About the reviewers

Pavlo Lysak is a seasoned developer with 10 years of experience in JVM and languages that run on it. He has previously worked on Java, that is, JavaEE and Spring, however, since the past 5 years, he has been working mostly with Scala, that is, Play, Akka, and Spark. After working with companies such as Jaspersoft, Kreditech, and more, he became an independent consultant. His daily work includes the development of Reactive Web Applications and RESTful services, taking care of their stability, maintainability, and transparency.

Dave Wentzel is the Chief Technology Officer (CTO) of Capax Global, a premier Microsoft consulting partner. He is responsible for setting the strategy and defining service offerings and capabilities for the data platform and Azure practice at Capax. Dave also works directly with clients to help them with their big data journey. He is a frequent blogger and speaker on big data and data science topics.