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Nevena Karantonis currently serves as Line Manager at Options Technology since January 2022 and has held the position of Assistant Data Quality Manager at ACTIV Financial Systems, Inc. since September 2007. In this role, Nevena Karantonis specializes in analyzing, extracting, standardizing, and maintaining high-quality quantitative and qualitative data from diverse sources, ensuring compliance with stock market regulations, and implementing effective data quality controls. Notably, Nevena Karantonis possesses strong expertise in data methodology, contributes to the development of quality rules, and provides training to team members. Nevena Karantonis holds a Master's degree in marketing and management in international tourism from the University of National and World Economy, earned between 1986 and 1990.