Ondrej is the owner of UseTech Design, a Michigan-based development company that focuses primarily on .NET and other Microsoft technologies. Ondrej is also a Microsoft MVP in C#, a writer for Visual Studio Magazine, and the current president of the Great Lakes Area .NET User Group in Southfield, MI. As a consultant Ondrej works across many industries including finance, manufacturing, and logistics. Areas of expertise include similarity and matching across large data sets, algorithm design, distributed architecture, and dependency injection.