Product Engineer

About the company

• Langfuse — open source (MIT) LLM observability platform, 35,000+ GitHub stars, SDKs downloaded 100M+ times per month
• Part of ClickHouse, globally distributed, remote-friendly, operating in 25+ countries

Responsibilities

• Own features end-to-end: user research, spec, code, docs, changelog
• Work across the full stack: React frontend, Next.js backend, ClickHouse analytics, Python and TypeScript SDKs, docs, Terraform modules, Rust workers
• Talk to users constantly: calls, community channels, support requests
• Write public documentation for owned features
• Ship publicly during Launch Weeks and present to the community

Requirements

• Experience building and shipping user-facing products end-to-end, ideally TypeScript/React with data-intensive backends
• Ability to manage projects independently and develop strong product conviction
• Taste for great developer experience: API design, UI details, clear documentation
• Interest in open source and talking to developers about their problems
• CS or quantitative degree preferred
• Bonus: ClickHouse, analytics databases, complex data visualizations, founder/early startup experience, OSS contributions, ML/AI background

Conditions

• Flexible work environment, remote-friendly
• Healthcare employer contributions
• Stock options
• Flexible time off
• USD $500 home office setup for remote employees
• Global company offsites