American Express
Sr AI Engineer II - Global Commercial Services Technology
United States · Remote · Senior · Full-time · Posted Sep 22, 2026
- Experience
- 6+ years building large-scale backend or distributed systems in production.
About the job
Builds and operates production-grade agentic AI systems for business spend management, while shaping shared AI platform capabilities and engineering standards.
What you'll do
- Lead the design, implementation, and operation of agent capabilities and services from product intent through production.
- Extend agent orchestration, RAG and embedding pipelines, evaluation, observability, and reliability practices.
- Guide technical reviews, mentor engineers, and evaluate emerging models and techniques for platform use.
What they ask for
- 6+ years building large-scale backend or distributed systems in production.
- Shipped LLM-powered features to real users.
- Strong TypeScript or Go skills and comfort working across both.
- Distributed-systems expertise, including queues, event-driven design, failure modes, and idempotency.
Nice to have
- Open-source contributions or experience building developer tooling, internal platforms, or frameworks.
- Experience with LLM evaluation or observability, workflow orchestration, regulated industries, or production vector search and embedding pipelines.
Pay
$123000 - $215250 annually (base salary)
Tools
TypeScript, Go, Vercel AI SDK, Effect, Datadog, gRPC, tRPC, Kafka
AI focus
Build and operate agentic AI for spend management; develop agent frameworks, RAG and embedding pipelines, evaluations, observability, and production guardrails.
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