Patrick Baier is a Machine Learning engineer at Zalando, where he is designing and implementing distributed machine learning algorithms in the fraud detection domain. Working at the intersection of machine learning and production code, he is experienced in a large and diverse tech stack, including Spark, Scala, SQL, AWS, Docker, R and Python. Patrick holds a Ph.D. in Computer Science from the University of Stuttgart. He was member of the Distributed Systems research group where he was working on probabilistic models to support energy efficiency of mobile phones.