Custom Telegram Data Processing Bot

I need a custom Telegram bot designed for data processing. The bot will primarily handle user input and interact with databases.

Key Functions:
- Process user input for data aggregation.
- Fetch and relay information from databases.
- Send notifications for news updates and system alerts.

Ideal Skills:
- Experience with Telegram bot development.
- Proficiency in handling databases.
- Strong background in data processing.
- Familiarity with setting up notifications.

Please provide examples of similar work done.