Finalize Instagram Login System in React Native

I'm seeking a React Native developer to complete an Instagram login system for my app. The login should support both email/password authentication and OAuth via Instagram.

Key Requirements:
- Implement Email and Password Login
- Incorporate OAuth Login with Instagram
- Collecting user email during the login process
- Validating login inputs including email format and password strength

Ideal Skills:
- Proficiency in React Native
- Experience with Instagram's OAuth
- Strong understanding of input validation techniques
- Knowledge of best practices for user data collection