Liliana Kowalczyk

Liliana Kowalczyk, PhD, is a seasoned marketing science professional currently serving as a Marketing Science Partner at Meta since September 2025. Prior to this role, Liliana worked at Nielsen from March 2021 to September 2025 as a Client Business Partner focused on Marketing Effectiveness, specializing in Marketing Mix Modelling and Media Campaigns ROI Analysis, and also held the position of Senior Modelling Analyst. Academic credentials include a Doctor in Business Economics obtained from KU Leuven, where Liliana also conducted research as a PhD Researcher in Quantitative Marketing, alongside earlier experiences in advisory and research roles at PwC Polska, the British Polish Chamber of Commerce, and the Ministry of Treasury in Poland. Educational background comprises a Master's degree and Bachelor's degree in Economics from the University of Warsaw and an Erasmus Exchange in Economics from the University of Paris I: Panthéon-Sorbonne.