Langfuse - Senior Software Engineer, SDK

GermanyRemoteFull-time2026-11-10 → 2026-11-11

Remote

Core

Designing, maintaining, and improving open-source SDKs (Python, TypeScript) and integrations for LLM applications, ensuring high performance and developer experience.

Role type

Senior Software Engineer (SDK & Integrations)

Builds

Python and TypeScript SDKs, OpenTelemetry integrations, and support for 40+ AI frameworks (LangChain, LlamaIndex, etc.)

Domain

LLM engineering, Observability, Open Source

Deliverable

production ML models

Required skills

SDK development, API design, performance optimization, OpenTelemetry, Python, TypeScript, versioning strategies

Preferred skills

OpenTelemetry internals, startup experience, open source contributions, ML/AI background

Technologies

Python, TypeScript, OpenTelemetry, LangChain, LlamaIndex, Pydantic AI, CrewAI, Amazon Bedrock, ClickHouse

Responsibilities

Maintain SDK reliability and performance across serverless and long-running environments; Design developer-friendly APIs and documentation; Integrate with new AI frameworks and model providers; Manage OpenTelemetry endpoint robustness; Own SDK documentation and migration paths

About ClickHouse

Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 3,000 customers and ARR that has grown over 250 percent year over year, ClickHouse leads the market in real-time analytics, data warehousing, observability, and AI workloads.