Nikos Zaharioudakis got introduced to the Open Source World back in 1995. He has been a systems engineer for high availability systems since then, always using Open Source Technology. In 2002 he joined PC Systems and helped in becoming RH Advanced Business Partner. In 2006 he got his Red Hat Certified Engineer and at the same time he is the first Red Hat Certified Instructor & Examiner in Greece. He has been an active member in the plan and implementation of many OSS based projects.