Deployed Engineer (Seattle)

The role

You will co-architect and co-build production AI agents with customer engineering teams. You will own technical wins in pre-sales and advise customers post-sale on architecture and best practices.

What you will do

• Co-architect and co-build production AI agents with customer engineering teams
• Own the technical win in pre-sales by designing POCs, answering deep technical questions, and guiding evaluations
• Help customers deploy and operate agent-based applications
• Advise customers post-sale on architecture, best practices, and roadmap-level decisions
• Run technical demos, trainings, and workshops for developer audiences
• Surface field feedback and contribute reusable patterns, cookbooks, and example code
• Occasionally contribute code upstream

Required qualifications

• 5+ years in a relevant technical role (software engineering, customer engineering, solutions engineering, founding/product engineering)
• Strong Python, JavaScript and systems fundamentals
• Have designed agent-based or LLM-powered applications including multi-step workflows, orchestration, and failure handling
• Are comfortable working directly with customers during POCs, architecture reviews, and technical evaluations
• Can explain technical tradeoffs clearly and build trust with developer audiences
• Take responsibility for outcomes, not just recommendations
• Have a bias toward action and enjoy figuring things out as you go
• Are excited about operating AI agents in production, not just building demos

Nice to have

• You’ve deployed AI agents in production, especially using LangChain, LangGraph, or similar frameworks
• Worked with LLM evaluation, observability, or guardrails
• Have experience with cloud environments (AWS, GCP, Azure), containers, and basic Kubernetes concepts
• Have shipped and operated production software and are comfortable owning systems under real-world constraints

Benefits

• medical, dental, and vision coverage
• flexible vacation
• 401(k) plan
• meals on in-office days in the US
• meaningful equity

About the company

LangChain builds the foundation for agent engineering, helping developers move from prototypes to production-ready AI agents. The platform includes LangSmith and open-source frameworks like LangChain, LangGraph, and Deep Agents.