Nkaze A.

React Native| Flutter | iOS & Android | TypeScript | Web

🚀 Need a developer who actually knows how to code and has fully functional apps in production? I'm a Full-Stack Developer with 6+ years of experience specializing in React Native, React.js, JavaScript, TypeScript, Flutter and modern cross-platform application development. I build production-ready mobile apps for iOS and Android, responsive web applications, SaaS platforms, MVPs, dashboards, and API-driven products. My strength is not just building screens. I understand how the frontend, mobile application, backend APIs, authentication, databases, payments, third-party integrations, security, and deployment need to work together to create a reliable product. 📱 MOBILE APP DEVELOPMENT I build cross-platform and native mobile applications using: • React Native • React Native + TypeScript • Flutter & Dart • Android Native • Kotlin • Jetpack Compose • iOS / Swift • SwiftUI • JavaScript / TypeScript I can build new applications from scratch, convert Figma designs into production interfaces, integrate existing APIs, add new features to existing apps, fix bugs, improve performance, and prepare applications for App Store and Google Play deployment. 🌐 WEB DEVELOPMENT I also build modern web applications using: • React.js • Next.js • TypeScript • JavaScript • Responsive Web Applications • SaaS Applications • Admin Dashboards • Customer Portals • Progressive Web Apps (PWA) • Internal Business Applications 🔌 API & BACKEND INTEGRATION I specialize in connecting applications to reliable backend systems and third-party services: • REST APIs / RESTful APIs • GraphQL • JSON APIs • Third-party API integrations • OAuth / JWT authentication • Authentication & Authorization • Role-Based Access Control (RBAC) • Real-time APIs • WebSockets • Secure API communication Backend technologies and platforms I work with include: • Supabase • Firebase • PostgreSQL • Node.js • AWS • Cloud services • Database-driven applications 💳 PAYMENTS & FINTECH FEATURES I can integrate payment and transaction workflows into mobile and web applications, including: • Stripe • Payment Gateway Integration • Payment APIs • Subscription Billing • Recurring Payments • Checkout Flows • Transaction History • Payment Status • Webhooks • Wallet-related functionality • Financial API integrations I understand that financial applications need to correctly handle authentication, transaction states, API failures, retries, security, and asynchronous processing rather than assuming every transaction succeeds immediately. 🔔 ADVANCED MOBILE FEATURES • Push Notifications • In-App Notifications • Real-Time Chat • Messaging • Audio / Video integrations • Geolocation • Maps • GPS-based features • Offline Functionality • Background Tasks 🤖 AI & THIRD-PARTY INTEGRATIONS I can integrate AI-powered functionality and third-party APIs into existing applications, including: • OpenAI API • AI-powered features • AI assistants / chatbots • AI content generation • AI API integrations • Third-party SDKs ☁️ CLOUD & DEPLOYMENT I have experience working with: • AWS • Firebase • Supabase • Production deployments • App Store deployment • Google Play deployment 🧩 TYPES OF APPLICATIONS I CAN BUILD I've worked across different product categories, including: ✅ Fintech & Payment Applications ✅ Mobile Banking / Money Transfer ✅ E-commerce & Marketplace Apps ✅ Booking & Appointment Apps ✅ Education & E-Learning Platforms ✅ Healthcare & Wellness Applications ✅ Social & Community Applications ✅ Food Delivery Applications ✅ Service-Based Applications ✅ Real Estate Applications ✅ Business Management Applications ✅ SaaS Platforms ✅ Admin Dashboards ✅ CRM & Internal Tools ✅ Subscription-Based Applications ✅ On-Demand Applications ✅ Location-Based Applications ✅ Chat & Messaging Applications ✅ Productivity Applications ✅ MVP & Startup Applications 🏗️ FROM MVP TO PRODUCTION Whether you have: An idea → Figma designs → an existing codebase → APIs → a half-built MVP → or a production application that needs improvement I can help you move it forward. My typical process is: Product requirements → Architecture → UI implementation → API integration → Authentication → Feature development → Testing → Performance optimization → Deployment I 🚀 LET'S BUILD YOUR PRODUCT If you're looking for a React Native Developer, React Developer, Mobile App Developer, iOS Developer, Android Developer, Flutter Developer, TypeScript Developer, or Full-Stack Developer to build or improve your product, you're in the right place. Send me your requirements, Figma designs, API documentation, existing codebase, or product idea. Let's turn it into a reliable, production-ready application.