SIMON MAPLE vJUG Founder/Organiser Simon is the Director of Developer Relations at Snyk, a Java Champion since 2014, JavaOne Rockstar speaker in 2014, Duke’s Choice award winner, Virtual JUG founder and organiser and London Java Community co-leader. He is an experienced speaker, having presented at JavaOne, JavaZone, Jfokus, DevoxxUK, DevoxxFR, JavaLand, JMaghreb and many more including many JUG tours. His passion is around user groups and communities. When not traveling, Simon enjoys spending quality time with his family, cooking and eating great food.

OLEG ŠELAJEV vJUG Organiser Oleg is a developer advocate for the Graal project at Oracle Labs, which aims to make programs run faster and developers more productive. He helps to organize VirtualJUG, the online Java User Group, and a GDG chapter in Tartu, Estonia. In 2017 was awarded a Java Champion title. Previously, Oleg was a part-time lecturer at the University of Tartu and since then enjoys speaking, teaching, and participating in software conferences all over the world. Loves pizza and playing chess. Favorite languages: Java, JavaScript, and Clojure.