10 days ago
Paris, France +4 moreSenior
Responsibilities
- Own the Python and TypeScript SDKs, including their reliability, performance, API design, error handling, batching, asynchronous flushing, and graceful degradation.
- Design developer-friendly APIs, versioning strategies, breaking-change communication, documentation, and migration paths.
- Maintain and expand integrations with AI frameworks, model providers, and gateways.
- Maintain the OpenTelemetry/OTLP endpoint and support Langfuse features across additional OpenTelemetry-compatible languages.
- Write SDK documentation, integration guides, and upgrade paths alongside new releases.
- Manage projects end to end by identifying work, proposing solutions, and shipping implementations.
- Engage with developers and the open-source community about integration challenges and product improvements.
Requirements
- Experience building or maintaining SDKs, client libraries, or developer tools, ideally with Python and/or TypeScript.
- Strong understanding of performance profiling, benchmarking, and minimizing CPU and memory overhead in hot paths.
- Ability to independently manage projects and develop conviction about what to build and how to ship it.
- Thoughtfulness about versioning, backward compatibility, and migration paths.
- Interest in open-source software and enthusiasm for working with developers on integration challenges.
- A CS or quantitative degree is preferred.
- Experience with OpenTelemetry internals or observability instrumentation is a bonus.
- Contributions to popular open-source SDKs or developer tools are a bonus.
- Former founder or early-stage startup experience is a bonus.
- ML/AI experience or familiarity with the LLM framework ecosystem is a bonus.
Benefits
- Open-source work released under the MIT license with direct visibility to users and the developer community.
- Approximately one week per month in the Berlin office; engineering hiring is available in EU time zones.
- Small, engineering-focused team with substantial ownership and end-to-end delivery responsibility.
- Close collaboration with the ClickHouse team and exposure to large-scale infrastructure engineering.
- Regular code-review mentorship, whiteboard collaboration, and a continuous learning environment.
- The hiring process can reach an offer letter in less than seven days.
Tech Stack
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