Langfuse

Full-stack Engineer

• Own features end-to-end: from talking to users, to writing the spec, to shipping the code and docs, to writing the changelog post with your name on it.
• Work across the full stack: and we mean full. Our surface area is wide: React frontend, Next.js backend, ClickHouse analytics, Python and TypeScript SDKs, public docs, Terraform modules, and more.
• Talk to users constantly: jump on calls, respond in community channels, and route support requests.
• Write public documentation about the features you own.
• Ship publicly during Launch Weeks: we've run four Launch Weeks so far, dropping a new feature every day for a week.
• You're never alone. Anyone from the team is happy to go into a whiteboard session with you.

Senior Product Engineer

Developer Relations

• Make our documentation the best out there
• Blog & Social posts to define how everyone should think about LLM Engineering
• Write Cookbooks / Code examples that provide real value for users
• Produce Videos and Memes
• Build applications that help us grow in unconventional ways
• Deeply engage with OSS community

DevRel Engineer

Engineer

• Make our best customers successful in production and expanding over time.
• Improve net revenue retention via adoption, outcomes, and proactive risk management.
• Scale your impact to our large user base and OSS community by contributing to documentation, guides, and other public content.
• Own strategic customer relationships (portfolio ownership)
• Be the primary technical partner for 10–20 strategic accounts.
• Run onboarding, success planning, and regular deep dives into the customer’s AI architecture and workflows.
• Drive adoption of key product capabilities across the lifecycle.
• Lead customers through production readiness: instrumentation strategy, data modeling choices, evaluation setup, alerting/monitoring expectations, security & privacy considerations, and operational playbooks.
• Provide pragmatic architecture guidance for real LLM systems.
• Build small prototypes, reference implementations, and demos when it unblocks a customer.
• Own the technical leadership during high-severity customer moments: triage, root-cause coordination, and crisp communication.
• Aggregate patterns across your portfolio and translate them into actionable product feedback.

Senior Forward Deployed Engineer

• Understand how customers use Langfuse
• Build and maintain our data stack (Posthog, BigQuery, DBT, Metabase) to generate insights into user behavior
• Map our core funnel for each feature and make it easy to monitor (we are using posthog for this)
• Make our product our #1 growth engine
• Ship constant improvements that reduce onboarding friction for users
• Build loops to help customer expand into all of our product areas
• Experiment with loops that make people tweet about langfuse

Product Engineer – Growth

Product Designer

• Own our product design end-to-end.
• Make data-dense interfaces intuitive.
• Simplify complex workflows.
• Collaborate directly with product engineers.
• Ship design straight to code.

Backend Engineer

• Own and optimize our ingestion pipeline
• Make ClickHouse fast
• Build new infrastructure-heavy features
• Test with real data in production
• Scale for what's next

Senior Backend Engineer

Technical Account Manager

• Make our best customers successful in production and expanding over time.
• Improve net revenue retention via adoption, outcomes, and proactive risk management.
• Scale your impact to our large user base and OSS community by contributing to documentation, guides, and other public content.
• Create a tight loop from “what customers do” (your deep understanding of top customers) → “what we should build” (feedback to the product engineering team) → “how the GTM org explains it.” (GTM enablement).
• Own strategic customer relationships (portfolio ownership) — Be the primary technical partner for 10–20 strategic accounts (large, highly engaged, or aligned with our roadmap).
• Run onboarding, success planning, and regular deep dives into the customer’s AI architecture and workflows.
• Drive adoption of key product capabilities across the lifecycle: initial setup, team workflows, scaling, and expansion.
• Lead customers through production readiness: instrumentation strategy, data modeling choices, evaluation setup, alerting/monitoring expectations, security & privacy considerations, and operational playbooks.
• Provide pragmatic architecture guidance for real LLM systems (agents, tool use, RAG, evals, prompt iteration, dataset curation, feedback loops).
• Build small prototypes, reference implementations, and demos when it unblocks a customer. Turn them into reusable templates that can be published.
• Own the technical leadership during high-severity customer moments: triage, root-cause coordination, and crisp communication.
• Be the point of contact for the customer and partner closely with Engineering, be proactive in how you resolve issues.
• Establish escalation paths, runbooks, and prevention mechanisms for repeat issues.
• Aggregate patterns across your portfolio and translate them into actionable product feedback (clear problem statements, impact, and recommended solutions).
• Create customer-facing assets (docs, guides, best practices, demos) that start as one customer’s question and become durable collateral.
• Enable the broader ClickHouse GTM org: training, playbooks, crisp messaging, and “how to win” narratives for AI engineering teams.

Senior Technical Account Manager

• Owning our SDKs. We maintain SDKs in Python and TypeScript both built on OpenTelemetry. You'll be responsible for their reliability, performance, and developer experience.
• Designing APIs that developers love. Developer experience is a core differentiator for Langfuse and you'll own every detail of it.
• Integrating with every major AI framework: Langfuse integrates with 40+ frameworks and model providers and you'll maintain these integrations.
• Maintaining our OpenTelemetry endpoint: you'll ensure this path is robust, well-documented, and supports the full range of Langfuse features.
• Writing public documentation: you'll own the SDK docs, integration guides, and migration paths.

Senior Software Engineer, SDK

Frontend Engineer

• Build performant rendering for large LLM data
• Own our React setup
• Build complex interactive features
• Own UI/UX across the product
• Ship features end-to-end