Mobile App Developer Needed for iOS & Android App Improvements

We are looking for an experienced Mobile App Developer to help improve an existing iOS and Android Mobile App. This is a small development task for someone with strong experience in Mobile App Development, particularly cross-platform applications. The app is already live, so the main goal is to implement several improvements while keeping the existing functionality stable. Scope of work: Implement several new Mobile App features Update existing iOS & Android screens Improve Mobile App UI and user flows Integrate/update REST API functionality Work with authentication and user data Fix several existing Mobile App bugs Improve performance where necessary Test changes across iOS and Android devices Prepare clean, production-ready code Preferred experience: React Native, Mobile App Development, iOS Development, Android App Development, TypeScript, JavaScript, Firebase, API Integration, Mobile App Design. The existing project, requirements, designs, and API documentation will be provided. Estimated workload: 8–12 hours. We’re looking for a Mobile App Developer / React Native Developer who can quickly understand an existing application and deliver reliable improvements without unnecessary changes to the current architecture.