Gregory Lewinski is an experienced professional in the fields of trading and quantitative analysis. Gregory held positions as an Assistant Volatility Trader and a Volatility Trading Intern at Marex from April to October 2025. Previous experience includes a role as a Data Scientist at La Banque Postale during the summer of 2022, an Analyste quantitatif in Credit Risk Sharing at BNP Paribas Asset Management from July to September 2023, and serving as an Administrator and RSE Manager at ENSAE Junior Études from January 2022 to January 2023. Gregory's educational background includes attendance at Lycée Carnot Paris, where a CPGE ECS was earned (2018–2020), Lycée Pasteur, graduating with a Bac with Mention Très Bien in Scientific Education Specialized in Mathematics, and ENSAE Paris, achieving a Diplôme d'ingénieur in Statistics (2021–2024), along with a year at Prepa Commercia (2020–2021) for CPGE ECS.
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