Senior Agentic AI Engineer

American Express; Phoenix (AZ); On-site; USD 140,000 - 190,000; Full time

Job summary

American Express Tech seeks a Senior AI Engineer I – Agentic AI to lead the design and delivery of production‑grade, agentic AI features in fintech contexts. You will work with product and design, translate ambiguous problems into shipped capabilities, and own end‑to‑end delivery from code to customer impact.

You will build with LLM tooling, ensure security and compliance, and influence architecture across backend services, data pipelines, and cloud infrastructure, driving reliable, scalable

Qualifications

• 5+ years of software engineering with ML
• Shipped AI-powered or agentic systems
• Strong fundamentals in backend, data pipelines, and cloud
• Experience with LLM tooling and agentic patterns
• Fluency in AI-assisted and agentic development workflows

Responsibilities

• Design and ship LLM-powered features
• Build agentic AI systems that reason over context
• Architect production-grade RAG pipelines over sensitive data
• Contribute to AI infrastructure, tools, and evaluation
• Own production systems reliability, latency, and cost
• Collaborate with product and design for customer outcomes

Skills

LLM experience

Agentic AI systems

Backend systems

Cloud infrastructure

Product mindset

Ownership

Ambiguity tolerance

Tools

React

TypeScript

CircleCI

iOS/Swift

Android

Job description

American Express Tech seeks a Senior AI Engineer I – Agentic AI to lead the design and delivery of production‑grade, agentic AI features in fintech contexts. You will work with product and design, translate ambiguous problems into shipped capabilities, and own end‑to‑end delivery from code to customer impact.

You will build with LLM tooling, ensure security and compliance, and influence architecture across backend services, data pipelines, and cloud infrastructure, driving reliable, scalable