Post Job Free
Sign in

AI Engineer

Company:
LangChain, Inc
Location:
San Francisco, CA
Posted:
January 09, 2026
Apply

Description:

About the Role

We're looking for an AI Engineer to join our Professional Services team. You'll work directly with enterprise customers to design, build, and optimize production-grade AI agent systems. This role combines software development, AI/ML expertise, and customer-facing skills, you'll work on everything from multi-agent system design to evaluation framework implementation, requiring deep technical expertise in agent engineering with understanding of cloud infrastructure and deployment patterns.

You'll join a collaborative team environment with a strong engineering culture, with direct impact on customer success and the opportunity to shape best practices while working with cutting-edge AI technology.

What You'll Do

Agent Engineering & Development: Design multi-agent systems with Subagents/Handoffs/Router patterns, implement agent logic using langchain/langgraph, design comprehensive evaluation frameworks, optimize prompts with A/B testing, implement state management (short-term and long-term memory), and design RAG patterns with vector store integration

Deployment & Operations: Guide customers on agent deployment and configuration management, integrate agents into CI/CD pipelines, collaborate with Solution Architects on infrastructure requirements, and set up observability using LangSmith

Customer Engagement & Assessment: Lead agent engineering maturity assessments, work directly with enterprise customers to understand requirements and present recommendations, and partner with Solution Architects, Engagement Managers, and Product/Engineering teamsWhat We're Looking For

Required Experience

5+ years of experience in software development with 2+ years focused on AI/ML applications or agents. Customer-facing experience is preferred. We also like former founders, so if you have an unusual background, but all the right skillsets, you are welcome to apply.

Agent Engineering & Development:

2+ years of experience building production AI/ML applications or agents

Strong experience with LLM frameworks (langchain/langgraph, or similar) for building agent-based applications

Strong experience with state management (short-term and long-term memory)

Experience designing and implementing evaluation frameworks for AI applications (LLM-as-judge, deterministic evaluators)

Strong prompt engineering skills with experience in optimization, externalization, and A/B testing

Experience with vector stores, RAG patterns, and knowledge organization

Experience with MCP/tool integration, API design, and error handling patterns

Strong Python and/or TypeScript development skills with production-grade code quality

Infrastructure & Cloud:

Understanding of cloud platforms (GCP, AWS, or Azure) and common services

Knowledge of containerization and container orchestration concepts

Understanding of CI/CD concepts and experience integrating applications into CI/CD pipelines

Understanding of networking, security (authentication, authorization), and observability concepts

Ability to collaborate with infrastructure teams on deployment requirements

Customer-Facing:

Customer-facing experience with enterprise customers (preferred)

Experience conducting technical assessments or code reviews

Strong communication skills with ability to explain technical concepts to diverse audiences

Strong problem-solving skills with ability to analyze complex requirements and design elegant agent solutions

Consultative approach with ability to understand customer needs, provide recommendations, and guide implementation

Location: SF or NY Preferred. US Remote Ok

Compensation: $160K - $180K

Benefits: Very competitive and comprehensive

Apply