MacOS Crypto Wallet Development

I'm looking for a talented developer with real-world crypto experience to create a MacOS crypto wallet application. This is a personal project and the application should support Bitcoin and Ethereum.

Key Requirements:
- Solid understanding of UI concepts
- Hands-on experience in the crypto landscape
- Proven track record in MacOS app development
- Experience in developing secure crypto wallets
- Knowledge of Bitcoin and Ethereum protocols

Please provide examples of your previous work related to crypto and MacOS app development in your bid.