American Express
Sr AI Engineer I - Global Commercial Services
United States · Remote · Senior · Full-time · Posted Sep 22, 2026
- Experience
- 4+ years building backend or distributed systems in production.
About the job
Build and operate production agentic AI services for commercial spend management, including shared AI platform capabilities and customer-facing features.
What you'll do
- Build end-to-end agentic AI services, frameworks, RAG and embedding pipelines, and evaluation tools.
- Improve service reliability through failure handling, idempotency, and safe AI-feature rollouts.
- Participate in design reviews and code reviews, and help onboard engineers to the AI stack.
What they ask for
- 4+ years building backend or distributed systems in production.
- Shipped LLM-powered features and able to explain prompts, retrieval, output handling, and surrounding systems.
- Strong TypeScript or Go, with willingness to work across both.
- Solid distributed-systems fundamentals, including queues, event-driven design, and failure modes.
Nice to have
- Experience with internal platform tooling, LLM evaluations or observability, durable execution/workflow orchestration, or production vector search and embedding pipelines.
- Experience shipping AI features in financial services or another regulated industry.
Pay
USD 123000 - 215250 annually (base salary)
Tools
TypeScript, Go, Vercel AI SDK, Effect, Datadog, gRPC, tRPC, Kafka
AI focus
Develop agentic AI services and shared platform capabilities, including LLM orchestration, retrieval, structured generation, evaluations, observability, and guardrails.
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