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Lead AI Engineer II - American Express

Company: American Express

Location: toronto, London

Posted: June 04, 2026

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Position Details

Empower financial innovation with American Express as a Lead AI Engineer II, crafting LLM-enhanced systems for improved customer experiences in a dynamic environment.

Your mission is to collaborate on building state-of-the-art agentic AI systems that redefine how customers manage finances. This position requires a hands-on approach, focusing on the development, deployment, and maintenance of complex AI solutions alongside product and design teams. You will ensure that solutions meet regulatory standards for safety and performance.

Key Responsibilities: • Develop LLM-powered features impacting finance management • Engineer agentic systems that perform real actions • Implement secure and compliant RAG pipelines • Support shared AI tools and infrastructure • Oversee all aspects of systems in production

Requirements: • 8+ years of software engineering, especially with LLMs • Experience in delivering AI-powered systems • Strong fundamentals in backend, APIs, and c...