React-Native App Development

I need a skilled React-Native developer to build a mobile app with a focus on robust feature functionalities.

Description:
I need a mobile application that allows users to leave protected digital messages to be delivered to specific contacts at a particular moment.

Introductory explanation screen
Login system (Google, Apple, Facebook, and email/password – including registration and password recovery)
File upload (we should review the documentation to confirm the maximum file size allowed. Later on, we might add a feature similar to Instagram Live, so videos are stored only on the server instead of the user’s device)
Contact selection (for the three main use cases: confirmation, diffusion, and one additional case)
Payment process (we can agree on the simplest solution – for example, a fixed amount of $10 or based on the number of megabytes uploaded)

Publish on Google Play Store and Apple App Store
Implement a payment system (Stripe or another globally compatible solution)

Technical Detail
React Native (Expo)
Firebase (Authentication + Storage)
Stripe (test mode)
Clerk as login system
Vercel for backend / API Routes