Senior Data Scientist - Marketing

Harnham; United Kingdom; Remote; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Performance-related bonus

Fully remote working across the UK

Private healthcare and pension

Enhanced annual leave

Opportunity to influence business

Job summary

Harnham is looking for a high-impact Senior Data Scientist to join a growing consumer-focused business investing heavily in marketing and data. You will help the organisation understand what drives customer acquisition and where marketing spend delivers the greatest return.

You will lead marketing measurement and experimentation, partnering with marketing stakeholders to improve performance and budget allocation.

Qualifications

• Strong experience with Marketing Mix Models (MMM) and incrementality testing.
• Excellent statistical and experimental design knowledge.
• Advanced SQL and Python skills.
• Experience with Snowflake and dbt.
• Understanding of attribution, paid media measurement and privacy challenges.
• Ability to translate complex analysis into commercial recommendations.

Responsibilities

• Develop Marketing Mix Models (MMM).
• Design and analyse incrementality and geo-based tests.
• Improve attribution and marketing measurement frameworks.
• Build and maintain Customer Lifetime Value (LTV) models.
• Deliver actionable insights to non-technical stakeholders.
• Use AI and automation to improve analytical efficiency.

Skills

Marketing MMM

Incrementality testing

Causal inference

Statistical design

SQL

Python

Attribution & paid media

Stakeholder communication

Tools

Snowflake

dbt

Job description

This is a high-impact Senior Data Scientist opportunity within a growing consumer-focused business investing heavily in marketing and data. You'll play a key role in helping the organisation understand what drives customer acquisition and where marketing spend generates the greatest return.

The Company

They are a fast-growing digital business with a strong data-driven culture and ambitious growth plans. Data and experimentation sit at the centre of commercial decision-making, giving this role visibility and influence across the organisation.

The Role

You will lead marketing measurement and experimentation, partnering closely with marketing stakeholders to improve performance and budget allocation.

Key responsibilities include:

• Developing and enhancing Marketing Mix Models (MMM)


• Designing and analysing incrementality and geo-based tests


• Improving attribution and marketing measurement frameworks


• Building and maintaining Customer Lifetime Value (LTV) models


• Delivering actionable insights to non-technical stakeholders


• Using AI and automation to improve analytical efficiency

Your Skills & Experience

• Strong experience in MMM, incrementality testing or causal inference


• Excellent statistical and experimental design knowledge


• Advanced SQL and Python skills


• Experience with modern analytics platforms such as Snowflake and dbt


• Understanding of attribution, paid media measurement and privacy challenges


• Ability to translate complex analysis into commercial recommendations

What They Offer

• Performance-related bonus


• Fully remote working across the UK


• Private healthcare and pension


• Enhanced annual leave


• Strong opportunity to influence business strategy and growth