Manager, Data science & Marketing Effectiveness (MMM)

LondonLondon – Data Science & AI /Permanent position /HybridManager, Data Science, MMM & Marketing Effectiveness – London, UK-Ekimetrics transforms how organisations make critical business decisions. Since 2006, we've been helping companies build sustained competitive advantage through AI-powered Managed Solutions. Our dual purpose is Competitiveness and Sustainability, because lasting leadership is built on both.

Our solutions are a unique combination of people and technology. We combine our Eki.

Decisions platform with embedded experts in marketing, commercial effectiveness, and data science, connecting decisions across business domains to drive real, positive, scalable, and lasting impact. With a full in-house team and offices in Paris, London, New York, Hong Kong, and Shanghai, we commit to responsibility and frugality in AI, systematically building competitive advantage, and being loyal to our values and DNA.

Your responsibilities

As a Manager in Marketing effectiveness, you will lead high-impact programmes for international clients across industries such as Luxury, Beauty, Retail, Consumer goods, Mobility and Financial Services. You will manage multiple teams and accounts, oversee end-to-end project delivery, and ensure actionable insights are delivered to clients while driving business growth and talent development.

More precisely, you will: Lead ProjectsOversee end-to-end Marketing Mix Modelling and Marketing effectiveness programmes, from scoping and data strategy through to modelling, insights, and activation.

Ensure robust project governance, including data quality, model validity, and actionable recommendations that drive client impact and business growth.

Translate complex analytical outputs into strategic narratives and clear actionable recommendations for senior stakeholders and C-suite clients.

Define, steer, and monitor project roadmaps using Ekimetrics' methodologies and standards, ensuring delivery aligns with client objectives, profitability targets, and timelines.

Provide strategic oversight to clients, helping them optimize marketing spend, enhance campaign performance, and improve customer segmentation and ROI.Support partners and senior managers in client engagement, delivering strategic insights, shaping proposals, and contributing to RFPs/pitchesContinuously identify and implement innovative approaches to solve client business challenges.

People & Project LeadershipLine manage multiple team members, overseeing performance, conducting regular 1:1s, performance reviews, and talent assessments, while ensuring high-quality delivery, profitability, and client satisfaction.

Lead talent development initiatives, including annual talent reviews and career development planning,Mentor project teams, guiding analytical workstreams, ensuring quality, and promoting knowledge sharing to develop team capabilities.

Contribute to project staffing strategy, balancing business priorities, expertise requirements, and team development opportunitiesRecruit, align, and develop resources to build high-performing teams, retaining top talent.

Encourage collaboration, communication, and knowledge sharing within squads, inspiring team engagement and continuous improvement.

Account & Business GrowthServe as the operational and strategic point of contact for key accounts, maintaining strong long-term client relationships.

Identify cross-sell and upsell opportunities and support global account growth strategies.

Contribute to the scoping and design of new projects, ensuring business cases align with Ekimetrics capabilities.

Track and animate realized client business gains from Ekimetrics partnership, drive a narrative of program value to account stakeholders.

Practice & Thought LeadershipEnhance MMM methodologies, automation, tooling, and internal assets to scale delivery excellence.

Contribute to thought leadership, knowledge management, and innovation initiatives.

Act as an ambassador of Eki culture role-modelling Ekimetrics' core values: Curiosity, Creativity, Excellence, Generosity, Enjoyment.

Your profile

Experience & Technical SkillsStrong experience in econometrics, MMM, or marketing effectiveness.

Bachelor's or master's degree in Statistics, Econometrics, Data Science, Economics, Applied Mathematics, Marketing Analytics, or related field.

Proficient in Python, SQL, Excel, and visualization tools; experience with Databricks, Azure, or other cloud/data platforms is a plus.

Strong understanding of econometrics, regression, Bayesian statistics, and advanced modelling techniques.

Skilled in handling large datasets, optimizing pipelines, and delivering high-quality outputsTrack record of translating complex model results into actionable business recommendations.

Fluent English is mandatory.

Client & People ManagementProven ability to lead multiple project teams and manage priorities autonomously.

Skilled in client account management, maintaining relationships, and identifying growth opportunities.

Excellent communication, storytelling, and presentation skills for senior stakeholders.

Strategic thinker with strong problem-solving skills and focus on continuous improvement.

Experienced in mentoring, talent development, and encouraging team growth.

Soft SkillsCollaborative, proactive, and results-driven.

Positive, resilient, and adaptable in fast-paced environments.

Curious, creative, and committed to delivering high-quality and impactful work.

What we offer:

Working for Ekimetrics is a lot of fun! Our London team consists of ~90 people. We come from all over the world to contribute value to Ekimetrics' success - we love what we do, and we want to share it! As well as an opportunity to join a driven, energetic, and highly innovative team, we also offer the following: A compensation package between 80,000 and 95,000 & 20% bonus + 5000 Corporate bonusHybrid working25 days annual leave + Bank HolidaysPrivate healthcare, life insurance, critical illness cover, and professional wellbeing support servicesCycle2Work scheme4% Group pension schemeConsciously cultivated culture: our best assets are our people. These sentiments are supported by our company values: Curiosity, Creativity, Excellence, Transmission and Pleasure.

As an employer, Ekimetrics offers equal employment opportunities to all, regardless of gender, ethnicity, religion, sexual orientation, social status, disability, or age. Ekimetrics strives to develop an inclusive work environment that reflects diversity within its teams. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.