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Senior Flutter / React Native Developer – Mobile App Bug Fixing & Optimization\

Budget
$50.0
Contract
FIXED
Client
Australia · ★ 5.00 (109)
Live feed
Upwork

flutter, react-native, dart, javascript, firebase, api-integration, android, software-debugging

Preferred qualifications

  • Experience: Intermediate
We are looking for a skilled Senior Mobile App Developer experienced in Flutter and/or React Native to work on an existing mobile application. The primary focus is identifying and fixing bugs, resolving technical issues, and improving overall app stability and performance. Key Responsibilities Debug and fix existing application issues across Android and iOS. Identify root causes of crashes, UI glitches, and functionality errors. Troubleshoot API integrations, third-party libraries, and backend communication. Improve app performance, responsiveness, and stability. Review existing code and implement clean, scalable solutions. Test fixes and ensure everything works as expected across devices. Required Skills Strong hands-on experience with Flutter and/or React Native. Proven experience in mobile app debugging and maintenance. Knowledge of Dart, JavaScript/TypeScript, and mobile app architecture. Experience with REST APIs, Firebase, and state management. Familiarity with Android Studio, Xcode, Git, and app deployment. Strong troubleshooting and problem-solving skills. How to Apply Please include: Your experience with Flutter and React Native. Relevant portfolio or live app links. Examples of previous bug-fixing projects. Your hourly rate and availability. We prefer a developer who can quickly understand an existing codebase, take ownership of issues, and deliver reliable solutions. We are looking for someone available to start immediately.
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