Fullstack Software Engineer, Applied AI

About this role

LangChain is seeking a Fullstack Applied AI Engineer to design and deploy production-grade AI agents and workflows across the company's operations and open-source ecosystem. You'll work at the frontier of agent engineering, collaborating with cross-functional teams to build autonomous systems that accelerate LangChain's mission while contributing to widely-used frameworks like LangChain and LangGraph.

What you'll do

• Design and deploy end-to-end AI workflows and agents solving real problems across multiple business domains
• Develop agent architectures, evaluation pipelines, and performance frameworks to ensure reliability
• Translate emerging AI research into practical, production-ready solutions
• Collaborate with cross-functional teams (Marketing, GTM, Recruiting, Product) to identify automation opportunities
• Contribute to LangChain and LangGraph ecosystem including open source components and documentation
• Communicate technical decisions and trade-offs to technical and non-technical stakeholders

What they're looking for

• Python or TypeScript (ideally both)
• LLM systems and production AI applications
• Evaluation and monitoring systems for agents
• Prompting, retrieval, orchestration, and model selection
• Agent architecture and workflow design
• Clear technical communication
• Fast-paced startup problem-solving
• Curiosity about emerging AI tools and frameworks

Benefits

• Work at the frontier of agent engineering and AI research
• Contribute to widely-adopted open-source projects (100M+ monthly downloads)
• Meaningful impact on company direction and product development
• 5-day in-office work in San Francisco or New York (hybrid eligibility based on location)
• Opportunity to ship production systems used by Fortune 500 companies