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Sr AI Engineer I

American Express
Phoenix, USA
Full-time
Mid-Senior
Onsite
Discovered 3 weeks ago
Agentic AILarge language models (LLMs)PythonGoTypeScriptAWS

Full Job Posting

Role overview

Build production-grade agentic systems using real financial data for customer-facing features, financial workflows, and internal AI capabilities.

Work end to end from solution design and implementation through post-launch ownership in a regulated financial environment.

The role emphasizes practical engineering and production delivery, not research alone.

Responsibilities

  • Design and ship LLM-powered and agentic product features for customer financial management.
  • Build agents that reason over context, invoke tools, take actions, and recover from failures.
  • Develop production RAG pipelines over sensitive financial data with correctness, auditability, and safety controls.
  • Contribute to shared LLM services, orchestration frameworks, and AI evaluation and monitoring tools.
  • Own production reliability, latency, cost, and failure modes.
  • Partner with product and design teams and deliver toward customer outcomes.

Qualifications

  • At least 6 years of software engineering experience, including production experience with LLMs or applied ML.
  • Track record shipping AI-powered or agentic systems used by real users.
  • Strong backend, API, data-pipeline, and cloud-infrastructure fundamentals.
  • Hands-on experience with LLM tooling and agentic patterns and architectures.
  • Fluency with AI-assisted and agentic development workflows.
  • Strong ownership, technical judgment, ability to navigate ambiguity, and a customer-oriented product mindset.

Technical environment

  • Languages include Python, Go, and TypeScript; cloud and infrastructure include AWS and/or GCP and Kubernetes.
  • APIs and services include REST and gRPC; distributed systems include event-driven architectures such as Kafka.
  • AI environment includes commercial and open-source LLMs, orchestration, RAG, vector storage, evaluation, and schema, validation, and state management practices.
  • Use AI-assisted development tools for design, implementation, testing, debugging, and refactoring while maintaining production-quality standards.
  • Systems are expected to meet high reliability, security, and auditability standards.

Preferred qualifications

  • Experience building agentic systems in fintech or other regulated industries is preferred.
  • Founding-engineer or early technical-contributor experience in a high-growth environment is preferred.
  • Experience delivering complex regulated systems relied on by customers and meaningful open-source AI or developer-tooling contributions are preferred.

Work arrangement

  • The company offers hybrid, onsite, or virtual work arrangements depending on role and business need; this posting does not specify the arrangement for this role.

Benefits

  • Benefits may include competitive salary and bonus incentives, retirement matching, financial coaching, health and insurance coverage, parental leave, wellness support, and career development.

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