LangChain's mission is to make intelligent agents ubiquitous, building the foundation for agent engineering in the real world.
Platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, Sandboxes), open source frameworks (LangChain, LangGraph, Deep Agents), and the LangSmith Engine.
$125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures.
100M+ monthly open source downloads, 6,000+ active LangSmith customers.
Responsibilities
Develop new user-facing features using React & TypeScript
Build reusable components and front-end libraries for future use
Translate designs and wireframes into high-quality code
Optimize components for maximum performance across a vast array of web-capable devices and browsers
Collaborate with fullstack and backend developers and UX/UI designers to enhance usability
Requirements
2+ years of Front-end engineering experience with strong proficiency in React, JavaScript and TypeScript
Hands-on experience with front-end development tools like Babel, Vite, Webpack, NPM, and Yarn
Familiarity with REST APIs and experience working closely with fullstack and backend engineers
Knowledge of modern authorization mechanisms, such as JWTs
Passion for user experience, design and building clean, engaging, and intuitive interfaces
Strong written and oral communication skills
Strong computer science fundamentals, ideally with a degree in computer science or related field
Conditions
Based in San Francisco, New York, or Boston office
Employees within commuting distance work from the office five days per week
Candidates outside commuting distance may be eligible for hybrid arrangements
Annual salary range: $160,000-$195,000 USD
Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more