---
title: 'Product Marketing Manager at Langfuse'
canonical: 'https://feeny.ai/job/product-marketing-manager-langfuse-europe-dqfgsg616ckn'
type: 'job'
last_seen: '2026-09-14'
---

# Product Marketing Manager at Langfuse

- **Company:** Langfuse
- **Location:** Europe
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-07-23
- **Last confirmed live:** 2026-09-14
- **Apply:** https://jobs.ashbyhq.com/langfuse/e821989d-b7f6-444d-880f-7a1b5f77a6ef

## Job description

## 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, you should be technical enough to use the product, understand the market, earn credibility with engineers, and spot vague or misleading marketing. 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.
- You have a technical background and an 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 improvement, and make data-driven recommendations
- Lead product and feature launches, and spend time with users, customers, prospects, sales, support, and community members.

Process We can run the full process to your offer letter in less than 7 days ([hiring process](https://langfuse.com/handbook/how-we-hire/hiring-process)).

Tech Stack We run a TypeScript monorepo: Next.js on the frontend, Express workers for background jobs, PostgreSQL for transactional data, ClickHouse for tracing at scale, S3 for file storage, and Redis for queues and caching. You should be familiar with a good chunk of this, but we trust you'll pick up the rest quickly ([Stack](https://langfuse.com/handbook/product-engineering/tech-stack), [Architecture](https://langfuse.com/handbook/product-engineering/architecture)).

## How we ship

[Link to handbook](https://langfuse.com/handbook/how-we-work/principles)

- We trust you to take ownership ([ownership overview](https://langfuse.com/handbook/how-we-work/ownership)) for your area. You identify what to build, propose solutions (RFCs), and ship them. Everyone here thinks about the user experience and the technical implementation at the same time. Everyone manages their own Linear.
- You're never alone. Anyone from the team is happy to go into a whiteboard session with you. 15 minutes of shared discussion can very much improve the overall output.
- We implement maker schedule and communication. There are two recurring meetings a week: Monday check-in on priorities (15 min) and a demo session on Fridays (60 min).
- Code reviews are mentorship. New joiners get all PRs reviewed to learn the codebase, patterns, and how the systems work ([onboarding guide](https://langfuse.com/handbook/product-engineering/how-we-work/onboarding)).
- We use AI as much as possible in our workflows to make our users happy. We encourage everyone to experiment with new tooling and AI workflows.

## Why Langfuse (now part of ClickHouse)

- This role puts you at the forefront of the AI revolution, partnering with engineering teams who are building the technology that will define the next decade(s).
- This is an open-source devtools company. We ship daily, talk to customers constantly, and fight for great DX. Reliability and performance are central requirements.
- Your work ships under your name. You'll appear on [changelog posts](https://langfuse.com/changelog) for the features you build, and during launch weeks, you'll [produce videos](https://langfuse.com/blog/2025-10-29-launch-week-4) to announce what you've shipped to the community. You’ll own the full delivery end to end.
- We're solving hard engineering problems: figuring out which features actually help users improve AI product performance, building SDKs developers love, visualizing data-rich traces, rendering massive LLM prompts and completions efficiently in the UI, and processing terabytes of data per day through our ingestion pipeline.
- You'll work closely with the ClickHouse team and learn how they build a world-class infrastructure company. We're in a period of strong growth: Langfuse is growing organically and accelerating through ClickHouse's GTM. ([Why we joined ClickHouse](https://langfuse.com/blog/joining-clickhouse))
- If you wonder what to build next, our users are a Slack message or a Github discussions post away.
- You’re on a continuous learning journey. The AI space develops at breakneck speed and our customers are at the forefront. We need to be ready to meet them where they are and deliver the tools they need just-in-time.

## About Langfuse

## Company Overview
- **One-liner**: Langfuse is an open-source AI engineering platform that provides observability, prompt management, evaluations, and analytics for teams building LLM applications.
- **Entity Type**: Private (Acquired by ClickHouse in January 2026)
- **Headquarters**: San Francisco, USA & Berlin, Germany
- **Founded**: 2022
- **Founders**: Marc Klingen (CEO), Max Deichmann (CTO), Clemens Rawert (COO)

## Core Business
- **Primary industry**: AI Engineering / LLM Observability & Evaluation
- **Target customers**: B2B, Enterprise, and Developer teams building LLM applications
- **Mission**: To help teams build, monitor, and improve LLM applications across the full development lifecycle, enabling more AI applications to reach production

## Products & Services
- **Langfuse Platform**: An integrated open-source (MIT licensed) platform combining observability (hierarchical traces), prompt management, evaluations (LLM-as-a-judge, heuristics, human review), experiments, and analytics dashboards. It covers the full LLM engineering loop from prototype to production.
- **Self-Hosted Deployment**: Available via Docker Compose, Kubernetes (Helm), and Terraform for AWS, GCP, and Azure. Scales to billions of monthly events.
- **Cloud / Managed Service**: Free tier (50k observations/month) and paid enterprise tiers with 99.9% uptime SLA.
- **SDKs & Integrations**: Native SDKs for Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift; OTel-native; 100+ integrations with frameworks (LangChain, Vercel AI SDK, CrewAI) and model providers (OpenAI, Anthropic, Google Gemini).
- **MCP Server & CLI**: Developer tools for interacting with Langfuse from IDEs and CI/CD pipelines.

## Market Standing
- **Valuation/Market Cap**: Not disclosed (acquired by ClickHouse in January 2026)
- **Key Metric**: Processes 10+ billion observations per month; 50M+ SDK installs/month; 2,300+ customers
- **Notable Investors/Partners**: Backed by Lightspeed, General Catalyst, Y Combinator, and angel investors. Acquired by ClickHouse (January 2026). Used by 19 of the Fortune 50, including Canva, Samsara, Twilio, Khan Academy, and Intuit.
- **Growth Signals**: Acquired by ClickHouse in January 2026; 22,000+ GitHub stars; 5,000+ Discord members; 100,000+ engineers building on the platform; team grew to 19 people (as of YC profile); 50M+ SDK installs/month.

## Competitive Advantages
- **Open Source (MIT License)**: Full product features are MIT licensed, allowing self-hosting, forking, and modification — no vendor lock-in.
- **OTel Native & Async by Default**: Works with standard OpenTelemetry instrumentation and never blocks application performance.
- **Built for Scale**: ClickHouse OLAP backend enables querying millions of traces in milliseconds; processes 10+ billion observations/month.
- **Full Lifecycle Platform**: Combines observability, prompt management, evals, experiments, and human annotation in one integrated workflow — not just a point solution.
- **Enterprise Trust**: Used by 19 of the Fortune 50, with strong security and compliance posture.

## Strategic Focus
- **Post-Acquisition Growth**: Joining ClickHouse to accelerate growth, likely focusing on deeper integration with ClickHouse's OLAP database and expanding enterprise reach.
- **Developer Experience**: Continued investment in MCP servers, CLI tools, and coding agent integrations (Claude Code, Cursor, Codex) to make the platform "made for developers, loved by agents."
- **Open Source Community**: Maintaining the largest OSS community in the LLM observability category, with weekly releases and community hours.

## Why Work Here
- **Strong Traction & Impact**: Work on a platform used by 19 of the Fortune 50, processing 10+ billion observations/month — your work directly impacts how the world's leading AI teams ship production LLM applications.
- **Remote-First with In-Person Connection**: European roles are remote-first with one week per month in Berlin (travel covered); SF and Berlin locals use the office when useful. Flexible, async-friendly culture.
- **Transparent Culture**: Everything is public — the company handbook, core principles, processes, and metrics. Radical transparency for alignment and community trust.
- **Acquired by ClickHouse**: Joining a larger, well-funded infrastructure company (ClickHouse) provides stability, resources, and a broader platform for growth while maintaining Langfuse's product identity.
- **Small, High-Impact Team**: ~19 people as of acquisition, meaning significant ownership and influence for new hires.
- **Open Source Ethos**: MIT-licensed codebase, active community (22k+ GitHub stars, 5k Discord members), and a culture of contribution.

## Sources
1. [langfuse.com](https://langfuse.com/)
2. [langfuse.com/careers](https://langfuse.com/careers)
3. [jobs.ashbyhq.com/langfuse](https://jobs.ashbyhq.com/langfuse)
4. [ycombinator.com/companies/langfuse](https://www.ycombinator.com/companies/langfuse)
5. [github.com/langfuse/langfuse](https://github.com/langfuse/langfuse)

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