Telegram Bot for Custom Commands

I run a Telegram channel and want to add a lightweight bot that replies automatically when members type specific commands I define. The focus is purely on custom command replies—no welcome messages, FAQ flows, weather, or news feeds—so the logic can stay tight and fast... (Budget: $250 - $750 USD, Jobs: API Development, Bot Development, JavaScript, Node.js, PHP, Python, Software Architecture, Telegram API)