a real Flutter or FlutterFlow app. • Your FlutterFlow app is partially built, but the Firebase, API, payment, or app logic is stuck. • Your Flutter app needs bug fixing, performance cleanup, UI polish, or redeployment. • You need an MVP for Android/iOS, but you want the structure clean enough to grow after launch. • You want AI features such as ChatGPT/OpenAI API, AI chat, AI assistants, or automation inside a mobile app. What I can handle: • Flutter mobile app development for Android and iOS • FlutterFlow app development for MVPs, SaaS apps, marketplaces, booking apps, and dashboards • Firebase setup: Authentication, Firestore, Storage, Cloud Functions, security rules, and push notifications • Supabase setup: auth, database, APIs, and app integration • REST API and third-party integrations • Stripe, Razorpay, PayPal, in-app purchases, and subscription flows • Real-time chat, booking flows, order tracking, maps, user profiles, admin panels, and notification systems • App Store and Google Play release support Common app types I work on: eCommerce and marketplace apps, restaurant and food delivery apps, booking and service apps, dating and social apps, education apps, health and fitness apps, SaaS MVPs, and AI-powered mobile apps. Clients usually hire me when they need someone who can look beyond the screen design and make sure the app logic, backend, integrations, and launch steps are actually connected properly. If you need a Flutter Developer who can build, fix, or launch your Android/iOS app with Flutter, FlutterFlow, Firebase, APIs, and payments handled cleanly, send me the app details and I will suggest the best next step

Hello! My name is Cody. I'm a mobile developer with particular expertise in building applications with Claude Code, FlutterFlow, Flutter, Firebase, Supabase, Cloud Functions, Edge Functions, and Buildship. I have solo-developed and published full-stack applications to the App Store, Play Store, and web with 5000+ daily active users. I can own every aspect of the development cycle and would love to bring your application to life! TECHNICAL PROFICIENCIES: ● Programming Languages: Dart, TypeScript, JavaScript, Python, SQL, Swift ● Mobile Development: FlutterFlow, Flutter, React Native, Xcode, Android Studio, Expo, CocoaPods ● Web Development: FlutterFlow, React, Redux, Gatsby, Node.js, Webpack, Shopify, Ruby on Rails, Google Analytics ● Automation: , Buildship, Zapier, Make, n8n, Airtable ● Databases: PostgreSQL, Firebase, Supabase, SQLite, MySQL, MongoDB ● UI/UX Design: Figma, Tailwind CSS ● APIs & Tools: OpenAI, Anthropic, Gemini, Gemma, RevenueCat, SendGrid, Posthog, Appsflyer, Google Places, Firebase Cloud Messaging, OneSignal, GraphQL, REST, Heroku, Netlify, Sequelize, Apollo, Git, AWS S3, Docker, Postman ● Testing: FlutterFlow E2E, Cypress, Jest Native, Jest

Hi, I’m Roman Bhimani 👋 I’m a Flutter Developer with 5+ years of experience building modern, scalable, and high-performance mobile applications for Android and iOS. I help startups, founders, and businesses turn ideas into real products - from MVPs to full-scale mobile applications that are fast, user-friendly, and built for long-term growth. I focus on building apps that are not only visually attractive, but also clean, stable, scalable, and easy to maintain. Most clients work with me because they want a developer who understands both the technical side and the business side of app development. What I Can Help You With → Flutter App Development for Android & iOS → Cross-Platform & Hybrid App Development → MVP Development for Startups → Full Stack Mobile App Development → Flutter Web Development → API Integration & Backend Connectivity → Firebase & Supabase Integration → Real-time Chat & Push Notifications → Payment Gateway Integration → Google Maps & GPS Features → AI-Powered Features & ChatGPT Integration → Bug Fixing & App Performance Optimization → Play Store & App Store Deployment → App Maintenance & Long-Term Support Skills & Technologies Mobile App Development → Flutter → Dart → Android Development → iOS Development → Cross-Platform Development → Hybrid App Development → Flutter Web State Management & Architecture → BLoC / Cubit → Riverpod → Provider → GetX → Clean Architecture → MVVM Architecture → SOLID Principles → Scalable App Architecture → Reusable Components Backend & API Integration → REST APIs → GraphQL → API Integration → WebSocket Integration → Real-time Data Sync → JSON Parsing Firebase & Backend Services → Firebase Authentication → Cloud Firestore → Firebase Realtime Database → Firebase Cloud Messaging (Push Notifications) → Firebase Analytics → Firebase Crashlytics → Firebase Storage → Supabase Integration Database & Local Storage → SQLite → Hive Database → SharedPreferences → Secure Storage Payments & Monetization → Stripe Integration → Razorpay Integration → In-App Purchases → Subscription Systems Maps & Location Features → Google Maps Integration → GPS & Geolocation Features → Live Tracking → Route Navigation → Places API Integration Advanced Features → Real-time Chat Systems → AI Chatbot Integration → OpenAI / ChatGPT Integration → BLE / IoT Integration → Camera & Media Features → Deep Linking → Dynamic Links → Multi-language Apps → Dark Mode Support Tools & DevOps → Git / GitHub / GitLab → CI/CD → Codemagic → GitHub Actions → Postman → Jira / Trello → Play Store Deployment → App Store Deployment Industries I Work With → E-commerce & Marketplace Apps → Fintech & Payment Apps → Healthcare & Fitness Apps → Education & E-learning Platforms → Social Media & Chat Applications → SaaS & Business Tools → Logistics & Delivery Apps → Booking & Appointment Apps → Travel & Hospitality Apps → On-demand Service Apps → AI-based Applications My Work Process 1. Understanding Requirements → I understand your app idea, business goals, and target audience. 2. Planning & Architecture → I plan the app structure, features, and scalable architecture. 3. UI & Development → I build clean, responsive, and high-performance applications using Flutter. 4. Testing & Optimization → I test the app carefully and optimize performance for smooth user experience. 5. Deployment → I help publish your app on the Play Store & App Store. 6. Support & Maintenance → I provide ongoing support, updates, and improvements after launch. Why Clients Work With Me → 5+ years of Flutter development experience → Clean and maintainable code → Strong focus on app performance & UX → Fast communication & reliable delivery → Scalable and production-ready solutions → Long-term support and improvements → Business-focused development approach I believe a good mobile app is not just about features - it should be smooth, stable, scalable, and easy to use. If you’re looking for a reliable Flutter Developer who can help turn your idea into a high-quality mobile app, feel free to message me. Let’s discuss your project. ✅Keywords Flutter Developer | Flutter App Developer | Mobile App Developer | Flutter Mobile App Developer | Dart Developer | Cross Platform App Developer | Android App Developer | iOS App Developer | Full Stack Flutter Developer | Mobile App Development | Flutter App Development | MVP App Development | Hybrid App Development | Firebase | Supabase | REST API Integration | GraphQL | API Integration | BLoC | Riverpod | Provider | GetX | Push Notifications | Payment Gateway Integration | Google Maps Integration | Real-time Chat App | AI App Development | ChatGPT Integration | Firebase Firestore | Realtime Database | Scalable Mobile Apps | Bug Fixing | App Maintenance | App Deployment | Play Store Deployment | App Store Deployment | Git | GitHub | CI/CD | E-commerce App Developer | Fintech App Developer | Healthcare App Developer | EdTech App Developer | SaaS App Developer | Marketplace App Developer

Looking for a competitive mobile application or UX/UI design for your business growth? Look no further! With over 4 years of experience in the IT field, I can provide you with optimized solutions that will turn your ideas into reality through discussion and research. I specialize in the following: Android and iOS app development Flutter, Firebase, Laravel, and APIs WhatsApp-like chatting app, Uber-like taxi app, Fitbit-like fitness app Contact me for expert advice on how to bring your business to the next level

🏆 Excited to be a Top Rated Freelancer on Upwork, in the top 10%! 🏆 📈 Over 270+ hours of successful work and 20+ completed projects with 100% client satisfaction. I specialize in designing and developing high-quality mobile apps that are creative, functional, and tailored to your needs. With clear communication and a client-focused approach, I ensure smooth collaboration and exceptional results. ✅ Expertise: 🌐 Languages & Frameworks: Flutter, Dart, BLoC, Provider, Riverpod. 🔄 State Management: Advanced knowledge of BLoC and Riverpod for scalable apps. 💳 Payment Gateways: Stripe, PayPal, ATM card integrations. ☁️ Backend & Cloud Services: Amazon Amplify, Firebase, Appwrite (authentication, database, analytics, notifications, and more). 📂 Source Repository: GitHub, BitBucket, GitLab. 🎨 UI/UX: Responsive designs with seamless UI integrations for great user experiences. 🌟 Why Choose Me? 6 years of experience in app development Client Satisfaction: 100% success rate with glowing reviews. Clear Communication: Regular updates to keep everything on track. Proven Expertise: High-performance apps that showcase your brand. 🤝 Let’s bring your app ideas to life! Whether you're a startup or an established company, I’m here to help. Contact me for a free consultation, and let’s make your vision a reality!