Maxime Nadarassin

Built and led Sanofi’s global D2C CRO capability, driving up to +10% revenue uplift in key markets. • Defined and led Sanofi’s global CRO strategy for D2C websites, from framework design to worldwide rollout. (10 Countries / 25 markets) • Owned the end-to-end CRO setup: roadmap, experimentation framework, KPIs, governance and tooling. • Selected and deployed Sanofi’s A/B testing platform through a global RFP process. • Led cross-functional teams (product, design, tech, analytics) to prioritise and deliver optimisation initiatives. • Built a structured test-and-learn approach using full-funnel data (media, SEO, CRM, analytics). • Enabled local teams with playbooks, standards and dashboards to scale CRO globally.

Owned digital analytics governance and transformed data into strategic insights to support revenue-driving decisions. • Enhanced data quality and governance, increasing stakeholder trust in analytics for business-critical decisions. • Improved data quality & collection, improving understanding into user behavior across web and mobile platforms (360° omnichannel view). • Implemented and optimized tracking frameworks, ensuring precise measurement of customer engagement across all digital touchpoints. • Led internal training (GTM / GA) , fostering a data-driven culture across teams.

Led data & analytics initiatives to standardise measurement frameworks and improve digital ROI at group level. • Implemented digital marketing solutions (server-side tracking, UX tools, A/B testing), enhancing data reliability and user insights. • Built and managed global dashboards, measuring digital ROI and optimizing investment decisions. • Developed analytics frameworks, standardizing performance measurement across all digital properties. • Mentored and trained an intern, expanding analytics expertise within the team.

Defined and implemented web analytics strategies for a portfolio of clients. • Conducted full Google Analytics audits, improving data accuracy and tracking compliance. • Led complex tracking implementations (Google Tag Manager, Tag Commander) across web and mobile • Developed custom analytics solutions using JavaScript, tailoring data collection to unique client needs.

Led the global deployment of digital analytics and optimization tools across 25+ EMEA websites, standardizing performance tracking and enabling data-driven decision-making at scale. • Enabled data-driven decision-making by deploying A/B testing strategies to optimize conversion rates. • Implemented global tracking solutions (Tealium, Adobe Analytics), standardizing data collection across markets. • Trained and mentored an intern, ensuring continued expertise within the team.

- Responsible of media and web analytics tags implementation with Tag Management Systems - Research and development on a new method of tagging Bouygues Telecom website according to the IT team constraints (Magento and angular.js) - Implementations and troubleshoots of many analytics and media tags with TagCommander - Technical setup of A/B tests and provided analysis using AT Internet dashboard or Excel - Web analytics training for Bouygues Telecom internal teams - Delivered data reporting for business development team to help driving their digital strategy