Lead Agent Engineer (LangChain) at Focused

Focused is hiring a Lead Agent Engineer (LangChain) in Chicago. You build production-ready AI systems with LangChain and large language models. You lead teams across full-stack delivery, from backend services to web interfaces. You pair-program daily with teammates and clients, practice test-driven development and continuous refactoring, and guide architectural choices for scalability and observability. You mentor developers, shape technical direction across teams, and experiment with emerging generative AI patterns.

Requirements:

Hands-on full-stack engineering with a collaborative, agile delivery track record

Practical experience with LangChain (or similar agentic frameworks) and the ability to architect AI-native systems responsibly and effectively

Deep expertise with LangChain, LangGraph, and LangSmith

Engineering team leadership and mentoring capabilities

Proficiency across multiple languages and frameworks (Python, Node, Java, React, Next.js)

Strong cross-functional collaboration skills

Ability to translate technical concepts for non-technical stakeholders

Work model: 3 days/week in the Chicago office (Tue-Thu) plus up to 20% US travel.
Compensation: $175,000 - $250,000.
Visa sponsorship is not available; US work authorization without sponsorship is required.