American Express

Sr AI Engineer I - Enterprise Architecture

American Express
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22 hours ago
Phoenix, AZ, USASenior
H1B sponsor

Base Salary

$123k - $215k/yr

Responsibilities

  • Design, build, and ship LLM-powered and agentic product features for financial customers.
  • Build agentic systems that reason over context, invoke tools, take real actions, and recover from failures.
  • Architect and implement production-grade RAG pipelines over sensitive financial data.
  • Contribute to shared AI infrastructure, including LLM services, agent orchestration frameworks, and evaluation and monitoring tooling.
  • Own production systems, including their reliability, latency, cost, and failure modes.
  • Collaborate with product and design partners with a focus on customer outcomes.

Requirements

  • 5+ years of software engineering experience, including meaningful production experience with LLMs or applied ML systems.
  • Track record of shipping AI-powered or agentic systems that real users depend on.
  • Strong fundamentals in backend systems, APIs, data pipelines, and cloud infrastructure.
  • Hands-on experience with modern LLM tooling and agentic patterns and architectures.
  • Fluency with AI-assisted and agentic development workflows.
  • Strong ownership, technical judgment, product mindset, and customer orientation.
  • Preferred: experience building agentic systems in fintech or other regulated industries.
  • Preferred: experience as a founding engineer or early technical contributor in high-growth environments.
  • Preferred: experience shipping technically complex systems in regulated contexts and meaningful open-source contributions in AI or developer tooling.

Benefits

  • Competitive base salaries and bonus incentives.
  • 6% company match on the retirement savings plan.
  • Financial coaching and financial well-being support.
  • Comprehensive medical, dental, vision, life insurance, and disability benefits.
  • Flexible working model with hybrid, onsite, or virtual arrangements depending on role and business need.
  • 20+ weeks of paid parental leave for all parents.
  • Access to global onsite wellness centers, counseling through the Healthy Minds program, and career development and training opportunities.
American Express

About American Express

10,000+ employees

American Express builds a global payments network and issues consumer, small-business, and corporate cards, plus merchant acquiring and travel services. Revenue comes from card fees, interest and lending, discount/merchant fees, and network services. Founded in 1850 and headquartered in New York City, it operates the Amex acceptance network worldwide and offers co-branded cards and membership rewards across millions of cardmembers and merchants; ticker NYSE: AXP.

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