Sándor Kazi is both a data scientist at Dmlab ltd and a lecturer at Budapest University of Technology and Economics. He graduated from there in 2012 with a strong mathematical background and an interest in data-related technologies. As a data scientist he prefers to work with Python but still tends to use graphical tools like Rapidminer mostly for teaching data science. He considers himself a Hadoop and Spark enthusiast with some years of related experience.