Marketing Data Scientist

Your new companyA leading consultancy is seeking a Senior MMM/Marketing Effectiveness expert to join their growing London team. Operating across major international markets, the organisation partners with major brands to deliver data-driven marketing effectiveness, customer analytics, and AI-powered decisioning. With strong values, a collaborative culture, and a reputation for innovation, this is an excellent opportunity to step into a high-impact role within a well-established, mission-driven environment.

Your new roleAs a Senior Data Scientist specialising in Marketing Mix Modelling and Marketing Effectiveness, you will lead the delivery of end-to-end marketing effectiveness programmes for global clients across various sectors.

Key responsibilities:

• Own full MMM project cycles - from data strategy and modelling to insights, activation, and client recommendations.
• Apply econometrics, regression, Bayesian methods, and machine learning to large, complex datasets.
• Produce dashboards, decisioning tools, and visual analytics using internal frameworks.
• Translate technical outputs into clear, strategic recommendations for senior stakeholders and C-suite decision makers.
• Act as day-to-day contact for clients, supporting workshops, presentations, and commercial conversations.

What you'll need to succeed

• 3+ years' experience in marketing effectiveness (MMM), advanced analytics, or data science.
• Strong technical capability in Python, R, SQL; experience with cloud platforms (Azure, Databricks) beneficial.
• Solid grounding in econometrics, regression modelling, Bayesian approaches, or advanced statistical techniques.
• Proven experience turning analytical outputs into actionable commercial insights.
• Confident communicator with strong client-facing skills and the ability to lead multiple workstreams simultaneously.
• A collaborative mindset with a passion for coaching and developing junior team members.

What you need to do nowIf you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

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