AI/ML Engineer – Production LLM Systems (London, 3 days)

Harnham is seeking an AI/ML Engineer in London’s King’s Cross (hybrid, three days on site) to help design, build and operate production-grade AI systems solving real-world problems.

You will work on agentic AI, retrieval systems and enterprise-scale LLM applications, influencing technology decisions, product direction, and mentoring engineers to raise the bar across the library and lifecycle. This is a fast-growing, well-funded AI business valuing ownership and technical excellence.

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