Xavier F.

Xavier F. is an experienced Risk Data Analyst currently employed at Sardine since January 2025. Prior to this role, Xavier held various positions at Revolut from January 2022 to January 2025, where responsibilities included financial crime detection, account protection, and analysis of fraud patterns. Earlier experience includes a Data Engineer role at HiJiffy, focusing on data pipeline implementation and chatbot performance improvement, and another Data Engineer position at Critical TechWorks, where infrastructure for data ingestion and transformation was modularized. Xavier began a career as a Research Intern at Feedzai, working on fraud detection in banking datasets using heterogeneous graphs. Education includes an Integrated Master's degree in Informatics and Computing Engineering from Faculdade Engenharia da Universidade do Porto and a Master of Engineering in Informatics from the Technical University of Munich.