.L'Oréal is present in 150 markets on five continents. For more than a century, L'Oréal has devoted itself solely to 'Create beauty that moves the world'; it is now the industry world leader with €29 billion consolidated sales. Together, we solve complex challenges at scale, while making sure we stay committed to making the world a more inclusive and a better place for everyone & our planet. Experience the excitement of agility to shape the future of beauty; where diversity and purpose come together to create meaningful impact.Join our teams to be at the forefront of the Digital & E-commerce business & innovation in the world! With +4000 Digital & E-com experts, get ready for infinite career paths at the heart of our 360 digital transformation.We are looking for a new position, Marketing Mix Model Manager reporting to Marketing Effectiveness & ROI Director within CDMO team, who will be accountable for launching in L'Oréal Iberia the new Marketing effectiveness Beauty Tech solution, a strategic project aiming to drive brand equity & sales growth, by answering questions as: Media or Non-Media? Events or samples? In store or online? Retail Media or A&I? Social Media or Search?This position will be the bridge between: i) teams from L'Oréal finance, marketing & Media Agencies and ii) technical teams' experts on Data and MMM's both internal or external.Marketing effectiveness Beauty Tech solution is founded on Data Standardization for ROI comparability and powered by AI and Machine learning algorithms, to transform the way we operate. Based on our successful Media Mix Models, which have allowed us to improve Media ROI year after year, L'Oréal ambition is to scale it to Non-Media Marketing activities for long term growth.What You'll Do: Data Champion: You'll ensure to collect accurate and reliable data on all our marketing investments, covering everything from digital campaigns to in-store experiences, coming from sources as media platforms or internal financial dashboards. MMM Insights Guru: Collaborating with our MMM partner, you'll analyse its conclusions and marketing mix scenarios for maximizing the return on our spend. Think of it as uncovering the optimal mix for best ROI results. Team Player & Coach: You'll collaborate with marketing and finance teams, empowering Brand General Managers to make informed budget decisions that drive brand growth. You'll be a key player in educating and supporting the team through this transformation. Global Contributor: You'll participate in a global committee focused on marketing budget optimization, sharing best practices and learning from other L'Oréal subsidiaries around the world, like the US and UK. Change Agent: You'll be a passionate advocate for this transformative project, helping to drive its adoption and success within the organization