Projects in C++:In 2008, I was part of the team developing the migration software from MS Exchange to Kerio Connect.As a MAPI specialist, I was responsible for getting user data from MS Exchange and converting them for Kerio Connect. From 2009 on, I gradually took over most of the responsibility for the maintenance and further development of the Kerio Outlook Connector (MAPI provider allowing MS Outlook to be used with Kerio Connect). This includes implementing new features required by new versions of Outlook, optimizing the performance (including SQL code in database backend) and adding new features for Kerio Connect.In 2010-2011, I was main developer of the Kerio Connector for BlackBerry (software allowing usage of BlackBerry Enterprise Server with Kerio Connect). Probably the most challenging work on MAPI based software, as BlackBerry Enterprise Server worked a MAPI client, however it was communicating with MS Exchange only and it was necessary to modify Kerio Outlook Connector to emulate behavior of Exchange server.Since 2014, I've been participating on projects in Javascript as well:In 2014-2016 I was part of the team developing Kerio Connect Client (web client for Kerio Connect, using Javascript and ExtJs framework).From August 2016, I've been in the team developing Kerio Connect Client for Windows/Mac (desktop client for Kerio Connect) written in Javascript on Electron platform (and a bit of C++ in some native modules).

Part of the team developing new generation of Kerio Outlook Connector (MAPI provider allowing MS Outlook to be used with Kerio MailServer) with offline capability.I was mostly responsible for synchronization between Outlook and Kerio Connect, designing the synchronization logic and implementing the part of the synchronization logic located on the client. Because of the offline nature of Connector it was necessary to solve the two way synchronization of any number of potentially conflicting changes from both Outlook and Kerio Mailserver with minimum conflicts reported to a user.

Maintaining webfilter in Kerio Personal Firewall - both C++ engine and JS ruleset. Complete rewriting of webfilter engine.Maintaining of Kerio Outlook Connector - MAPI provider allowing MS Outlook to be used with Kerio MailServer (now Kerio Connect).