Principal Data Scientist

Marshmallow · London · All 12 Marshmallow jobs

No pay statedHybridPermanent

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Checker · last seen live 05 Nov 2026
Still open
Work pattern
Hybrid
Employment
Permanent
Level
Lead
Posted
09 Sep 2026
Age
30+ days old (since 9 Sep)
Repeat
Reposted before
Source
Employer's own page, Ashby
Advertised pay
Not stated
Some employers keep roles open on purpose

Half of recent data scientist adverts in London state £60,000 to £112,500 a year. The middle is £72,000.

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Required skills

  • Data Science
  • Communication Skills
  • Machine Learning
  • A/B testing
  • LLMs
  • Stakeholder Management

Nice to have

  • Leadership
  • Mental Health
  • Learning And Development

About the job

We’re on a mission to make migration easy. We started building Marshmallow in 2017. Since then, we’ve grown from 3 to 700+ people, gained unicorn status, raised ~£140M over three funding rounds, turned profitable, insured millions of drivers and lent millions in car loans. But we’re only just getting started. Our goal is to become one of the largest financial services providers in the world.

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Source: Marshmallow's careers site

Adverts belong to the employers' own sites.