Lead AI Engineer

Company: Harnham
Apply for the Lead AI Engineer
Location: London
Job Description:

Lead AI Engineer

London (Hybrid, 1 to 2 days per week)

Company

They are a leading UK consumer-focused financial services business with a broad product portfolio and millions of customers. Operating at scale, they are investing heavily in AI to enhance customer experience, drive efficiency, and strengthen risk and fraud capabilities. A new generative AI team is being built to sit within a broader AI and MLOps function, moving from contractor-led delivery to a permanent, strategically aligned capability. This is a high-visibility area with strong internal demand and clear executive backing.

Role

You will lead the design and delivery of AI solutions that directly impact core operations and customer journeys.

  • Own end-to-end delivery of AI systems, from problem definition through to production
  • Design and deploy LLM and RAG-based solutions, including chat assistants for customer support and contact centre optimisation
  • Drive automation across complaints handling, triage, fraud detection, and customer data workflows
  • Define architecture and make decisions around build versus buy solutions
  • Work closely with engineering, product, and risk teams to ensure compliant and scalable solutions
  • Implement robust MLOps practices including monitoring, evaluation, and system reliability

Your Skills & Experience

  • Strong commercial experience delivering production-grade AI systems end to end
  • Deep expertise in generative AI, including LLMs, RAG, and agent-based systems
  • Solid software engineering background with experience in scalable system design and APIs
  • Hands‑on experience with MLOps, including deployment, monitoring, and lifecycle management
  • Proven ability to lead multiple AI initiatives and deliver measurable business outcomes
  • Experience working in large, complex organisations with high data volumes

What They Offer

  • Competitive pension and benefits package
  • Hybrid working with flexibility
  • Opportunity to shape a new AI capability within a large organisation
  • Clear progression as the AI function scales

    How to Apply

    If you are interested in leading AI innovation in a high-impact, enterprise environment, apply now to find out more.

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Posted: July 9th, 2026