Production AI Agent Engineer — Early Career (NYC)

LangChain; New York (NY); On-site; USD 155,000 - 165,000; Full time

Benefits offered by this job

Medical benefits

401(k) plan

Office meals

Flexible vacation

Job summary

LangChain is seeking a Sales Engineer to work with customers on building and deploying production AI agents. You will co-architect agents, lead pre-sales technical wins, and guide customers through multi-step workflows and complex evaluations.

Join a hands-on, highly technical team that partners with customer engineers across the full lifecycle, from pre-sales to post-deployment advisory work. Expect 40% travel to client sites to support deployments and ongoing engagements.

Qualifications

• 3+ 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 beyond simple API calls, 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

Responsibilities

• 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 such as conversational agents, research agents, and multi-step workflows
• 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 that scale across customers
• Occasionally contribute code upstream when it meaningfully improves customer outcomes
• This role requires 40% travel to customer sites to support deployment, onboarding, and ongoing technical engagement

Skills

Python

JavaScript

Systems fundamentals

Agent-based apps

POC design

Customer engagement

Technical storytelling

Action oriented

Tools

LangChain

Job description

LangChain is seeking a Sales Engineer to work with customers on building and deploying production AI agents. You will co-architect agents, lead pre-sales technical wins, and guide customers through multi-step workflows and complex evaluations.

Join a hands-on, highly technical team that partners with customer engineers across the full lifecycle, from pre-sales to post-deployment advisory work. Expect 40% travel to client sites to support deployments and ongoing engagements.