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Efthymia Papachristou is an accomplished Geographic Information Systems (GIS) professional with extensive experience in various roles, currently serving in multiple capacities at AppyWay since September 2017, including Geographic Information Systems Specialist, Tech Lead, and Senior Technician. Papachristou previously worked at Geoanalysis S.A. from July 2008 to March 2017, where significant contributions were made to the design and development of the Greek National digital Cadastre database across multiple prefectural units. Responsibilities included project management, data analysis, spatial database creation, and quality control. Educational qualifications include a Master of Engineering in Transportation and Hydraulic Engineering from Aristotle University of Thessaloniki and a one-year course in Sustainable Management of Mountainous Watersheds with Intelligent Information Systems and GIS from Democritus University of Thrace.