LangChain

Build the backend systems powering LangSmith’s AI observability and evaluation platform, enabling developers to monitor and evaluate AI applications at scale. This senior role focuses on high-throughput services, data performance, reliability, and production debugging.

Join LangChain as a customer-facing Deployed Engineer helping companies turn LLM applications into production-ready systems. You will deliver technical demos, workshops, deployments, and ongoing engagement while partnering with sales and engineering teams.

Senior Fullstack Software Engineer building LangSmith’s AI observability and evaluation platform across Go, Python, and TypeScript. The role leads architecture and implementation, collaborates with product, design, and customers, and mentors engineers.

LangChain is hiring a Senior Frontend Engineer to build polished, high-performance features for LangSmith, its enterprise platform for LLM application observability, testing, and debugging. This onsite Boston role focuses on React and TypeScript development, reusable component libraries, and intuitive user experiences.

Join LangChain’s Professional Services team as a Deployed Engineer, helping enterprise customers design, build, evaluate, and deploy reliable production AI agents. The role combines hands-on agent engineering, technical advisory, and extended embedded delivery with customer engineering teams.

Senior Fullstack Engineer building LangSmith’s observability and evaluation platform for production AI agents. The role combines backend and frontend development with technical architecture and close collaboration with customers and product teams.

Build the backend systems powering LangSmith’s observability and evaluation platform for AI applications at scale. This Boston-based onsite role focuses on reliable, high-throughput services, APIs, storage optimization, and production troubleshooting.

Join LangChain’s Infrastructure team as a Software Engineer focused on developer productivity, test strategy, and quality across Kubernetes-based services, APIs, UI flows, and data systems. You’ll build reliable testing infrastructure and pioneer quality practices for LLM applications.