Senior AI Engineer – Agentic AI
American Express11 hours ago
Westminster, United KingdomSenior
Responsibilities
- Design, build, and ship LLM-powered and agentic product features for financial customers.
- Build agentic systems that reason over context, invoke tools, take real actions, and recover from failures.
- Architect and implement production-grade RAG pipelines over sensitive financial data with strong correctness, auditability, and safety requirements.
- Contribute to shared AI infrastructure, including LLM services, agent orchestration frameworks, and evaluation and monitoring tooling.
- Own production systems, including reliability, latency, cost, and failure modes.
- Partner with product and design teams to deliver customer-focused solutions and outcomes.
Requirements
- At least 5 years of software engineering experience, including meaningful production experience with LLMs or applied ML systems.
- A record of shipping AI-powered or agentic systems used by real users.
- Strong fundamentals in backend systems, APIs, data pipelines, and cloud infrastructure.
- Hands-on experience with modern LLM tooling and agentic patterns and architectures.
- Fluency with AI-assisted and agentic development workflows.
- Strong ownership, technical judgment, product mindset, and customer orientation.
- Preferred: experience building agentic systems in fintech or other regulated industries.
- Preferred: founding-engineer or early technical contributor experience in high-growth environments.
- Preferred: experience shipping complex systems in regulated contexts and meaningful open-source contributions, particularly in AI or developer tooling.
Benefits
- Competitive base salaries and bonus incentives.
- Financial-well-being and retirement support.
- Medical, dental, vision, life insurance, and disability benefits, depending on location.
- Flexible hybrid, onsite, or virtual working arrangements depending on the role and business need.
- Generous paid parental leave, depending on location.
- Access to onsite wellness centers and confidential counseling through the Healthy Minds program.
- Career development and training opportunities.
- Employment is subject to successful completion of a background verification check.
- The role requires UK employment eligibility, and the company will not pursue visa sponsorship for these positions.
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About American Express
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.