Sergii Lutai works with Silverlight application development since first days of technology appearance. He is an expert in the technology. Sergii is the Head of Mobile Applications Development Dept. in Digital Cloud Technologies (DCT) company. Also he consulates clients and partners of the company in the Silverlight and related with it technologies. He is a Microsoft Certified Trainer and a mentor for students in the "Imagine Cup". He is an active member of the .Net user group and one of the most active members of the Silverlight community in the world.