Senior Data Scientist, MMM

As a Senior Data Scientist, you will own the organisation’s marketing measurement capability and help shape how acquisition budgets are allocated.

Specifically, you can expect to be involved in the following:

• Owning and developing the Marketing Mix Modelling (MMM) framework to evaluate channel performance, saturation points, and marginal acquisition costs
• Designing and measuring incrementality experiments including conversion lift studies, holdout testing, and geo-based experiments
• Improving marketing attribution and conversion signal quality in an evolving privacy landscape
• Building and owning Customer Lifetime Value (LTV) models to support bidding strategies, forecasting, and long-term growth decisions
• Translating complex statistical outputs into commercially actionable recommendations for marketing stakeholders
• Working closely with performance marketing teams to optimise budget allocation and acquisition efficiency
• Using AI-powered tools and workflows to accelerate analysis, experimentation, and insight generation
• Contributing to experimentation standards and best practices across the wider data function

The successful Senior Data Scientist will have the following skills and experience:

• Strong commercial experience in Marketing Mix Modelling, incrementality testing, geo experiments, or marketing measurement
• Excellent statistical knowledge including causal inference, hypothesis testing, regression analysis, power calculations, and experimental design
• Advanced SQL and Python skills for analysis and modelling
• Experience working with modern data platforms such as Snowflake, dbt, and cloud-based analytics environments
• Understanding of digital marketing, attribution methodologies, paid media platforms, and privacy-related measurement challenges
• Ability to communicate complex findings clearly to both technical and non-technical audiences
• Experience building or supporting Customer Lifetime Value modelling is highly desirable
• Confidence leveraging AI tools as part of a modern analytics workflow

The successful Senior Data Scientist will receive the following benefits:

• Salary between £70,000 - £90,000 - depending on experience
• Fully remote working within the UK
• 38 days annual leave including public holidays

They are a fast-growing online marketplace operating within the travel and experiences sector, connecting customers with unique experiences through a network of independent partners. The business has built a strong brand, operates with a purpose-led mindset, and combines commercial growth with a commitment to supporting local communities and sustainable business practices. Their data team is lean, highly collaborative, and empowers individuals to own meaningful work. You will have direct exposure to senior stakeholders and the opportunity to influence business decisions through data science, experimentation, and modelling.