Langfuse - Senior Backend Engineer (US-East)

📋 Description

• Own and optimize the ingestion pipeline: work on throughput, latency, reliability, and cost
• Make ClickHouse fast: design schemas, optimize merge strategies, tune batch inserts, write and
• Build new infrastructure-heavy features: LLM-as-a-Judge, alerting at scale, client-code execution
• Test with real data in production: run load tests against production data to validate schema
• Scale for what's next: think ahead about what breaks at 10x scale, including complex long-running

🎯 Requirements

• Strong backend engineer excited about database internals, query optimization, and distributed
• You get excited when working with a ton of data
• Experience with analytical databases, data pipelines, or high-throughput event processing
• Self-organized with strong opinions about what to build and how to ship it
• Comfortable reading and writing TypeScript (our backend) and SQL
• Interest in open source software and genuine enjoyment talking to users about their scaling

🎁 Benefits

• Flexible work environment - globally distributed and remote-friendly, operating in over 25 countries
• Healthcare - Employer contributions towards your healthcare
• Equity in the company - Every new team member receives stock options
• Time off - Flexible time off in the US, generous entitlement in other countries
• A USD$500 Home office setup if you’re a remote employee
• Global Gatherings – Opportunities for in-person connection at company-wide offsites