Jobs at LangChain

Build and own LangChain’s React component library and design system. Develop accessible, reusable UI components; translate design tokens and interaction patterns into code; create tooling for theming, versioning, testing, visual regression, and component discovery; and optimize build performance, bundling, dependency management, and package versioning. Collaborate closely with designers, product engineers, and platform teams to maintain a consistent, high-quality frontend foundation.

As a Backend Engineer, you will design and build backend systems and APIs for LangChain's observability and evals platform, optimizing performance and reliability while collaborating with cross-functional teams.

Own the full enterprise software sales cycle from lead generation through close. Build trusted relationships with technical decision-makers, lead proof-of-concept efforts, communicate product value, negotiate pricing and contracts, and support post-sale success. Collaborate with engineering, product, customer success, deployment, and legal teams while contributing customer insights and helping develop LangChain’s sales playbook and go-to-market strategy.

Develop and enhance user-facing features for an LLM observability platform using React and TypeScript. Build reusable components and front-end libraries, translate designs into performant UI code, optimize cross-device/browser performance, and collaborate with backend engineers and designers to improve usability.

Build and enhance LangSmith frontend features: implement user-facing UI with React and TypeScript, create reusable components, translate designs into high-quality code, optimize performance, and collaborate with backend engineers and designers to improve observability and evaluation workflows for LLM applications.

The Deployed Engineer will co-architect and build production AI agents, manage technical evaluations, and support customers with deployments and best practices.

The Renewals Account Manager will oversee customer renewals and expansions, ensuring satisfaction and retention through relationship-building and managing renewal processes.

The Product Manager will own the roadmap for LangSmith, working with customers and engineers to build features that enhance the observability and deployment of AI systems. The role requires a technical background and experience in product management.

The Senior Fullstack Engineer will build foundational product features and integrations to drive user acquisition, optimization, and monetization at LangChain, collaborating with various teams for growth.

Lead the technical architecture and implementation for LangSmith, collaborating with teams, mentoring juniors, and ensuring code quality.

Maintain and improve the LangChain Python package, enhance documentation, assist users, and build example applications.

The Full Stack Engineer will develop and implement features for the LangSmith platform, collaborate with teams, ensure high coding standards, and engage with enterprise customers.

The Principal Software Engineer will lead architectural decisions, mentor engineers, optimize system performance and reliability, and drive technical direction for LangChain's observability and evaluations platform.

Lead account-based marketing for Strategic accounts: define ICPs, build 1:1 and 1:few omni-channel campaigns, align with sales, run events, measure pipeline and ROI, and influence cross-functional priorities to accelerate high-value pipeline.

Own and govern the end-to-end marketing tech stack and campaign operations: roadmap, integrations, tracking, tag management, data flows, and reporting. Build AI-powered automations and operational tooling, ensure data hygiene, and support ABM and PLG initiatives through signal and workflow design.