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Ewa Ratuszny serves as a Director of Risk Modeling and Analytics at UBS since April 2024. Prior to this position, Ewa was a VP-Operational Risk Model Manager at Credit Suisse from July 2018 to April 2024, where responsibilities included developing the capital model and stress testing approach. Ewa has been a Habilitated Doctor of Social Sciences at the Warsaw School of Economics since February 2017, focusing on Econometrics and research on cyclical fluctuations in the Polish economy. Earlier experience includes roles at Bank Pekao, CDM Pekao Securities, and Dexia Kommunalkredit Bank Polska SA, concentrating on market risk, financial instruments valuation, and risk management. Ewa holds a PhD in Econometrics and multiple Master's degrees from SGH Warsaw School of Economics.