Senior Data Scientist

Company: The Data Gals | by AI Connect
Apply for the Senior Data Scientist
Location: Greater London
Job Description:

Senior Marketing Science Specialist – AI-Enabled Analytics

❗ 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

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Posted: March 25th, 2026