AI Engineer III

American Express is seeking an AI Engineer III in Phoenix, AZ (onsite) to help build agentic AI platforms and capabilities that can be used responsibly and at scale across the enterprise. This role supports intelligent, adaptive systems for autonomous workflows, decision support, and customer-facing experiences, with attention to security, explainability, reliability, and compliance.

The salary range for this position is USD 103,750 - 174,750 per year. If you enjoy combining backend engineering strength with applied AI development, this is an opportunity to take meaningful technical ownership while working closely with cross-functional partners.

Responsibilities

• Design and build agentic AI platforms and capabilities that support autonomous workflows and decision support.
• Contribute to AI systems used in customer-facing experiences with security, explainability, reliability, and compliance requirements.
• Create intelligent, adaptive systems that operate at scale across the enterprise.

Requirements

• 4+ years of professional software engineering experience.
• Hands-on experience building or contributing to AI-powered features, LLM-based applications, or applied ML systems (professional or project-based).
• Solid engineering fundamentals in at least one backend language: Python, Go, or TypeScript.
• Familiarity with APIs, basic cloud concepts, and modern development practices.
• Interest in agentic AI systems, autonomy, and AI-assisted development workflows.
• Willingness to learn, take feedback, and grow technical ownership over time.
• Comfort collaborating in cross-functional teams.
• A strong customer mindset and curiosity about solving real-world problems.

Preferred Qualifications

• Exposure to LLM tooling, prompt engineering, RAG, or agent frameworks through work, coursework, or personal projects.
• Internship or early-career experience in fintech or other regulated environments.
• Contributions to open-source projects, hackathons, or side projects related to AI or developer tooling.
• Employment eligibility to work with American Express in the United States is required; the company will not pursue visa sponsorship for these positions.

Technologies

Python, Go, TypeScript