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Andrzej Kurach has experience in data warehouse, business intelligence, and database analysis. Currently working as a Data Warehouse Specialist at Wiener TU S.A. Vienna Insurance Group, Andrzej is responsible for analyzing business needs and developing ETL using Microsoft SISS. Previously, Andrzej worked as a BI Architect and Analytics Specialist at Centertel, focusing on marketing campaign systems using IBM Campaign, Oracle 11g, and Teradata. Additionally, Andrzej was a Database Analyst of Report Systems, creating reports and analysis using SQL on Oracle and Teradata databases. Andrzej also has experience as a Lecturer Assistant at Polsko-Japońska Wyższa Szkoła Technik Komputerowych w Warszawie, where Andrzej taught classes in Algebra and Mathematical Analysis for extramural studies.