React Native / Flutter Developer Needed for Mobile App Improvements

We are looking for an experienced mobile app developer to help fix a bug in an existing iOS and Android application. The app is already built and functioning, but there is a specific issue that needs to be diagnosed and resolved without affecting the rest of the application. The ideal developer should have strong experience with React Native or Flutter and should be comfortable working with an existing codebase. You will need to review the current implementation, reproduce the issue, identify the root cause, and apply a clean and reliable fix. The bug may be related to the user interface, API integration, state management, authentication, navigation, notifications, or other mobile app functionality. You should have experience developing and debugging mobile applications for both iOS and Android. Experience with JavaScript, TypeScript, Dart, REST APIs, Firebase, Supabase, Git, and third-party integrations would be helpful. Knowledge of Swift or Kotlin is also a plus, especially if the issue involves platform-specific behavior. We are looking for someone who can work independently, communicate clearly, and make changes carefully without introducing new issues into the application. After fixing the bug, we would also like a short explanation of what caused the problem and what was changed. Experience with production mobile apps, App Store or Google Play releases, push notifications, subscriptions, real-time features, WebSockets, AI integrations such as OpenAI or Claude, or native mobile functionality would be an advantage. This is a small and focused bug-fixing task, but there may be an opportunity for additional mobile development work if the collaboration goes well. Please include a short introduction, your experience with React Native or Flutter, examples of similar mobile bugs you have fixed, and your availability to start.