I have over 20+ years of professional experience in the software development field. I have been working in various areas including marine and aero navigation systems, IT auditing software and CRM systems participating in the development of various applications mostly in C++ and C# on Windows and Linux platforms. Also for some time period I worked on telecom hardware inventorying system in Java. I have wide experience in the the development of Windows based applications in C++/C# with WPF + DirectX and cross platform applications with QT + OpenGL. To a certain degree I am familiar with Oracle Database and its C++ interface, have an experience in writing a C++ wrapper for SQLite and using MySQL with Nginx + PHP (LEMP). I even participated in the development of a Vue.js website and created a couple of websites with Jooma and WordPress. A long time ago I had some degree of knowledge close to deep in previously poplar Windows based technologies and libraries like MFC, ATL, VCL, COM, OLE, ActiveX, Windows Forms, ADO, ADO.NET and participated in the development of the applications that use them all in one + VB6.For the last few years I have been focusing on the development of cross-platform applications with QT. I developed and supported a QT application for Android with 100 000+ downloads on Google Play and gained an experience of migrating this application to UWP and iOS and publishing it on Apple App Store and Microsoft App Store. Used QT 6.2.2, QML, CMake, JNI, MSVC, Android CLang, Apple Clang, Google AdMob SDK, Yandex Mobile Ads SDK.I have a couple of cross-platform C++ libraries on GitHub.com where I aggregated some reusable components from the projects I worked on. They demonstrate my coding style and some template metaprogramming techniques I used. Feel free to clone them at https://github.com/dmitriano/Awl and at https://github.com/dmitriano/SQLiteWrapper and test.