Ostrovsky, David

David Ostrovsky is a Senior Consultant at Sela Group and a software development trainer. He is co-author of two Microsoft official courses: Essentials of Developing Windows Store Apps Using C# (course #20484), and of Advanced Windows Store App Development Using C# (course #20485). David has been a computer geek since the age of 12, and a professional software developer since 1999. He specializes in application performance tuning, and in data analysis.