American Express
AI Engineer III
Phoenix, AZ +1 · Hybrid · Full-time · Posted Jun 29, 2026
- Location
- Phoenix, AZ
New York, NY - Experience
- 4+ years of professional software engineering experience.
- Visa sponsorship
- Employment eligibility to work with American Express in the United States is required; the company will not pursue visa sponsorship for these positions.
About the job
Build and operate production LLM-powered and agentic AI features for financial data and customer-facing workflows.
What you'll do
- Develop agentic workflows and RAG pipelines, including systems that reason over context, call tools, and perform actions.
- Contribute to shared AI infrastructure, orchestration, evaluation, and monitoring tools.
- Monitor, debug, and improve production AI systems in collaboration with engineering, product, and design teams.
What they ask for
- Hands-on experience building or contributing to AI-powered features, LLM applications, or applied ML systems.
- 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 and AI-assisted development; willingness to learn and collaborate.
Nice to have
- Exposure to LLM tooling, prompt engineering, RAG, or agent frameworks.
- Experience in fintech or another regulated environment, or AI-related open-source, hackathon, or side projects.
Pay
$103750 - $174750 annually (base salary)
Tools
Python, Go, TypeScript, AWS, GCP, Kubernetes, REST, gRPC
AI focus
Develop and operate agentic AI systems, LLM-powered features, and RAG pipelines for financial data, with emphasis on safety, reliability, security, and auditability.
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