Partner - Data Science & Marketing Effectiveness, London

Ekimetrics transforms how organisations make critical business decisions. We combine our Eki.Decisions platform with embedded experts in marketing, commercial effectiveness and data science, connecting decisions across business domains to drive real, scalable and lasting impact. Our dual purpose is Competitiveness and Sustainability, because lasting leadership is built on both.

With a full in-house team and offices in Paris, London, New York, Hong Kong and Shanghai, we are committed to responsibility and frugality in AI, and to staying loyal to our values and DNA.

Marketing budgets are under the microscope, CFOs want proof, and AI is rewriting how performance is measured. Ekimetrics sits at the centre of that shift. Since 2006, we have helped some of the world’s leading brands turn Marketing Mix Modelling (MMM) and AI-powered measurement into confident investment decisions.

As an Associate Partner, MMM & Marketing Effectiveness, you will be a senior leader of our London office. You will own a portfolio of strategic clients, shape how we grow our MMM and marketing effectiveness business in the UK and build the next generation of Ekimetrics talent. You will work alongside the London General Manager and be trusted with increasing autonomy and strategic ownership.

• →Lead a portfolio of strategic, multi-account clients, or a major programme for a Tier 1 client, as Key Account Manager.
• →Define and drive the road map for each programme, from MMM and marketing effectiveness through to commercial and business-wide effectiveness, using our solutions model and the Eki.Decisions platform.
• →Safeguard scientific quality: robust MMM and econometrics, causal inference, incrementality and experimentation, and models clients can understand and trust.
• →Turn model outputs into decisions: budget optimisation, scenario planning and forecasting that change how clients allocate their investment.
• →Steer the delivery excellence, impact and profitability of your portfolio, securing the right teams for every programme.
• →Build and manage relationships with key media, platform and technology partners to drive innovation and growth across our accounts.
• →Share best practice and reusable assets across the Ekimetrics community.

• Build long-term, trusted relationships with CMOs, CFOs and commercial leaders, securing renewals and positioning Ekimetrics as their strategic partner.
• Identify and convert growth opportunities across your accounts, extending the value we deliver as client needs evolve.
• Lead pitches and RFPs to win new logos and keep a strong pipeline.
• Be the face of Ekimetrics in the market: speak at conferences and client forums, and lead thought leadership on the future of measurement, including AI and GenAI.

• Lead by example, managing and coaching a team through regular 1:1s, performance reviews and talent assessments.
• Play a key role in recruiting, developing and retaining top talent in London, and in succession planning for the office.
• Contribute to our upskilling strategy with the Eki Academy team, and help shape the strategy of Ekimetrics globally and in the UK.
• Champion our culture and values: Curiosity, Creativity, Excellence, Generosity and Enjoyment.

Given the strategic nature of this role, this advert provides an overview of its scope and expectations. Detailed objectives, KPIs, commercial targets and strategic priorities are confidential and will be discussed with shortlisted candidates at the appropriate stage.

• A portfolio of strategic accounts that delivers measurable client impact, strong delivery standards and sustainable commercial growth.
• Trusted senior client relationships that lead to renewals, broader partnerships and long-term value.
• Healthy profitability, supported by disciplined management of scope, resources and delivery.
• A strong contribution to new business, through the origination and conversion of opportunities.
• A visible market presence that strengthens Ekimetrics’ reputation and opens doors.
• An engaged, high-performing team, with developing leaders and clear succession opportunities.
• A meaningful contribution to the direction and performance of the UK business.

Ideally, you have:

• Extensive experience leading strategic client relationships and complex programmes in consulting or a comparable professional services environment, typically gained over 15 or more years.
• Accountability for the commercial performance of a portfolio, including revenue growth, profitability and resource decisions.
• Deep expertise in marketing effectiveness and MMM, with a track record of turning analytical work into decisions at senior client level.
• Strong grounding in econometrics and statistical modelling, with the technical judgement to challenge assumptions, guide specialists and safeguard scientific quality.
• A clear understanding of how complementary approaches—including incrementality testing, experimentation and attribution—support a coherent measurement strategy.
• An informed perspective on the role of AI and data science in marketing effectiveness and business decision-making.
• Strong knowledge of the UK market and an established network, with the credibility to build senior relationships and create commercial opportunities.
• A track record of advising CMOs, CFOs, Chief Commercial Officers or Chief Data Officers, securing renewals and expanding strategic partnerships.
• Experience originating and winning new business, including leading pitches, RFPs and commercial negotiations.
• Strategic judgement and the ability to translate ambition into priorities, align resources and manage commercial trade-offs.
• Excellent communication skills, with the ability to turn complex evidence into a clear recommendation and influence executive decisions.
• A track record of developing high-performing teams and future leaders, alongside contributions to recruitment and succession planning.
• The confidence to take ownership and make decisions autonomously, combined with a collaborative approach across clients, teams and geographies.
• A bachelor’s or master’s degree in Statistics, Econometrics, Data Science, Economics, Applied Mathematics, Marketing Analytics or a related field, and fluent English.
• An entrepreneurial outlook and the motivation to help shape a growing UK business within an international organisation.