Léo Grosjean is a marketing measurement product manager with 11 years of experience combining data science, analytics engineering and product leadership to drive ROI-focused marketing decisions. Trained at CentraleSupélec with a strong quantitative foundation, he has built and industrialized ML-driven solutions (from transformers to demand sensing) and led cross-functional data teams to deploy CDPs, MMM and activation platforms on GCP/BigQuery. At Servier he scaled a centralized analytics platform and operationalized marketing AI; at Opella he now owns the internal MMM tool and a proprietary A&P allocation assistant to accelerate adoption and optimize spend across markets. He blends hands-on modeling and cloud engineering with a strategic business background rooted in early finance and omnichannel roles, and brings proven experience translating complex analytics into commercial impact. Notably, his student leadership in large-scale events demonstrates strong stakeholder and external-communications skills beyond pure technical delivery.
11 years of coding experience
5 years of employment as a software developer
Master of Science (M.Sc.) Business Strategy Applied Mathematics for Healthcare, Master of Science (M.Sc.) Business Strategy Applied Mathematics for Healthcare at CentraleSupélec
Diplôme Universitaire Formation Supérieure Biomédicale (IFSBM), Diplôme Universitaire Formation Supérieure Biomédicale (IFSBM) at Paris-Sud University (Paris XI)
Classe préparatoire MPSI/MP* Sciences physiques et mathématiques, Classe préparatoire MPSI/MP* Sciences physiques et mathématiques at Lycée Henri Poincaré
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