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Roman Denysiuk is a seasoned data professional with extensive experience in software engineering and machine learning, currently serving as a Senior Software (Data) Engineer at Danske Bank since December 2020. Expertise includes developing and optimizing ETL pipelines in PySpark, orchestrating data workflows with Apache Airflow, and utilizing Azure DevOps for CI/CD. Prior roles at Danske Bank involved significant contributions as Chief Data Scientist and Senior Data Scientist in enhancing fraud detection applications through machine learning and optimizing data processing efficiency. Earlier experience includes research engineering at CEA List, focusing on multi-agent systems for smart grids, and a strong academic foundation with a PhD in Industrial and Systems Engineering from Universidade do Minho, complemented by a Master's degree in Electrical Engineering from the National Technical University of Ukraine.