American Express
Sr AI Engineer II - Agentic AI
Phoenix, AZ · Hybrid · Senior · Full-time · Posted Aug 28, 2026
- Experience
- 8+ years of software engineering experience, including meaningful production experience with LLMs or applied ML systems.
- Visa sponsorship
- American Express may provide visa sponsorship for certain positions, depending on factors such as business unit requirements, the nature of the position, cost, and applicable laws.
About the job
Build and operate production-grade agentic AI systems and LLM-powered customer features for financial workflows, with responsibility for reliability, safety, and ongoing performance.
What you'll do
- Design, build, and ship LLM-powered and agentic product features and financial workflow automation.
- Build RAG pipelines and shared AI infrastructure, including orchestration, evaluation, and monitoring tools.
- Own production systems and partner with product and design teams to deliver customer outcomes.
What they ask for
- 8+ years of software engineering experience, including meaningful production experience with LLMs or applied ML systems.
- Track record of shipping AI-powered or agentic systems used by real users.
- Strong engineering fundamentals across backend systems, APIs, data pipelines, and cloud infrastructure.
- Hands-on experience with modern LLM tooling and agentic patterns and architectures.
Nice to have
- Experience building agentic systems in fintech or other regulated industries.
- Meaningful open-source contributions, particularly in AI or developer tooling.
Pay
$123000 - $215250 annually (base salary)
Tools
Python, Go, TypeScript, AWS, GCP, Kubernetes, REST, gRPC
AI focus
Develop production agentic AI systems, LLM-powered customer features, financial workflow automation, RAG pipelines, and shared AI infrastructure; use AI-assisted and agentic development workflows.
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