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Daria Fitisova is a Data Scientist with extensive experience at Amazon Web Services (AWS) since December 2022 and at home24 SE since August 2016, specializing in credit risk and fraud detection. Daria Fitisova has developed classification models using machine learning techniques such as XGBoost and CatBoost, trained models with Python, Spark, and AWS services, and automated model-training pipelines in collaboration with data engineers using Airflow. Prior experience includes roles as a Junior Data Scientist and Working Student at Moscow State University, focusing on survey design and quantitative evaluation through various analytical methods. Daria Fitisova holds a Master of Science in Statistics from Humboldt-Universität zu Berlin and has studied at the Higher School of Economics, earning a Bachelor's degree in Sociology and undertaking a Master's degree in Applied Methods of Social Analysis of Markets.