Telegram, WhatsApp & Discord Bots

I need production-ready chatbots built for Telegram, WhatsApp and Discord. The exact mix of platforms can be finalised once we talk, but my goal is to have a clean, maintainable codebase that can be deployed quickly and scaled later... (Budget: $2 - $8 USD, Jobs: API Development, Chatbot Development, Discord API, Google App Engine, JavaScript, Node.js, Python, Telegram API)