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Senior Data Scientist and Marketing Effectiveness (MMM)

Ekimetrics· London – Data Science & AI
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Hybrid (London)£60k - £75kPermanent positionPosted 3mo ago

About the role

Senior Analyst specialising in Data Science & Marketing Effectiveness leading MMM programmes for international clients, with team leadership, client management, and growth responsibilities.

Responsibilities

  • Lead end-to-end MMM and marketing effectiveness programs for international clients, from data strategy and collection to modelling, insights, and activation.
  • Apply econometrics, regression, Bayesian statistics, and machine learning methods to analyse marketing and customer data
  • Collaborate with Managers to define project scope, analytical approaches, and ensure timely delivery.
  • Build dashboards and visualization tools to communicate actionable insights using proprietary frameworks.
  • Translate complex analytics into clear business-oriented recommendations for senior stakeholders and C-suite clients.
  • Support clients in optimising marketing spend, understanding campaign performance, improving customer segmentation, and maximising ROI.
  • Serve as day-to-day operational contact for clients, building trust and identifying growth opportunities.
  • Present findings and recommendations in client-facing workshops and executive presentations.
  • Collaborate to develop proposals for new or expanded work aligned with commercial offerings.
  • Lead teams of 3–10 across multiple projects, ensuring quality, satisfaction, and profitability.
  • Mentor and develop junior team members; contribute to knowledge management.
  • Identify opportunities for account growth and contribute to development with clients.
  • Act as ambassador of Eki culture and support transversal initiatives.
  • Champion core values: Curiosity, Creativity, Excellence, Transmission, Pleasure.

Qualifications

  • Strong 3–4 years’ experience in marketing effectiveness/MMM and analytics/data science
  • Bachelor’s or master’s degree in Statistics, Econometrics, Data Science, Economics, Applied Mathematics, Marketing Analytics, or related field.
  • Strong proficiency in Python, R, SQL, or similar tools.
  • Experience with Databricks, Azure, or other cloud/data platforms is a plus.
  • Solid understanding of econometrics, regression analysis, Bayesian statistics, or other advanced modelling techniques.
  • Experience translating data and model outputs into actionable business recommendations.
  • Comfortable handling large datasets, optimizing data pipelines, and delivering high-quality outputs

Skills

Required:MMM and marketing effectivenessEconometricsPythonSQLData visualization
Nice to have:R

Benefits

  • Salary £60,000-£75,000 + Bonus 10% + Corporate bonus
  • Regular events and seminars
  • Modern office space in a central London location
  • Flexible hybrid working policy (2 days in office + 20 days remote)
  • 25 days annual leave + bank holidays, plus 3 days for tenure
  • Private healthcare, life insurance, wellbeing support
  • Group pension scheme
  • Opportunities for international mobility and career development
Last updated Oct 21, 2026. Interested? Apply on the company site.

About Ekimetrics

AI Business Solutions – Ekimetrics

Ekimetrics provides AI business solutions, enhancing business operations and driving efficiency through data and AI solutions.

AIBusiness SolutionsData AnalyticsMarketing & Commercial EffectivenessCustomer AnalyticsOperational ExcellenceAI for Sustainability
Company profileWebsite

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