Senior Data Scientist

Senior Marketing Science Specialist – AI-Enabled Analytics

📍 London, UK (Hybrid)

💰 £60,000 – £80,000 + package (depending on experience)

❗ Sponsorship is not available for this role

The Data Gals have been retained by a leading global marketing and performance agency to hire a Senior Marketing Science Specialist to join their growing analytics and measurement function.

This is a newly created, high-impact role offering significant autonomy and direct exposure to senior leadership. It is a hands-on MMM role with a strong emphasis on building and prototyping new approaches to measurement using AI.

You will join a large, established analytics team (≈40 people) while working closely with the Chief Data Officer, supporting proof-of-concept development and experimentation.

Your work will directly influence how multi-million-pound media budgets are allocated and optimised across global clients.

This role is ideal for someone who enjoys building, testing ideas quickly and pushing beyond a traditional modelling remit.

The Role

MMM Modelling & Measurement

• Build, run and interpret Marketing Mix Models (MMM) to understand drivers of marketing performance
• Apply statistical modelling to deliver robust insights into channel effectiveness
• Translate modelling outputs into clear, actionable insights for internal stakeholders

Incrementality Testing & Measurement Innovation

• Support the development of automated incrementality testing frameworks across programmatic platforms
• Contribute to building a centralised database of testing insights
• Work with modern approaches to measurement and experimentation

AI-Enabled Analytics & Prototyping

• Apply AI and generative techniques to accelerate model development and automate insight generation
• Prototype new measurement approaches using modern tools and workflows
• Support the development of proof-of-concept analytics products alongside the CDO

Data Products & Internal Tools

• Develop lightweight tools, dashboards, and interfaces that allow teams to interact with model outputs and scenarios
• Contribute to new measurement products and internal analytics capabilities
• Explore how AI can enhance modelling pipelines and decision-making

What We're Looking For

• 5+ years’ experience working with Marketing Mix Modelling (MMM)
• Strong statistical and econometric modelling expertise
• Hands-on experience with Python and data analysis workflows
• Exposure to Bayesian modelling approaches
• Experience with data visualisation tools (Plotly, Dash or similar)
• Familiarity with cloud environments (e.g. AWS)
• Curiosity and practical experience using AI tools to enhance analytical workflows

Mindset & Attributes

This role suits someone who is:

• Curious and experimental – enjoys exploring new approaches
• Comfortable working independently with autonomy
• Interested in combining MMM expertise with AI-driven innovation
• A strong communicator, able to clearly explain complex modelling outputs
• Motivated by building and testing new ideas, tools, and prototypes

Apply today or send your CV to kat@thedatagals.co.uk