Building Langfuse
Join the team building the leading open-source LLM engineering platform
While LLMs improve a lot, we don't see enough applications in production. Building these applications requires a new workflow of continuous monitoring and evaluation that we enable with Langfuse (learn more about our mission).
We are seeing strong traction (see metrics below), thus it is the right time to grow the team to build out our backend systems, product, and how we communicate with developers.
We are backed by Lightspeed, General Catalyst, Y Combinator, and angels. We are growing fast (see metrics below) and work with some of the best AI teams such as Canva, Samsara, Twilio, Khan Academy, and Intuit. In January 2026, we joined ClickHouse to accelerate our growth even further.
We operate out of San Francisco and Berlin, with team members spread across Europe. European roles are remote-first with one week per month in Berlin (travel covered); SF and Berlin locals use the office when it's useful.
If complex technical problems & great developer experiences excite you, we'd love to hear from you.
– Marc, Clemens, Max and the Langfuse team
Team
| Name | Role | Social Links |
|---|---|---|
| Marc Klingen | Co-Founder & CEO | Twitter, LinkedIn, GitHub |
| Max Deichmann | Co-Founder & CTO | Twitter, LinkedIn, GitHub |
| Clemens Rawert | Co-Founder & COO | Twitter, LinkedIn, GitHub |
| Marlies Mayerhofer | Founding Engineer | Twitter, LinkedIn, GitHub |
| Hassieb Pakzad | Founding Engineer | Twitter, LinkedIn, GitHub |
| Steffen Schmitz | Backend Engineer | LinkedIn, GitHub |
| Jannik Maierhöfer | Growth Engineer | Twitter, LinkedIn, GitHub |
| Felix Krauth | Growth | Twitter, LinkedIn, GitHub |
| Akio Nuernberger | Enterprise & Partnerships | Twitter, LinkedIn |
| Nimar Blume | Product Engineer | Twitter, LinkedIn, GitHub |
| Valeriy Meleshkin | Backend Engineer | LinkedIn, GitHub |
| Lotte Verheyden | Product Marketing Engineer | LinkedIn, GitHub |
| Leonard Wolters | Ops | LinkedIn, GitHub |
| Annabell Schäfer | Product Marketing Engineer | Twitter, LinkedIn, GitHub |
| Ben Bachem | Product Engineer | LinkedIn, GitHub |
| Mark Salpeter | Product Engineer | Twitter, LinkedIn, GitHub |
Curious to build with us?
If you are excited about delivering exceptional open-source developer experiences alongside an insanely motivated team that ships, reach out!
Read our Handbook
We publicly document our core principles and processes at Langfuse to align as a team, maintain transparency with our community, and help you determine if you'd enjoy working here.
Main Chapters
1
Why does Langfuse exist?
2
Who are our customers?
3
How did we get here?
4
Why do customers choose Langfuse?
5
Why is Langfuse Open Source?
6
How does Langfuse make money?
7
Who are we?
More Links
The handbook contains many more resources that define how we do things. These might be interesting to you:
Open Source
Almost everything we do is public. Get a glimpse of our work here:
Videos/Podcasts
If you prefer watching videos or listening to podcasts to get an impression, here are some suggestions:
Typescript AI Conf: AI Observability Panel
Launch Week 4: Demos of new features
Startup Insider Podcast (🇩🇪 only): our story, how we work, what's next
Max (CTO) on Clickhouse data model optimizations to make Langfuse work
Public Metrics
Langfuse is the most widely adopted LLM Engineering platform with 26,386 GitHub stars, 50M+ SDK installs per month, and 6M+ Docker pulls. Trusted by 19 of the Fortune 50 and 63 of the Fortune 500 companies.
Curious to build with us?
If you are excited about delivering exceptional open-source developer experiences alongside an insanely motivated team that ships, reach out!