Senior Data Scientist (AdTech/eCommerce)

Location London
Discipline: Technology
Salary: £105k to £115k basic + bens
Contact name: Dan Butterworth

Contact email: dan@principlehr.com
Job ref: 3721
Published: 5 days ago
  • Role: Senior Data Scientist (AdTech / eCommerce) - Global Media Tech
  • Location: Fully remote within the London / South East UK regions
  • Salary: £105k to £115k basic + benefits (PAYE, paid weekly, within IR35)
  • Contract: 6 months – to start ASAP (max 4 weeks notice)

You must be fully clear to work in the UK without visa / relocation requirements

Data Scientist – Ads & E-commerce Personalisation 
We are looking for an experienced Data Scientist to join a high-growth team focused on Shops Ads personalisation. This role is central to optimising ad ranking, buyer journeys, and product recommendations within a large-scale e-commerce ecosystem.

Key Responsibilities:
  • Analyse buyer behaviour, experimental results, and data trends to drive ad personalisation and optimisation.
  • Work closely with product, engineering, and leadership teams to align data insights with strategic goals.
  • Conduct A/B testing, experimental deep dives, and opportunity sizing analysis to improve ad performance.
  • Develop data-driven recommendations to enhance user experience and revenue growth.
  • Summarise insights for senior stakeholders and contribute to long-term product strategy.

What You’ll Need:
  • 8+ years in Data Science, with a background in ads, e-commerce, or personalisation - essential; without this you cannot be considered
  • Strong expertise in SQL, Python, and A/B testing.
  • Experience working with ad ranking, product recommendations, or user behaviour analysis.
  • Proven ability to communicate insights and influence product strategy.
  • Background in fast-scaling environments (Big Tech, high-growth startups, or similar).

Nice to Have:
  • Experience in Machine Learning and personalisation algorithms.
  • Dashboarding and data visualisation for leadership reporting.
  • This is an opportunity to work at the forefront of ads and e-commerce innovation, shaping the future of personalised online shopping.

Interested? Apply now.