Company Name: LangChain

Job Details: 3,Locations,In-Office,or,Remote,160K-180K,Annually,Senior,level

Job Url: https://builtin.com/job/ai-engineer/8064361

Job Description: About the RoleWe'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 DoAgent 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 integrationDeployment & 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 LangSmithCustomer 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 ForRequired Experience5+ 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 agentsStrong experience with LLM frameworks (langchain/langgraph, or similar) for building agent-based applicationsStrong 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 testingExperience with vector stores, RAG patterns, and knowledge organizationExperience with MCP/tool integration, API design, and error handling patternsStrong Python and/or TypeScript development skills with production-grade code qualityInfrastructure & Cloud:Understanding of cloud platforms (GCP, AWS, or Azure) and common servicesKnowledge of containerization and container orchestration conceptsUnderstanding of CI/CD concepts and experience integrating applications into CI/CD pipelinesUnderstanding of networking, security (authentication, authorization), and observability conceptsAbility to collaborate with infrastructure teams on deployment requirementsCustomer-Facing:Customer-facing experience with enterprise customers (preferred)Experience conducting technical assessments or code reviewsStrong communication skills with ability to explain technical concepts to diverse audiencesStrong problem-solving skills with ability to analyze complex requirements and design elegant agent solutionsConsultative approach with ability to understand customer needs, provide recommendations, and guide implementationLocation: SF or NY Preferred. US Remote OkCompensation: $160K - $180KWe offer competitive compensation that includes base salary, meaningful equity, and benefits such as health and dental coverage, flexible vacation, a 401(k) plan, and life insurance. Actual compensation will vary based on role, level, and location.