Marketing Science Lead

About us Fospha is dedicated to building the world's most powerful measurement solution for online retail. For over a decade, we've helped teams make smarter decisions with full-funnel marketing insights, forecasting, and optimisation. With Fospha, every team moves faster and grows smarter. Trusted by leading brands across three continents, including Huel, Oh Polly, and Represent, Fospha manages $4 billion in annual ad spend. We're scaling fast across London, Mumbai, and Austin – and we're now looking for two Marketing Science Leads to join our Customer Success team to support the growth of the business from all things measurement! Ready to make your mark? Let’s go! 🚀 The Role: Fospha is pioneering the future of marketing intelligence, moving enterprise retailers beyond the broken world of click-based attribution. Our mission is to transform complex data into the single, most trusted source of truth for CMOs and CFOs managing high-stakes budgets. As a Marketing Science Lead, your focus will be acting as the technical authority for our Enterprise tier, serving as a dedicated conduit between our Customers, Customer Teams, Data Science, and Product teams. We are looking for a rigorous, analytical practitioner ready to operationalize advanced modelling into tangible business decisions, driving sustainable growth for clients like Huel, Dyson, and Gymshark. You will operate as a post-sales, value-delivery engine embedded directly within the Customer Success department. Key Responsibilities Client-Facing Support: Proactively and reactively support Customer Success and Account Management teams on model trust and methodology escalations, directly combating objections related to competitors like Triple Whale or Northbeam. Incrementality & Learning Agendas: Act as the primary Marketing Science Strategist, designing first-party incrementality tests, calibrating models, and building structured learning agendas for clients. R&D "Mouthpiece": Systematically capture and triage field feedback and methodological objections, feeding structured intelligence back to our Product and Data Science teams. Collateral & Knowledge Creation: Build the definitive technical collateral, Academy content, and internal training to raise the baseline data literacy of our entire Go-To-Market organization. What are we looking for? We hire for potential - you should apply if you: Marketing Science Experience: 3-5 years of experience in marketing science, data analytics, or technical account management. Measurement & AdTech Knowledge: Deep understanding of Media Mix Modeling (MMM), Multi-Touch Attribution (MTA), incrementality testing, and the broader AdTech ecosystem, including Meta, Google, and TikTok. Commercial Translation: The rare ability to translate complex data science and Bayesian models into highly digestible commercial insights for non-technical executives. Communication Skills: Excellent verbal and written communication skills. Ability to articulate complex concepts clearly and persuasively to diverse audiences. Proven track record of working effectively in cross-functional teams. Ability to build consensus and drive alignment across diverse stakeholders. Problem-Solving Skills: Strong problem-solving abilities with a proactive approach to identifying and addressing challenges. Ability to navigate ambiguity and make sound decisions under pressure. Our Values and Principles You will be able to demonstrate examples of our core principles: Seek inclusion & diversity: We create an environment where everyone feels welcome, and people are encouraged to speak and be heard Work Hard, Work Well, Work Together: We take responsibility for making things happen, independently and together; we help colleagues in need and close loops, making sure our work is complete and has lasting impact Grow: We are proactive, curious and unafraid of failure Customer at the heart: We care about the customer, feel their pain and love building product that solves their biggest problems Candour with caring: We deliver candid feedback with kindness and receive it with gratitude Above all, our people show a willingness to work together and get their hands dirty to deliver product success, which means our customers are successful! What We Offer: Competitive salary and bonus Opportunities for learning and development within the Blenheim Chalcot venture network Travel to our London HQ and cross-team 25 days PTO including 11 federal public holidays Your birthday off Daily office snacks and treats

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