Chatbot Developer (WhatsApp, Telegram, Discord) - Freelance

Mindrift is looking for skilled Bot Developers (WhatsApp Business API, Telegram Bot API, Discord API) to join the Tendem project ( https://tendem.ai/ ) and build conversational bots and messaging-platform integrations for real-world applications. In this role, you'll use your bot engineering expertise, conversational design skills, and quality-focused approach to build reliable, useful bots and messaging integrations that deliver a great user experience. This part-time remote opportunity is ideal for professionals with hands-on experience building messaging bots, working with platform APIs and webhooks, and implementing conversational logic. What We Do The Mindrift platform connects specialists with innovative technology projects. Our mission is to help develop high-quality AI technologies by combining real-world expertise from professionals across the globe with advanced AI development efforts. About the Role This is a freelance role for a Tendem project. As a Bot Developer, you'll design, build, and refine messaging bots for one or more messaging platforms, including WhatsApp, Telegram, Discord, Slack, and similar platforms — for use cases such as customer service, appointment booking, order taking, content delivery, moderation, and automated notifications. Key Responsibilities Build bots for one or more messaging platforms, such as WhatsApp (Business API / Cloud API), Telegram (Bot API), Discord, Slack and similar messaging platforms. Design and implement conversational flows, dialogue state, and fallback handling. Integrate bots with LLMs (OpenAI, Anthropic, or similar) for natural language responses where appropriate. Connect bots to backend services, databases, CRMs, and third-party APIs (booking systems, payment, content sources). Handle webhooks, rate limits, and platform-specific message formats (interactive messages, buttons, media, templates). Review, debug, optimize, and refactor bot implementations to improve correctness, reliability, maintainability, a