Chatbot Developer (WhatsApp, Telegram, Discord) - Freelance

Location: Brazil <p>Mindrift is looking for skilled <strong>Bot Developers (WhatsApp Business API, Telegram Bot API, Discord API)</strong> to join the Tendem project (<a href="[Link Protected] rel="nofollow ugc noopener" target="_blank">[Link Protected] 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.</p><p></p><p><strong>What We Do </strong></p><p>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.</p><p></p><p><strong>About the Role</strong> </p><p>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.</p><p></p><p><strong>Key Responsibilities</strong></p><ul><li>Build bots for one or more messaging platforms, such as WhatsApp (Business API / Cloud API), Telegram (Bot API), Discord, Slack and similar messaging platforms.</li><li>Design and implement conversational flows, dialogue state, and fallback handling.</li><li>Integrate bots with LLMs (OpenAI, Anthropic, or similar) for natural language responses where appropriate.</li><li>Connect bots to backend services, databases, CRMs, and third-party APIs (booking systems, payment, content sources).</li><li>Handle webhooks, rate limits, and platform-specific message formats (interactive messages, buttons, media, templates).</li><li>Review, debug, optimize, and refactor bot implementations to improve correctness, reliability, maintainability, and graceful error handling.</li><li>Implement logging, monitoring, and recovery so bots stay healthy in production.</li></ul><p></p><p><strong>Requirements and benefits</strong></p><p><em><strong>Educational qualifications</strong></em></p><ul><li><strong>At least 3 years of relevant experience</strong> backend, integration, automation, or bot development experience (required).</li><li><strong>Bachelor's or Master's Degree</strong> in Computer Science, Engineering, Information Technology, or related technical fields is a plus.</li></ul><p></p><p><em><strong>Academic and/or Professional Experience</strong></em></p><p>Candidates should have a strong foundation in bot development, messaging platform integrations, and building reliable conversational workflows. We are looking for specialists who can design and maintain production-ready bots, work confidently with APIs, webhooks, and backend services, and build stable, user-friendly bot experiences. Strong problem-solving skills, attention to detail, and the ability to work independently are essential.</p><p></p><p><em><strong>Technical Skills (Essential)</strong></em></p><ul><li>At least 1 year of hands-on experience building bots for at least one major messaging platforms (WhatsApp, Telegram, Discord, Slack, or similar) is required</li><li>Strong command of Python or Node.js for backend bot logic.</li><li>Solid experience with REST APIs, webhooks, OAuth, and async request handling.</li><li>Experience with relational or NoSQL databases for storing conversation state and user data.</li><li>Familiarity with LLM APIs (OpenAI, Anthropic) and prompt design for conversational use is a strong plus.</li><li>Understanding of platform-specific limits, message templates, and approval flows (e.g., WhatsApp template messages).</li><li>Experience with hosting and deployment (Docker, serverless, VPS, or PaaS)</li></ul><p></p><p><em><strong>Additional requirements</strong></em></p><ul><li>Strong attention to detail and commitment to bot reliability — no silent failures, no broken flows.</li><li>Self-directed work ethic with the ability to design and ship complete bots independently.</li><li>Portfolio or examples of bots you've built (required).</li><li>English proficiency: Upper-intermediate (B2) or above (required)</li></ul><p></p><p><strong>Project time expectations </strong></p><p>For this project, tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active.</p><p></p><p><strong>Compensation </strong></p><p>On this project, contributors can earn up to <strong>$30 per hour equivalent</strong>, depending on their level and pace of contribution. </p><p>Compensation varies across projects depending on scope, complexity, and required expertise. Please note that other projects on the platform may offer different earning levels based on their requirements.</p><p></p><p><strong>Why this freelance opportunity might be a great fit for you? </strong></p><ul><li>Work fully remote on your own schedule with just a laptop and stable internet connection.</li><li>Apply your expertise to real-world technology projects while gaining experience building high-quality solutions for a global platform. </li><li>Participate in performance-based bonus programs that reward high-quality work and consistent delivery.</li></ul> GDPR Compliance: Sourced via verified public channels under Legitimate Interests (Art. 6(1)(f) GDPR). [Contact Info Protected]

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