Senior Backend Engineer, Observability & Evals Platform
LangChainSan Francisco, California, United States • New York, New York, United States
Posted September 23, 2025
155000 - 195000 USD year
Full Time
About the Company
LangChain is a platform for building reliable agents, offering tools like LangGraph for orchestration and LangSmith for evaluation. With hundreds of integrations, it empowers engineering teams to develop, deploy, and manage enterprise-grade agents efficiently.
Job Description
LangChain is seeking a Backend Engineer to join their LangSmith team, focusing on the observability and evals platform. The role involves designing, building, and maintaining backend systems that support monitoring, evaluation, and performance for AI applications at scale. Familiarity with fullstack or frontend engineering is a plus.
Requirements
- 5+ years of professional experience in backend engineering
- Proficiency in one or more backend languages/frameworks, ideally Python or Go
- Strong understanding of API design and building reliable data services
- Experience with high-throughput or mission-critical systems
- Demonstrated ability to optimize backend services for performance and reliability
- Experience with database systems (Postgres, Redis, Clickhouse), and cloud platforms (AWS, GCP, Azure)
- Strong communication skills
Benefits
- Competitive salary
- Equity
- Benefits package
