Senior AI Engineer

Simpson Thacher & Bartlett LLP is seeking a Senior AI Engineer to design, build, and operationalize enterprise-scale Generative AI solutions, agents, and AI-powered applications. The role involves developing scalable AI systems leveraging Large Language Models (LLMs), retrieval-augmented generation (RAG), and agentic workflows to automate complex business processes. This position requires close collaboration with business stakeholders, software engineers, and data teams to translate high-value AI opportunities into production-ready solutions.