Senior Freelance Mobile App Developer (iOS, Android, React Native, Flutter, .NET MAUI)

React Native Development
Extensive experience building and modernising cross-platform mobile applications with React Native, including TypeScript/JavaScript migrations, native bridge integrations, UI testing, and CI/CD setup with tools like Bitrise.

Native iOS Development
Deep expertise in native iOS development using Swift, SwiftUI and Objective-C, covering app architecture, new feature development, UX, and enterprise distribution across multiple client projects.

.NET MAUI & Xamarin Development
Solid background in cross-platform mobile development with Xamarin and .NET MAUI, including Xamarin-to-MAUI migrations, push notifications, OAuth/SSO integration, and connected-device apps for iOS and Android.

Bluetooth & Wi-Fi Device Integration
Experience integrating hardware over Bluetooth/BLE and Wi-Fi in mobile applications, including connected consumer and industrial device apps.

C# / .NET Backend & App Development
Proficiency in C# and .NET for both mobile app logic and backend components, applied across Xamarin, MAUI and Windows platform projects.

OAuth / SSO & Enterprise Security
Implementation of authentication and single sign-on solutions including OAuth, SSO and Microsoft Intune in enterprise mobile applications.

CI/CD & UI Testing
Setup and maintenance of continuous integration and delivery pipelines, as well as automated UI testing for mobile applications.

Android Development
Experience with native Android development using Java and cross-platform solutions, including Jetpack Compose for personal projects.

SharePoint & Web Content Integration
Development of React Native apps with SharePoint integration and mixed native and web content for enterprise clients.

Worldwide Deployments & SDK Integration
Experience with worldwide app deployments including China-specific configurations and third-party SDK integrations.