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Gearóid Lennon is a Senior Data Scientist at AtData, where responsibilities include designing and building analytical and machine learning capabilities for the Fraud Prevention solution. Previously, Gearóid held a similar role at TowerData, contributing to research and development in email, identity, and fraud solutions prior to the company's rebranding. Gearóid's extensive experience includes a position as Senior Data Science Consultant at TransUnion, focusing on fraud detection across various industries using advanced technologies and methodologies. Earlier roles include Data Mining Specialist at TransUnion and Data Scientist at AIB, along with teaching experience at CTYI. Gearóid holds a Master's degree in Data Science and Analytics from University College Cork and a Bachelor's degree in Primary Education and Mathematics from Mary Immaculate College, Ireland.