About

Hi, I’m Marc, a developer, founder, and maker from Berlin. Together with Max  and Clemens , I co-founded Langfuse  (YC W23), an open-source platform that helps teams build, evaluate, and improve LLM applications and AI agents. In January 2026, we joined ClickHouse , where I now lead the Langfuse team.

Today, Langfuse is used by more than 50,000 companies , including 21 of the Fortune 50, and its SDKs are installed over 50 million times each month.

What I enjoy most is working closely with people building AI products at the frontier. I spend a lot of time with the Langfuse open-source community and our customers, learning how they work, digging into their problems, and turning those insights into a better product.

I’m interested in economics, technology, and the intersection of the two. I have enjoyed tinkering with computers and building things since high school. After studying business as an undergraduate, I studied Computer Science and Innovation at the Technical University of Munich and joined CDTM. Along the way, I had the opportunity to live in China, the United States, Ireland, and Mexico.

During a brief period in research, I explored the economics of open-source software and approaches to the oracle problem in blockchain technology. Before starting Langfuse, I worked at Google, DHL, Cherry Ventures, and several startups in roles spanning software engineering, product management, business intelligence, and sales.

I occasionally share what I’m learning and working on online (X , GitHub , LinkedIn ). If you’re building with Langfuse, working on AI infrastructure, or thinking deeply about developer tools and open source, I’d be happy to hear from you.