Data Scientist - Experimentation & Ads Analytics

Principle • london, england, United-Kingdom • Posted June 20, 2026

Location london, england
Job Type Full-time
Category Other
Posted June 20, 2026

Want to work on data problems at a global scale?

We're hiring a Senior Data Scientist to help improve how digital advertising performance is measured and optimised across one of the world's largest consumer platforms.

You’ll analyse massive datasets, design A/B experiments, and work closely with product and engineering teams to turn insights into real product improvements.

The Offer

  • Annual Salary up to £105,000 doe and location (pro‑ra)
  • Contract Length: approx ~3 months – inside IR35 – PAYE – Paid weekly via PrincipleHR
  • Paternity Cover
  • Location: Remote within the UK (candidates considered are to be physically based in the UK and have the appropriate work permit, no sponsorship)

What you’ll work on

  • Measuring and improving ad performance
  • Designing and analysing A/B experiments
  • Identifying insights from large‑scale datasets
  • Influencing product a...

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