Senior Backend Engineer

Langfuse is the open-source LLM engineering platform designed to help teams build production-grade LLM applications faster.Langfuse addresses these challenges by providing an open-source platform to debug and improve LLM applications. Langfuse captures the full context of your application, tracing the complete execution flow—including API calls, retrieved context, prompts, parallelism, and more. By enabling hierarchical representations through nested traces, Langfuse helps you understand complex logic built around LLM calls. Langfuse also offers full support, including audio, images, and attachments.Metrics & Quality, breaking down metrics by user, session, feature, model, and prompt version, allowing for detailed analysis. To assess output quality, Langfuse facilitates the collection of , performs automated , and supports manual within the platform. It also offers features, allowing you to handle prompts effectively and perform over new ideas and systematically track success.Testing & ExperimentationFor testing and experimentation, Langfuse supports and running tests of via curated . This provides quantitative insights into the impact of changes, helping you understand and improve your LLM applications more effectively.