Senior Data Scientist and Marketing Effectiveness (MMM)

London, UK (Hybrid)

£60K/yr – £75K/yrSenior Level4+ years expFull time

Posted 2 weeks ago

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Job Summary

Own MMM and marketing effectiveness work for international clients, turning data into actionable guidance for executives and growth opportunities.

  • Own the analytics-to-activation loop across data strategy, modelling, and client-facing delivery.
  • Translate complex results into business recommendations for C-suite stakeholders and drive account growth.
  • Lead small to mid-size teams, manage client relationships, and ensure high-quality, timely outputs.

Job Description

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 closely with Managers to understand the project scope, structure, analytical approaches, manage operations and ensure timely delivery.
  • Build dashboards and visualisation tools to communicate actionable insights using proprietary Ekimetrics frameworks and best practices.
  • 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 the day-to-day operational contact for clients, building trustful relationships and proactively identifying growth opportunities.
  • Present findings, recommendations, and actionable insights in client-facing workshops and executive presentations.
  • Collaborate closely with managers and partners to develop proposals for new or expanded work, aligned with Ekimetrics’ commercial offerings.
  • Lead teams of 3–10 colleagues across multiple projects, ensuring high-quality delivery, client satisfaction, and profitability.

Requirements

  • 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

Benefits

  • Regular events and seminars to connect with colleagues
  • Modern office space in a central London location
  • Flexible hybrid working policy (2 days a week in office + 20 days’ work from anywhere, remotely)
  • 25 days annual leave + bank holidays, plus an additional 3 days for tenure
  • Private healthcare, life insurance, and wellbeing support
  • Group pension scheme
  • Opportunities for international mobility and career development
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Ekimetrics

4.0 Glassdoor

Ekimetrics transforms how organizations make critical business decisions. Through AI-powered Managed Solutions, we help companies build sustained competitive advantage. Our solutions combine the Eki.Decisions platform with embedded experts who bring 20 years of experience in marketing, commercial effectiveness, and data science, connecting decisions across business domains to drive scalable, lasting impact. With 500+ experts across three continents, Ekimetrics delivers measurable results through responsible and sustainable AI. Visit us at ekimetrics.com.

Founded in 2006
Paris, Île-de-France, FRA
523 employees (15 in marketing)
87% recommend to a friend
95% CEO approval

Traffic Signals

Monthly Visitors
18.3K
Traffic Source Mix
Search
71.8%
Direct
17%
Referral
4.6%
Social
1.3%
Paid
3.7%

Headcount Trend

Current headcount: ~523

Marketing Team

Marketing Team Size
15 (3% of company)
Marketing Roles Posted (Last 30 Days)
9

Funding

Total Funding
$28.6M
Last Raise
$28.6M
Series Unknown, 6 years ago

Funding History

  • Nov 2020
    Series Unknown • $28.6M
  • Nov 2016
    Seed

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