Sales Engineer (Bay Area)

About Us

At LangChain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale.

With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we’re at a stage where we’re continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together. LangChain is a place where your contributions can shape how this technology shows up in the real world.

Today, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. We have 100M+ monthly open source downloads, 6,000+ active LangSmith customers, and 5 of the Fortune 10 use LangSmith in production (+ 35% of the Fortune 500 overall), including teams at Klarna, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, LinkedIn, Monday.com, Nvidia, and Bridgewater.

About the Team

This team works directly with companies building and running AI agents in production, helping turn ideas and prototypes into systems teams can rely on.

This is a hands-on, highly technical team that partners closely with customer engineers across the full lifecycle, from pre-sales evaluations to post-deployment advisory work. The focus is on achieving the technical win, co-designing agent architectures, and helping customers operate agents reliably at scale using the LangChain suite.

Sales Engineers sit at the intersection of

engineering, product, and go-to-market

, shaping how LangChain is adopted in the field and feeding real-world insights back into the platform.

About the Role

You'll work on some of the hardest problems in applied AI alongside customers. This is not demos or research, but helping teams build systems they rely on in production. The feedback loop is fast, the impact is visible, and your work directly shapes how AI agents are built in the real world.

What You’ll 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 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

What You’ll Bring

3+ years

in a relevant technical role (software engineering, customer engineering, solutions engineering, founding/product engineering), ideally in a

startup or scale-up

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

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’s:

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

Compensation

Annual OTE range: $185,000–$315,000 USD

Compensation Philosophy:

We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks.

We are hiring for this role across a range of scope, and the compensation band reflects that. Your offer depends on what we learn about your impact, craft, leadership, and communication during the interview process. We will tell you early where you’re tracking and talk comp with you before offer stage. Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations.

Benefits

Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more.