Karol Przystalski obtained a PhD degree in Computer Science in 2015 at the Jagiellonian University in Cracow. He is CTO and founder of Codete. Leading and mentoring teams of Codete. Working with Fortune 500 companies on data science projects. Built a research lab that is working on machine learning methods and big data solutions in Codete. Give speeches and training in German and English in data science with a focus on applied machine learning. Currently involved in training at O’Reilly.