Langfuse - Senior Software Engineer, SDK

The role

You will own and maintain Python and TypeScript SDKs built on OpenTelemetry. You will design APIs, manage integrations with AI frameworks, and write public documentation.

What you will do

• Own Python and TypeScript SDKs built on OpenTelemetry
• Ensure SDK reliability, performance, and developer experience
• Design APIs including function naming, parameter structure, and versioning
• Maintain integrations with AI frameworks and model providers
• Maintain the OpenTelemetry endpoint
• Write public documentation, integration guides, and migration paths

Required qualifications

• Experience building or maintaining SDKs, client libraries, or developer tools
• Deep understanding of performance including profiling, benchmarking, and minimizing CPU/memory overhead
• Ability to manage projects independently
• Thoughtfulness regarding versioning, backwards compatibility, and migration paths
• Interest in open source software

Nice to have

• CS or quantitative degree
• Experience with OpenTelemetry internals or observability instrumentation
• Former founder or early startup experience
• Contributions to popular open source SDKs or developer tools
• ML/AI background or familiarity with the LLM framework ecosystem

Benefits

• Flexible work environment
• Employer contributions towards healthcare
• Stock options
• Flexible time off in the US or generous entitlement in other countries
• USD$500 Home office setup for remote employees
• Opportunities for in-person connection at company-wide offsites

About the company

ClickHouse is a globally distributed company that is remote-friendly and operates in over 25 countries.