Product Marketing Manager

ABOUT LANGFUSE Open Source LLM Engineering Platform that helps teams build useful AI applications via tracing, evaluation, and prompt management (mission https://tracking.us.nylas.com/l/6d586a21a6fc4e1a8aacc7eb75882b72/0/82383757e54352130f65066e1b2fc4708aacab7897561bcb8000fe4c8a9c6a21?cache_buster=1761124921, product https://tracking.us.nylas.com/l/6d586a21a6fc4e1a8aacc7eb75882b72/1/b9fba3a93b6ffcc0f99ecda62767a17cc437fe8fe0b16181d1c43c1391212e3d?cache_buster=1761124921). We are now part of ClickHouse. We're building the "Datadog" of this category; model capabilities continue to improve, but building useful applications is really hard, both in startups and enterprises. Largest open source solution in this category: trusted by 19 of the Fortune 50, >2k customers, >26M monthly SDK downloads, >6M Docker pulls. We joined ClickHouse in January 2026 because LLM observability is fundamentally a data problem and Langfuse already ran on ClickHouse. Together we can move faster on product while staying true to open source and self-hosting, and join forces on GTM and sales to accelerate revenue. Previously backed by Y Combinator, Lightspeed, and General Catalyst. We're a small, engineering-heavy, and experienced team in Berlin and San Francisco. We are also hiring for engineering in EU timezones and expect one week per month in our Berlin office (how we work https://langfuse.com/handbook/how-we-work/principles). WHY THIS ROLE EXISTS Langfuse has grown mostly through product-led, open-source adoption. We built a strong product, wrote useful docs and examples, stayed close to users, shipped in public, and helped developers understand how to build better AI applications. Since being acquired by ClickHouse, with access to ClickHouse's broader GTM resources, Langfuse now has a growing enterprise motion and a large self-hosted user base. This role exists to give Langfuse a clear, accurate narrative that is easier to understand and adopt. HOW THE ROLE WORKS This role is for a product marketer who likes technical depth. A technical background is a strong plus, but if you don't have one, curiosity and a drive to go deep will take you just as far. You'll become a true power user of Langfuse, and gain a front-row seat into how the best AI teams build production applications. You should expect close working relationships with both Langfuse teams and ClickHouse’s product marketing, sales and regional GTM teams. WHAT WE'RE LOOKING FOR - Substantial experience in product marketing, product, or a technical role, including time spent on industry or vertical marketing. - Past track record of crafting compelling messaging, positioning, and value propositions that resonate with developers, technical buyers, AI teams, enterprise stakeholders, and other highly technical audiences. - Excellent written and verbal communication skills, with the ability to articulate complex - concepts clearly and concisely. - Analytical mindset with the capacity to leverage data and metrics to measure performance in open-source PLG funnels and inform decision-making. - Cross-functional collaborator comfortable working with stakeholders across functions and levels. - A strong plus if you have a background in dev tools, open source, observability, or data/cloud infra; and/or if you have an existing public content or writing presence. WHAT YOU'LL DO - Build messaging, positioning, and value props that work for developers, technical buyers, and enterprise stakeholders alike - Own the category narrative (LLM observability, evals, prompt management, agent observability, self-hosting) - Create sales enablement and marketing collateral and assets, including website content, blogs, webinars and presentations, launch narratives, and more - Conduct competitive analysis to understand market trends, identify opportunities, and inform product and marketing strategies - Evaluate and iterate on strategies with metrics and feedback from stakeholders to track efficacy, identify areas for improvem…