Cross-Platform Payment App Development

I need a skilled developer to create a payment app similar to Venmo or Cash App, available on both iOS and Android.

Key features:
- Peer-to-peer payments
- In-app wallet
- Transaction history

Authentication methods:
- Email and password
- Biometric (Fingerprint/Face ID)

Ideal skills and experience:
- Mobile app development for both iOS and Android
- Experience with secure payment systems
- Strong background in user authentication methods

Please provide examples of similar work done. Looking forward to your bids!