Develop programs for desktop over 20 years. Delphi / C # / Golang, deep knowledge of WinAPI, the PLO. * MongoDB, MSSQL, Firebird, PostgresSQL, AbsoluteDB, Access, DBF, Paradox; * ActiveX / OLE / COM / DCOM (including MS Office, OpenOffice, 1C, CorelDraw, InDesign, etc.); * JSON/XML/HTML/DOM, and others; * WPF, MVVM, WinForms; * Design patterns, refactoring;