Developer Advocate at Oracle
Oleg Šelajev is a developer advocate at Oracle Labs working on GraalVM — the high-performance embeddable polyglot virtual machine for all programming languages. He organizes VirtualJUG, the online Java User Group, and a GDG chapter in Tartu, Estonia. In his spare time, he is pursuing a Ph.D. in dynamic system updates and code evolution. In 2017 became a Java Champion.