Senior Data Scientist - MMM

Harnham - Data and Analytics Recruitment
London, United Kingdom
Yesterday
£80,000 – £90,000 pa

Salary

£80,000 – £90,000 pa

Seniority
Senior
Posted
19 Oct 2026 (Yesterday)

Senior Data Scientist, Marketing

Remote (UK) | £70,000 - £90,000

An exciting opportunity to join a fast-growing, data-driven business where marketing measurement sits at the heart of commercial decision-making. This role offers the chance to own advanced modelling initiatives, influence budget allocation, and shape how marketing performance is measured across the organisation.

The Company

They are a digitally-focused consumer business operating at scale, with a strong commitment to data-led decision making. Their collaborative culture empowers employees to take ownership of high-impact projects and influence business strategy. With a modern data stack and a growing analytics function, they offer an environment where experimentation and innovation are actively encouraged.

The Role

  • Own and develop the organisation's Marketing Mix Modelling (MMM) framework using modern modelling techniques.
  • Deliver actionable insights on marketing effectiveness, media performance, and budget allocation.
  • Design and evaluate incrementality testing programmes, including lift studies and geo-based experiments.
  • Partner with Marketing teams to improve attribution, measurement, and channel performance.
  • Build and maintain Lifetime Value (LTV) models to support acquisition and retention strategies.
  • Apply statistical and causal inference techniques to identify growth opportunities and optimise investment decisions.
  • Translate complex modelling outputs into clear recommendations for stakeholders.

Your Skills & Experience

  • Strong commercial experience in Marketing Mix Modelling, marketing measurement, or advanced marketing analytics.
  • Excellent understanding of experimentation, incrementality testing, and causal inference methodologies.
  • Strong statistical knowledge, including hypothesis testing, regression analysis, and experimental design.
  • Advanced SQL skills and experience working with Python for analytics and modelling.
  • Experience using modern data platforms and cloud-based analytics environments.
  • Ability to communicate technical findings effectively to non-technical stakeholders.
  • Comfortable working in a fast-paced environment with a high degree of ownership.

What They Offer

  • Salary of £70,000 - £90,000 depending on experience.
  • Annual performance-related bonus.
  • Flexible working and fully remote UK-based working arrangements.
  • Private healthcare and enhanced pension contribution.
  • Generous annual leave allowance.
  • Opportunities to work on complex data science challenges with direct commercial impact.
  • Clear scope for professional growth and progression within a growing data team.

How to Apply

If you're a Senior Data Scientist with expertise in marketing measurement, MMM, and experimentation, apply today to learn more about this opportunity.

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