Langfuse - Senior Product Engineer

About this role

Build and ship open-source Langfuse features end-to-end, from understanding user needs and specifying solutions to implementation, documentation, and release. The role spans frontend, backend, SDKs, and data-intensive systems, with frequent direct interaction with developer users.

About the company

ClickHouse is a high-performance columnar database built for real-time analytics on large volumes of data.

The team

Langfuse

Stack

What you'll do

• Own features from user discovery and specification through implementation, documentation, and release
• Work across frontend, backend, SDKs, analytics, and infrastructure as needed
• Talk with users through calls and community channels and use support insights to guide product decisions
• Write public documentation and present new features to the community

What we're looking for

• Experience building and shipping user-facing products end-to-end
• Experience building features or products from scratch
• Strong project ownership and ability to determine what to build and how to ship it
• Care for developer experience, including API design, UI details, and documentation
• Interest in open source and enthusiasm for talking with developers
• Comfort working in a small, accountable team

Nice to have

• Experience with ClickHouse, analytics databases, or complex data visualizations
• Founder or early-stage startup experience
• Contributions to popular open-source projects
• ML/AI background or familiarity with the LLM ecosystem
• CS or quantitative degree

Benefits

• Company stock options
• Flexible work environment
• Employer healthcare contributions
• Flexible time off in the US and generous time off in other countries
• $500 home-office setup allowance for remote employees
• Company-wide offsites