React Native & Flutter Expert Needed to Fix and Debug an Existing Mobile App

We need an expert developer to fix and debug an existing mobile app built with React Native and Flutter. The work includes identifying and resolving issues, improving app stability, and ensuring the app runs smoothly across devices. You should be comfortable reviewing existing code, diagnosing problems, and implementing reliable fixes. Experience with mobile app troubleshooting and performance optimization is important. This is a short-term project for someone who can work independently and deliver a stable, well-functioning app.