LangChain

Engineering Manager to lead the team building LangSmith, an observability and evaluation platform for LLM applications. Responsibilities include defining technical direction, mentoring engineers, and partnering with product/design to deliver features for trustworthy AI systems. Requires experience managing teams, strong technical background in Go/Python/Typescript, and understanding of data-intensive systems.

LangChain is seeking a Senior Backend Software Engineer to build the backend systems for their AI observability and evals platform (LangSmith). The role involves designing, developing, and maintaining backend services and APIs for tracing, monitoring, and evaluation workflows, optimizing data storage and query performance, ensuring system reliability, and troubleshooting production issues. Experience with high-throughput systems, database systems, and cloud platforms is required.

LangChain is seeking a Fullstack Engineer to develop features for LangSmith, their AI observability and evals platform. The role involves working across the Go, Python, and Typescript stack, collaborating with product and design teams, and driving project timelines with high engineering standards. Experience with AI/LLM-powered applications or observability platforms is a plus.

Senior Fullstack Engineer for LangSmith, an observability and evals platform for AI agents. The role involves leading technical architecture, implementing features across Go, Python, and Typescript, collaborating with product/design, mentoring junior engineers, and ensuring high engineering standards. Requires 5+ years of fullstack experience with Go/Python and React/Typescript, strong database knowledge (Postgres, Redis), and API design/scaling experience. Experience with AI/LLM applications, developer tools, or observability platforms is a bonus. The role is in-person 5 days/week in San Francisco.