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From the employer's careers site First seen 4 Nov 2026

Langfuse - Senior Product Engineer

Langfuse Germany Hybrid senior full-time

Salary

€90K - €160K per year

Apply on Langfuse

Description

Your work will have an outsized impact at Langfuse, an organisation delivering cutting-edge LLM applications.

Product engineers at Langfuse own features end-to-end, from understanding user problems to shipping solutions.

You will grow at Langfuse by:

  • Owning features from concept to delivery, including specs, code, docs, and changelogs
  • Working across the full stack, including React frontend, Next.js backend, ClickHouse analytics, and Python and TypeScript SDKs
  • Constantly interacting with users through calls, community channels, and support requests
  • Writing public documentation for the features you own
  • Shipping publicly during Launch Weeks, presenting features to the community

We're looking for someone who:

  • Has built features or products from scratch end-to-end
  • Has experience with TypeScript/React and data-intensive backends
  • Can manage projects independently and make informed decisions about what to build
  • Cares about great developer experience, API design, UI details, and clear documentation
  • Is excited about open-source software and talking to developers about their problems

Perks include:

  • Flexible work environment
  • Healthcare with employer contributions
  • Equity in the company through stock options
  • Flexible time off and global gatherings

Skills

Required

Nice to have

  • LLM engineering
  • analytics databases
  • complex data visualizations
  • ML/AI background
  • former founder or early startup experience

Ready to apply?

You apply with the employer directly. Their original posting is here: https://jobs.ashbyhq.com/clickhouse/0087feaa-a275-427d-bf4a-14a508708687

Apply on Langfuse