Staff Data Scientist at Marshmallow, London

Looking for data scientist jobs in London with visa sponsorship? Marshmallow is hiring a Staff Data Scientist for its Claims team.

Staff Data Scientist Jobs in London: Overview

About the Employer

Marshmallow is a UK insurtech and fintech company founded in 2017 that provides car insurance and related financial products aimed at making migration easier for newcomers. It has grown to over 700 people and holds unicorn status.

Job Responsibilities

• Provide technical leadership for data science across Claims Fraud and claims automation
• Design, build and iterate on production ML and Generative AI systems for claims validation
• Shape the approach to risk decisioning and fraud detection in partnership with Product and Engineering
• Bring system-level thinking to how decisioning scales
• Challenge proposals to ensure robust, sustainable solutions

Requirements

• Significant commercial experience delivering end-to-end Machine Learning solutions from problem framing to production monitoring
• Hands-on experience building and shipping Generative AI systems in production, including evaluation and integration
• Strong statistical and modelling foundation with experience in risk-based decisioning
• Ability to influence technical direction across teams

Visa Sponsorship and International Applicants

Marshmallow states it is able to offer visa sponsorship for this position. International applicants are welcome. Sponsorship is confirmed in the available job information.

Salary and Benefits

• Bonus scheme designed to reward high performance
• Private medical insurance with Vitality and mental health support
• Personal learning budget and dedicated L&D days
• Monthly flexible benefits budget
• 25 days holiday plus bank holidays
• 4 weeks Work From Anywhere per year

How to Apply

Applications are handled through Ashby. Submit a CV and any required materials via the company portal.

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