Senior AI Engineer – Agentic AI

Company: American Express
Apply on Partner’s Website
Location: London
Job Description:

Overview

In this role, you will build production-grade agentic AI systems that operate on real financial data, enabling autonomous workflows and decision support. You will shape end-to-end AI solutions with product and design partners, from conception to production and post-launch ownership. You’ll work on customer-facing LLM-powered features and internal AI capabilities within a regulated environment that emphasizes reliability, security, and auditability. This is a hands-on, impact-focused senior engineering position with a clear mission to scale responsible AI across the enterprise.

Responsibilities

  • Design, build, and ship LLM-powered and agentic product features for customer financial management
  • Develop agentic AI systems that reason over context, invoke tools, act, and recover from failures
  • Architect and implement production-grade RAG pipelines over sensitive financial data with strict auditability and safety
  • Contribute to shared AI infrastructure (LLM services, agent orchestration, evaluation/monitoring tools)
  • Own production systems, focusing on reliability, latency, cost, and failure modes
  • Collaborate with product and design to drive customer outcomes beyond mere technical execution

Key requirements

  • 5+ years of software engineering experience with production exposure to LLMs or applied ML
  • Proven track record of shipping AI-powered or agentic systems used by real users
  • Strong backend, data pipelines, and cloud infrastructure fundamentals
  • Hands-on with modern LLM tooling and agentic patterns/architectures
  • Fluency in AI-assisted and agentic development workflows
  • Strong ownership mindset and judgment; comfortable with ambiguity and shipping reliable products
  • Customer-oriented product mindset
  • ownership
  • customer focus
  • cross-functional collaboration
  • Python
  • Go
  • TypeScript

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Posted: October 17th, 2026