Senior Data Scientist - MMM

Harnham - Data & Analytics RecruitmentBirmingham, London, Manchester, Sheffieldreedpublished 10/19/2026
Must-have:PythonDataAISeniorRemote

Senior Data Scientist - Marketing Mix Modelling (MMM) | £70,000-£90,000 | Fully Remote UK

We're looking for a commercially minded Senior Data Scientist to join a fast-growing, purpose-led travel marketplace.

This is a high-impact role focused on Marketing Mix Modelling (MMM), incrementality and marketing effectiveness, helping the business optimise investment as it plans to significantly increase marketing spend next year.

Key responsibilities:

  • Own and develop MMM to measure channel effectiveness, diminishing returns and marginal acquisition costs.
  • Design incrementality experiments, including geo tests and conversion-lift studies.
  • Build and enhance Customer Lifetime Value (LTV) models.
  • Improve marketing attribution and measurement in a privacy-first landscape.
  • Translate analytical insights into actionable marketing budget recommendations.
  • Use AI to accelerate analysis, experimentation and reporting.

What we're looking for:

  • Strong hands-on experience in MMM and marketing measurement.
  • Excellent statistical, causal inference and experimental design skills.
  • Strong SQL and Python capabilities.
  • Understanding of paid media, attribution and customer acquisition economics.
  • Commercially minded, with the ability to influence marketing strategy.
  • An AI-first approach to data science.

Experience with Bayesian modelling, value-based bidding or LTV modelling would be advantageous.

Package: £70,000-£90,000 + bonus and benefits

Location: Fully remote within the UK.

An excellent opportunity to shape marketing investment strategy and drive profitable, sustainable growth.

Interested? Get in touch for a confidential conversation.