React Native Chat Performance Optimization & APK Size Reduction Expert Needed

We are looking for an experienced React Native performance optimization specialist to analyze, optimize, and stabilize our chat-based mobile application. The app includes one-to-one chats, groups, channels, reactions, message editing, media sharing, and local data storage. The primary objective is to significantly improve app responsiveness, chat loading speed, scrolling performance, memory usage, and overall user experience while also reviewing and optimizing APK size and dependencies. Scope of Work :: • Chat Performance Optimization : • Optimize chat screen and home screen loading performance. • Improve database queries, subscriptions, and data synchronization. • Optimize message rendering and list virtualization. • Improve scrolling performance for large conversations. • Reduce message sending delays and UI lag. • Optimize reactions, message editing, and related interactions. • Identify and resolve memory consumption issues within chat modules. • Review local storage implementation and performance bottlenecks. APK Size & Dependency Optimization : • Analyze current APK/AAB size and identify optimization opportunities. • Audit dependencies, libraries, and plugins. • Review build configurations and optimization settings. • Identify redundant, unused, or heavy packages. • Recommend or implement safer and lighter alternatives where appropriate. • Apply safe cleanup and optimization measures. Performance Validation & Stabilization : • Perform end-to-end performance validation. • Conduct memory profiling and resource analysis. • Execute regression testing to ensure existing functionality remains unaffected. • Perform final cleanup and stabilization. • Provide recommendations for future scalability improvements. Technical Requirements : • Strong experience with React Native applications. • Experience optimizing large-scale chat or messaging applications. • Knowledge of Realm DB, SQLite, AsyncStorage, or similar local databases. • Experience with React Native performance profiling tools. • Expertise in memory optimization and rendering performance. • Understanding of APK/AAB size optimization techniques. • Ability to analyze large datasets and conversations efficiently. • Experience with Android performance tuning and build optimization. Expected Deliverables :: • Optimized source code with clear documentation. • Before-and-after performance metrics. • Technical summary report detailing implemented improvements. • List of modified files and changes made. • APK size optimization report. • Dependency and plugin audit report. • Final performance validation report. Before-and-after comparison summary. Remaining recommendations and future optimization opportunities.