Marketing Science

Liberis Ltd; Greater London; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Competitive salary and bonus

Learning & development opportunities

Travel to London HQ

25 days PTO + holidays

Birthday off

Job summary

Fospha, the measurement system for enterprise retail and ecommerce brands, is seeking a Marketing Science specialist in London. You will be the technical authority for the Enterprise tier, linking Customers, Customer Success, Data Science and Product to convert advanced models into trusted, actionable business decisions.

You will lead post-sales value delivery: designing first-party incrementality tests, calibrating models, and building learning agendas for clients, translating complex analytics

Qualifications

• 3–5 years of experience in marketing science, data analytics, or technical account management.
• Deep understanding of Media Mix Modeling (MMM), Multi-Touch Attribution (MTA), incrementality testing, and the broader AdTech ecosystem, including Meta, Google, and TikTok.

Responsibilities

• Client-facing support for model trust and methodology escalations.
• Design first-party incrementality tests and calibrate models.
• Capture field feedback and feed insights to Product and Data Science teams.
• Create definitive technical collateral and internal training to raise data literacy.

Skills

Marketing Science

Data analytics

Cross-functional collaboration

Communication skills

Problem-solving

Job description

Fospha is the measurement system enterprise retail and ecommerce brands run their business on. We give marketing teams one clear, daily view of what's actually working - across every channel and everywhere they sell, from their website to Amazon and TikTok Shop - down to the level of a single ad or piece of creative. It replaces guesswork and gut feel with a number marketing, finance and agencies can all trust and act on.

Brands including Dyson, Gymshark, Adanola and Huel use Fospha up to 25 times a day to decide where budget should move next. We've spent over a decade building this, with more than $40 billion in marketing spend now optimised through the platform - and we're scaling fast across London, Mumbai and Austin.

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, 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.

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

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