Since 1998 is engaged in development and sale of own software on the shareware model under the trademark Korzh.com.
Main direction: program components for various platforms and development tools (Delphi, .NET, ASP.NET).
At present, the Korzh.com products are used by developers in more than 150 countries, including the US, UK, Germany, France, Canada, and others.
2007-2012 - an architect of functionality and then the head of the Mail.UA project.
Since 2011 - founder and lead developer of the Wish&Present service - a social platform of wish lists management and gifts for various holidays.
Since 2012 - founder and lead developer of the Tutorle service which helps people that study foreign languages to improve their vocabulary.