Staff Data Scientist – AI, Fraud & Automation (Hybrid)

Company: Marshmallow
Apply for the Staff Data Scientist – AI, Fraud & Automation (Hybrid)
Location: London
Job Description:

Marshmallow, a rapidly growing financial services company, is hiring a Staff Data Scientist to lead data science efforts across Claims. You will build production ML and Generative AI systems, shape risk-based decisioning, and partner with Product and Engineering to deliver measurable impact in claims handling.

You’ll mentor other data scientists, drive architectural improvements, and advocate for robust, scalable technical solutions.

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Posted: November 1st, 2026