American Express

Sr AI Engineer II - Global Commercial Services Technology

American Express$130K — $155K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 6+ years experience in large-scale backend or distributed systems.
  • Proven track record of shipping LLM-powered features to users, with insights on troubleshooting failures.
  • Proficient in TypeScript or Go, with flexibility to work in both languages.
  • Strong understanding of distributed systems principles, including queues and event-driven design.
  • Ability to discern decision-making roles of LLM versus traditional code.
  • Experience leading design initiatives across teams.
  • Excellent cross-functional communication skills.

Responsibilities

  • Lead technical design of new agent capabilities from concept to deployment.
  • Build and operate end-to-end services, integrating LLM reasoning with data persistence.
  • Enhance the agent framework focusing on orchestration and observability.
  • Design and optimize RAG and embedding pipelines for vector search functionality.
  • Create evaluations for new agent behaviors and manage updates based on evaluations.
  • Ensure reliability of features through failure classification and safe rollout practices.
  • Mentor and set standards for design and code reviews, supporting junior engineers.
  • Assess and integrate emerging AI models and techniques into the existing platform.

Benefits

  • Work in a collaborative, hands-on tech environment with a focus on innovation.
  • Exposure to cutting-edge technologies in AI and machine learning.
  • Opportunity to lead projects and influence direction within small teams.
  • Develop expertise in a versatile tech stack including TypeScript, Go, and AWS infrastructure.
  • Engage in mentorship and knowledge-sharing with fellow engineers.
Full Job Description
Job Description

Senior AI Engineer II - Agentic AI, Global Commercial Services
The Role

As a Senior AI Engineer II - Agentic AI, you will be a hands-on engineer within Amex Technology, building and evolving production-grade agentic AI systems that power intelligent customer and enterprise experiences. Today that means agents that work in real time to take the tedious part of spend management off our business customers. They read messy real-world documents, work out what belongs in the record, and propose values that already fit the customer's policy, so the user reviews instead of types. Working closely with architects, Product, UX, Data Science, and Engineering teams, you will design, implement, and operate scalable, reliable, and secure AI solutions. You'll work in a small team that owns the full stack of an AI product, from the agent framework and pipelines to the evals and the production service, and you'll drive the direction of major pieces of it.

Responsibilities

What You'll Do
  • Lead the technical design of new agent capabilities, from ambiguous product intent to shipped system.
  • Build and operate those services end to end, from event trigger through LLM reasoning to persisted, surfaced results.
  • Extend and shape our shared agent framework: orchestration, tool use, structured generation, and observability.
  • Design and tune RAG and embedding pipelines on the vector search built into our operational database.
  • Design evals for new agent behaviors and gate prompt changes on them.
  • Own reliability: failure classification, idempotency, DLQ handling, and rollout safety for AI features in production.
  • Set the standard in design review and code review, and mentor engineers ramping onto the AI stack.
  • Evaluate emerging models and techniques, and fold the ones that earn their keep into the platform.
The Stack

AI platform
  • TypeScript
  • In-house agent framework on the Vercel AI SDK and Effect
  • Embeddings and vector search in our operational database
  • Offline eval harness in Go; live-traffic evals in Datadog

Services and infrastructure
  • TypeScript and Go services
  • gRPC and tRPC APIs
  • Event-driven pipelines on Kafka, SQS, and Lambda
  • EKS on AWS, feature-flagged rollouts, infrastructure as code


Qualifications

What We're Looking For
  • 6+ years building large-scale backend or distributed systems in production.
  • Shipped LLM-powered features to real users, and can talk concretely about what broke and how you found out.
  • Strong TypeScript or Go, and comfort working across both.
  • Strong distributed-systems instincts: queues, event-driven design, failure modes, idempotency.
  • Judgment about what an LLM should decide versus what code should decide.
  • A track record of driving designs across a team.
  • Clear communication across engineering, product, and design.
Nice to Have
  • Contributions to open-source projects, especially AI, developer-tooling, or infrastructure libraries.
  • Experience building developer tooling, internal platforms, or frameworks other engineers build on.
  • Experience designing LLM evals or operating LLM observability at scale.
  • Experience with durable execution or workflow orchestration engines such as Temporal.
  • AI features shipped in financial services or another regulated industry.
  • Vector search or embedding pipelines in production.

About American Express

Amex provides industrial services to the coatings and linings sector, providing support for commercial, industrial, and maritime projects such as petrochemical, power, and water treatment industries. They offer painting services for steel structures, storage tank linings and coatings, pipelines, floors, and marine vessels such as ships, tugboats, and barges.

American Express Careers

Join the vibrant team at American Express, a global leader in financial services, and be part of a company that values innovation, leadership, and diversity. At American Express, we offer more than just job opportunities; we provide a platform for professional growth and a chance to be part of a culture that is committed to excellence and inclusive growth. Work You’ll Do At American Express, we are dedicated to helping our employees reach their full potential. With a variety of career paths available in areas such as technology, marketing, finance, and customer service, American Express is the perfect place to advance your career. Our team is composed of highly skilled professionals who thrive on innovation and collaboration. Join our team and contribute to a company known for its prestigious history of leadership in the credit card industry. Engage in meaningful work that makes a real impact on our global scale business operations. American Express Leadership and Development Programs We believe in nurturing the leadership skills of our employees with extensive training programs and leadership development opportunities. Our commitment to professional growth is evident in our comprehensive benefits package that supports both personal and professional development. Internship Opportunities Start your career with an internship at American Express and gain valuable industry experience. Our internships offer a chance to develop skills, work on challenging projects, and learn from leaders in the industry. Interns at American Express are considered integral members of the team and are given responsibilities that provide a real insight into their future career paths. Diversity and Inclusion At American Express, diversity and inclusion are at the core of our company culture. We are committed to building a diverse workforce and inclusive environment where every employee feels valued and inspired. We offer diversity training programs that empower our employees to thrive and lead in a global marketplace. Networking and Innovation Our employees enjoy unparalleled opportunities for networking and personal growth through our global connections and innovative projects. American Express encourages a culture of innovation that helps propel our company and your career forward. Career Benefits and Growth American Express is dedicated to the growth of its employees. We offer competitive benefits, including health, retirement plans, and family leave, ensuring that our team members have the support they need to succeed both at work and in their personal lives. Join Our Team Explore the job opportunities and open positions at American Express. We are continuously hiring talented individuals who are passionate about their careers and interested in working for a company that offers a dynamic and supportive environment. Stay Connected Keep up to date with the latest from American Express Careers by following our career blog and signing up for job alert emails. Tailor your subscription to receive updates that match your skills and interests. Discover the exciting and rewarding career opportunities that await at American Express. SEARCH AMERICAN EXPRESS JOBS Whether you are looking for a full-time position, an internship, or a leadership opportunity, American Express offers a path to a rewarding career. Join us and make a difference with your passion, creativity, and drive.
Learn more about American Express
Size
64,000 employees
Market Cap
$108.1 billion
Industry
Net Income
$3.1 billion
Founded
1850
5 Year Trend
+3.5%
Revenue
$37 billion
NASDAQ

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