Backend Developer

Описание Langfuse ingests AI tracing data and provides open-source infrastructure for observability, data processing, and evaluation. It operates Langfuse Cloud and supports self-hosting across deployment environments.

Задачи • Own and optimize the data ingestion pipeline for throughput, latency, reliability, and cost efficiency • Design ClickHouse schemas, optimize merge strategies, tune batch inserts, and write and review analytical queries for dashboards and the UI • Build infrastructure-heavy features, including asynchronous LLM-as-a-Judge processing, large-scale alerting, client-code execution, and batch dataset operations • Run load tests against production data to evaluate schemas, migrations, and query optimizations • Prototype table designs, run them in parallel on real traffic, and compare results before committing changes • Plan for infrastructure scaling as product directions expand, including long-running agent observability and real-time evaluation • Operate Langfuse Cloud across production environments and support self-hosting from Docker Compose to enterprise-grade Helm chart deployments

Требования • Strong backend engineering skills and interest in database internals, query optimization, and distributed systems • Enjoy working with large volumes of data • Experience with analytical databases, data pipelines, or high-throughput event processing • Ability to organize work independently and form strong opinions about what to build and how to ship it •…