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Langfuse

Open source observability for LLM applications. Y Combinator W23.

Early-stageUSAOpen sourceAI engineeringEarly stageYC-backed

Famous for

What Langfuse is known for

  • Building the observability layer for production LLM apps, addressing the debugging and monitoring gap teams face at scale.
  • Founded by engineers who hit LLM pain points firsthand during Y Combinator W23, now operating dual offices.
  • Attracting growth talent to an open source platform where developers can instrument and trace LLM behavior in real time.

For growth marketers

What it's like to work at Langfuse

Early-stage, post-YC. Small team building developer infrastructure for a fast-growing AI engineering market. Growth marketer here owns product positioning and awareness in a technical buyer segment. You're selling to engineers who care about observability and production reliability, not features. Expect to move fast and shape how the market understands LLM observability.

About

In their own words

Langfuse is building the open source AI engineering platform to help teams build production- ... LLM applications faster (**[Why Lang ... ?](/why)**). ... We initially realized the pains of solving problems with LLMs during Y Combinator's W23 batch in San Francisco. We now have two offices, a.

Open positions

Posiciones abiertas (1)

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FAQ

Questions about Langfuse

Is Langfuse hiring growth marketing roles?

Yes. Langfuse has 1 open growth role on Growth.Talent today. Listings refresh weekly from scraped and recruiter-posted sources.

Does Langfuse hire remote growth talent?

1 of Langfuse's 1 listing (100%) are remote or hybrid. Filter by location on each listing for specifics.

How do I apply to Langfuse?

Click any open role on this page to view the listing and apply directly. Growth.Talent forwards applications to the recruiter's inbox or to Langfuse's ATS. No intermediary, no resume gate.

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