Klaas Bollhoefer works as a Chief Data Scientist and Big Data Evangelist with The unbelievable Machine Company GmbH (*um) in Berlin and Vienna.
He is father of Data Science Day (DSDay), coordinator of Big Data Week in Berlin, renowned lecturer, keynote speaker and member of several program committees of international Big Data events, e.g. O´Reilly Strata + Hadoop World or BITKOM Big Data Summit.