Senior AI Product Engineer: Build Scalable LLM Apps

Company: Harnham – Data and Analytics Recruitment
Apply for the Senior AI Product Engineer: Build Scalable LLM Apps
Location: London
Job Description:

Harnham – Data and Analytics Recruitment is seeking a Senior AI Product Engineer to join London on a hybrid basis. You will be the first senior engineering hire, owning end-to-end AI product development and scaling the RAG/AI app layer.

You will work across backend, APIs, and cloud infra, with frontend as needed, driving best practices in testing, architecture and delivery. Salary up to £140,000 depending on experience.

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Posted: September 8th, 2026