Senior Backend Software Engineer, AI Observability & Evals Platform (SF)

Job Description

Design, build, and maintain backend services and APIs for LangSmith’s tracing, monitoring, and evaluation workflows, while improving performance and reliability for high-volume data. Troubleshoot production issues, document systems, and collaborate with engineering, product, and design teams to deliver features.

Requirements: Candidates need at least five years of backend engineering experience with complex products, proficiency in a backend language such as Python or Go, and experience building reliable APIs and high-throughput systems. They should also have database and cloud platform experience, a record of optimizing performance and reliability, and strong communication, customer focus, and ownership.

Key Skills: Backend Engineering, Python, Go, API Design, Reliable Data Services, High-Throughput Systems, Performance Optimization, PostgreSQL, Redis, ClickHouse, AWS, Google Cloud Platform, Microsoft Azure, Production Troubleshooting, Monitoring and Alerting, Cross-Functional Collaboration

Benefits: Medical Coverage, Dental Coverage, Vision Coverage, Flexible Vacation, 401(k), Meals On In-Office Days, Equity