This is a role that **TechTree is recruiting for on behalf of one of our clients.** TechTree is an AI\-driven recruitment platform working with high\-growth companies. When you apply, our AI Agent matches you **not just to this role** , but to other relevant opportunities across our network, so **one application can unlock multiple roles.** **Marketing Manager — Own marketing end\-to\-end for a fast\-growing real\-world AI training data company. Remote, based in Brazil.** Our client is one of the fastest\-growing data companies, providing real\-world training data to the largest AI and robotics companies, backed by Y Combinator and top VCs, with a mission to advance embodied AGI through real\-world data and research. As Marketing Manager, you'll own marketing from strategy to execution — understanding the objective, setting the KPIs, hitting them, and reporting back. **What You'll Do** → Turn company objectives into marketing plans, KPIs and results → Run growth hacking and performance ads to grow the contributor network and brand → Manage social media across all channels → Manage influencer relationships from outreach through follow\-up → Handle design and copywriting yourself **What We're Looking For** → 3\+ years of marketing experience in startups, with proof: campaigns, growth numbers or brands you can point to → Fluency in both Portuguese and English → Strong design and copywriting skills → AI\-native — agentic workflows and GenAI as your production stack → High ownership and an entrepreneurial mindset USD 3,000/month base plus monthly bonuses tied to agreed objectives. **What is TechTree?** TechTree combines AI agents with a human support team to give candidates a better, more transparent hiring experience. **Our AI Agent** gets to know your background, experience, and what you're optimising for. It continuously matches you to live roles across our network where there's **genuine alignment, not just keyword overlap.** **Our Human Team** is there to support you through the process — answering questions, adding context, and making sure you're never left guessing or ghosted. **We only post real jobs.** Every role on TechTree is a live, active hire.