American Express

AI Engineer II - Enterprise Architecture

American Express
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7 hours ago
Phoenix, AZ, USAMid Level
H1B sponsor

Base Salary

$89k - $150k/yr

Responsibilities

  • Contribute to the design and implementation of LLM-powered and agentic product features.
  • Build and extend agentic AI workflows that reason over context, call tools, and perform actions.
  • Implement and maintain retrieval-augmented generation pipelines over financial data with emphasis on correctness and safety.
  • Contribute to shared AI infrastructure, including LLM services, orchestration components, and evaluation or monitoring tooling.
  • Monitor, debug, and improve the reliability and performance of AI systems in production.
  • Collaborate with product and design partners to translate customer needs into technical solutions.
  • Use AI-assisted and agentic development tools for design, implementation, testing, debugging, and refactoring while maintaining production-quality standards.

Requirements

  • At least 2 years of professional software engineering experience.
  • Some hands-on experience building or contributing to AI-powered features, LLM-based applications, or applied ML systems through professional or project-based work.
  • 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.
  • Ability to work collaboratively with cross-functional teams and maintain a strong customer mindset.
  • Preferred: exposure to LLM tooling, prompt engineering, RAG, or agent frameworks through work, coursework, or personal projects.
  • Preferred: internship or early-career experience in fintech or other regulated environments.
  • Preferred: contributions to open-source projects, hackathons, or AI- or developer-tooling-related side projects.

Benefits

  • Competitive base salaries and bonus incentives.
  • 6% company match on the retirement savings plan.
  • Free financial coaching and financial well-being support.
  • Medical, dental, vision, life insurance, and disability benefits.
  • Flexible working model with hybrid, onsite, or virtual arrangements depending on the role and business need.
  • 20+ weeks of paid parental leave for all parents for pregnancy, adoption, or surrogacy.
  • Access to global onsite wellness centers staffed with nurses and doctors, depending on location.
  • Free confidential counseling through the Healthy Minds program.
  • 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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