Cristian Petrula joined the IT industry at a young age. Back then he had 21 years and eager to learn new technologies. In the last 10 years he experienced a full stack of technologies: Delphi, .NET, JAVA SE/EE. Different roles were assigned to him, from junior to the leading developer and now Java Technical Leader at Xoomworks. His expertise is mainly on back-end systems, optimization and high availability systems. Starting this autumn he also teaches Java to students at the Technical University of Cluj-Napoca. From the beginning Cristian was passionate by algorithms and programming, now software development is more than a hobby. In his free time he likes mountain biking, 3D puzzles and many more social activities. ©