Christos Zigkolis is an experienced professional in the field of data science and applied AI engineering, currently serving as the Director of Applied AI Engineering at Pfizer since December 2025. Previously, Christos held various senior roles at instashop from April 2018 to November 2025, including Vice President of Data Science and Senior Director of Data Science. Earlier experience includes a Data Scientist position at Veltio, contributing to retail demand forecasting and replenishment supply chain projects. Christos has also worked as a freelance screenwriter and has a strong academic background, holding a Ph.D. in Computer Science from Aristotle University of Thessaloniki, where additional roles included research associate and teaching assistant. Educational qualifications include a Bachelor's and Master's degree in Computer Science, also from Aristotle University of Thessaloniki.
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