Senior Marketing AnalystHybrid - London - 2-3x a week Up to £80,000 A great opportunity to join a growing ecommerce organisation where analytics sits at the heart of operational decision making. This role offers real ownership, variety, and the chance to shape how a high-volume supply chain operates while the business continues its transformation journey. The CompanyThey are a large, international ecommerce business with a strong sustainability mission and a highly scalable operating model. What began as a small start-up has grown into a global organisation with operations across the UK, Europe, and the USA. They trade across multiple channels and are now investing heavily in strengthening their direct proposition and optimising their supply and operations functions. Collaboration, experimentation, and a customer-first mindset drive their culture. The RoleAs Senior Supply Chain Data Analyst, you will work on high-impact operational analytics, including: Analysing stock availability, submissions, retention, and fulfilment performance. Assessing supply chain efficiency across multiple channels and supplier types. Supporting warehouse optimisation, including storage utilisation and operational efficiency. Conducting cost analysis across postage, shipping, and fulfilment methods. Designing and analysing A/B tests and operational experiments to improve processes. Working hands on with SQL, Python, and visualisation tools for reporting and modelling. Mentoring an analyst and provid