Product Marketing Lead

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). Workplace: Remote-friendly. European roles are remote-first with one week per month in Berlin. For US candidates, San Francisco is preferred, but we are open to exceptional candidates anywhere in the US. TL;DR We are hiring a Product Marketing Lead to define how Langfuse shows up in the market and turn that strategy into shipped work. This is a senior product marketing role with a strong IC expectation. You will own product marketing strategy and execution across positioning, launches, website narrative, funnel, customer proof, onboarding, sales collateral, and the way we explain Langfuse to technical users. You do not need to manage people from day one. You do need to think big, create clarity, prioritize the right work, and help the team deliver. Over time, this role can grow into people management, but the first bar is strategic judgment plus excellent execution. The best person for this role has marketed technical products to developers before. You know developer marketing only works when it is specific, useful, technically honest, and tied to a product people can actually try. You can build a category narrative, but you can also improve an onboarding email, a pricing page, a launch post, a sales deck, or a conversion report. You will join one of the fastest-growing open-source AI infrastructure stories of this time, while the category is still being defined. WHY PRODUCT MARKETING AT LANGFUSE Langfuse is already widely adopted by technical teams, but the category is still being defined. The product has real depth across tracing, evals, prompt management, datasets, metrics, self-hosting, and enterprise workflows. The marketing job is to make that depth clear without flattening it into vague AI platform language. This role owns the narrative system around Langfuse: how we explain the product, how users understand the path from first trace to production workflows, how launches land, how customer proof is packaged, and how the website, sales narrative, docs, webinars, workshops, and ClickHouse GTM channels reinforce each other. WHAT YOU'LL DO - Own Langfuse product marketing strategy and execution across positioning, messaging, launches, customer proof, website narrative, onboarding, funnel, and sales collateral - Build the marketing plan for your area: decide what matters, define the sequence, create the operating cadence, and turn strategy into shipped work - Define and maintain the category story for Langfuse: what we are, what we are not, how we describe LLM observability, evals, prompt management, datasets, agent observability, and the broader LLM engineering workflow - Own the funnel and conversion plan: website conversion, activation, onboarding, lifecycle emails, self-serve-to-sales handoff, product usage signals, and the metrics marketing reviews every week - Partner closely with product and engineering to turn product substance into launches, changelogs, blog posts, product pages, demos, webinars, workshops, and technical proof that developers trust - Make the Langfuse website sharper: clearer homepage narrative, product pages, customer proof, conversion paths, SEO/GEO inputs, and developer-facing explanations that are precise and useful - Build a repeatable launch system across product updates, changelog, blog, social, email, docs, website surfaces, sales enablement, and ClickHouse GTM channels - Lead customer marketing: customer stories, use cases, proof points, quotes, logo strategy, launch references, and reusable sales narratives - Create the canonical first-