American Express

Staff AI Engineer - Global Infrastructure

American Express
Apply
1 day ago

Base Salary

$144k - $256k/yr

Responsibilities

  • Serve as a senior technical authority for enterprise-scale AI systems with significant strategic and long-term business impact.
  • Define architecture and engineering patterns for agentic AI, retrieval and grounding, model integration, inference platforms, observability, evaluation, and safety.
  • Resolve complex technical challenges while balancing performance, cost, scalability, security, safety, and regulatory constraints.
  • Shape long-term AI engineering strategy across platforms, tools, and system design approaches.
  • Guide multiple cross-team AI initiatives and align architecture and integration across domains.
  • Lead technical and architectural reviews and establish engineering standards.
  • Partner with Product, Data Engineering, Cloud Infrastructure, Architecture, Risk, and Cybersecurity leaders on enterprise AI priorities and governance.
  • Evaluate emerging AI technologies and translate them into scalable enterprise capabilities.
  • Mentor Staff and Senior Engineers and develop future technical leaders.

Requirements

  • 12+ years of experience in AI/ML engineering, AI infrastructure, platform engineering, data engineering, or related fields.
  • Deep knowledge of machine learning and deep learning systems, including model architectures, training, evaluation, and optimization.
  • Advanced knowledge of Generative AI and LLM ecosystems, including embeddings, fine-tuning, prompt design, retrieval-augmented generation, and inference at scale.
  • Strong understanding of GPU platforms, accelerated compute, workload scheduling, capacity optimization, model serving, and inference performance.
  • Strong foundation in distributed systems, cloud-native architecture, Kubernetes, APIs, microservices, event-driven design, observability, and platform reliability.
  • Knowledge of DevOps and CI/CD platforms such as Harness.
  • Experience architecting end-to-end AI/ML platforms across data pipelines, training, deployment, serving, monitoring, and inference optimization.
  • Experience designing and operating GPU-based AI infrastructure and Kubernetes-based platforms for training, batch workloads, inference, orchestration, observability, reliability, and cost efficiency.
  • Hands-on experience with Python and AI/ML frameworks including PyTorch, TensorFlow, Scikit-learn, and Hugging Face.
  • Deep experience with agentic AI systems, including planning, tool use, memory, evaluation, retrieval, embeddings, vector databases, and agent frameworks.
  • Experience leading complex cross-functional technical initiatives and influencing architecture without direct authority.
  • Demonstrated ability to mentor and develop engineers at all levels, including Staff-level engineers.
  • Experience in regulated environments such as financial services, including AI governance, risk management, and compliance considerations.
  • Advanced understanding of agentic AI design, including planning, reasoning, tool use, memory, multi-agent coordination, and autonomy controls.
  • MS or PhD in Artificial Intelligence, Machine Learning, Computer Science, or a related discipline is preferred.

Benefits

  • Competitive base salaries and bonus incentives.
  • 6% company match on the retirement savings plan.
  • 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 role and business need.
  • 20+ weeks of paid parental leave for all parents.
  • Access to onsite wellness centers and confidential counseling support through the Healthy Minds program.
  • Career development and training opportunities.

Tech Stack

HarnessKubernetesPythonPyTorchscikit-learnTensorFlow
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.

Contact me