TestFlight App Setup for React Native

I'm seeking an experienced mobile app developer to assist with deploying a React Native app on TestFlight. My current developer is facing build and deployment errors that need to be resolved.

Key Tasks:
- Collaborate with my developer to diagnose and fix build and deployment errors.
- Ensure the app is properly configured and ready for TestFlight.

Ideal Skills:
- Strong expertise in React Native.
- Proficiency in iOS and Android deployment processes.
- Experience with troubleshooting build and deployment issues.

Please provide examples of similar work done, particularly with React Native and TestFlight.