Principal Engineer — Cross‑Team AI/Data Architecture

9fin is seeking a Principal Engineer to own the toughest technical problems across AI, analytics, platform, and product engineering in London. You will set architectural standards and own foundational data and AI infrastructure.

You will work with Heads of Analytics, AI, Platform, and Product Engineering, raise the bar across teams, mentor senior engineers, and drive decisions that shape how the company scales its data and AI foundations.

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