Senior Marketing Data Scientist – Digital Business – London £65,000 - £75,000 + bonus + benefits Rate: £500 – 600 per day Hybrid (London-based) Join a growing data science function driving transformation across several established consumer-focused businesses. This is a key opportunity for a Senior Data Scientist to specialise in Marketing Analytics, helping shape data-driven strategies and build impactful models that power acquisition, retention, personalisation, and campaign effectiveness. You’ll be part of a collaborative, technically skilled team that combines deep analytical thinking with commercial understanding to solve complex marketing challenges using machine learning and statistical modelling. Key Responsibilities • Advanced Analytics & Modelling • Design and implement machine learning algorithms and statistical models tailored to the marketing domain • Apply techniques such as segmentation, uplift modelling, customer lifetime value prediction, and targeting optimisation • Identify and adopt innovative data science methods to improve marketing performance Insights & Reporting • Analyse large-scale marketing datasets to extract actionable insights • Support campaign measurement, customer journey analysis, and ROI optimisation Stakeholder Collaboration • Work closely with marketing, digital, and data teams to understand business needs • Present findings and recommendations clearly to both technical and non-technical stakeholders • Help integrate models into marketing workflows and decisioning tools Model Governance & Data Strategy • Ensure models are robust, explainable, and compliant with governance and regulatory standards • Contribute to the broader data science roadmap and experimentation strategy Project Delivery & Agile Working • Lead and manage data science projects from scoping to delivery • Participate in agile ceremonies and demonstrate flexibility in a fast-paced environment Continuous Learning & Innovation • Stay up to date with the latest trends in marketing science, machine learning, and data engineering • Share knowledge and champion experimentation within the team What We're Looking For • Proven experience in a data science role within a data-rich environment • Strong background in marketing analytics or a clear passion to grow in this domain • Proficiency in Python and SQL (a technical test is part of the process) • Solid understanding of machine learning, statistical modelling, and experimentation • Strong communication skills to engage with business teams and explain complex concepts clearly • Experience working with cloud platforms and big data tools, preferably Azure • A proactive, curious mindset and eagerness to stay ahead of the curve Desirable Skills • Background in agile and collaborative project delivery • Familiarity with data visualisation tools (e.g. Tableau) • Exposure to model monitoring and MLOps practices • MSc or equivalent in a quantitative discipline (e.g. Data Science, Statistics, Computer Science) Please do send an up to date CV to eobiechefu@welovesalt.com