Shai Almog, Author, DevRel, Blogger, Open Source Hacker, Java Rockstar, Conference Speaker, Instructor and Entrepreneur

Aleksandr Gavrilenko, Java Tech Lead and Solutions Architect in FinTech and Big Data

Alex Yelenevych, Co-founder and CMO at CodeGym.cc, an interactive educational platform where people can learn Java.

Johnny, A senior Java developer and Java tutor at Learning Tree International programming courses.

Javin Paul, I am Java programmer, blogger on http://javarevisited.blogspot.com and http://java67.com