Telegram Mini App Development: Automated Digital Store with Wallet and Upi Payments

We are seeking an experienced developer to create a Telegram Mini App (Web App) that functions as an automated digital store. The application will feature a comprehensive e-commerce catalog system, allowing users to browse and purchase digital products seamlessly. The core functionalities include:

1.  Sleek, Dark-themed Web UI: The Mini App requires an intuitive and visually appealing dark-themed user interface to display available digital accounts/vouchers, their current stock status, and a clear 'Buy' button for easy purchasing.
2.  In-app Wallet System: Implement a robust wallet system where users can view their current balance and easily load funds. This wallet will be central to all in-app transactions.
3.  Automated upi qr code payment integration: integrate an automated payment gateway using upi qr codes. The system must be capable of automatically verifying incoming transactions made via the QR code and instantly crediting the corresponding balance to the user's in-app wallet.
4.  Auto-delivery of Digital Products: Upon successful purchase, the system should automatically deliver the digital product credentials (e.g., From a text database) directly to the user's Telegram chat. Concurrently, the purchased amount must be automatically deducted from the user's wallet balance.
5.  Secure Admin Panel: Develop a secure and user-friendly admin panel to manage all aspects of the digital store. This includes inventory stock management, setting individual user purchase limits (e.g., A maximum of 10 items per user), and adjusting product pricing.

We are looking for a freelancer with a strong portfolio demonstrating previous experience in Telegram Mini App development, bot creation, and automated payment integrations. The ideal candidate will ensure a secure, efficient, and user-friendly experience for our customers.