Telegram Mini App Development

I'm looking for a skilled developer to create a Telegram mini app with the following functionalities:

- Start counting from zero
- Button 1: Subscribe to other Telegram channels
- Button 2: Build a referral network
- Button 3: Connect to the Telegram wallet for payments

The main goal of this app is to integrate payment features. The app should only support payments via Cryptocurrency, specifically USDT.

Ideal skills for this job include:
- Experience in developing Telegram bots or mini apps
- Proficiency in working with Telegram's API
- Knowledge of cryptocurrency, specifically USDT
- Understanding of referral systems