The full software lifecycle provider. Collecting the requirements, design, development, verification, deployment and support.
Desktop software development for x86, amd64 and various arm platforms based on Windows, Linux and macOS operating systems.
The tool for requirements and design management - Sparx Enterprise Architect. IDE for source code projects - QtCreator, Eclipse, Netbeans and MS Visual Studio. Possible tech stacks: C++/Qt, C++/MFC, C++/WinAPI, Java2SE/Swing, C#/WPF.NET, C#/WinForms.NET .
For DBMS purposes I prefer PostgreSQL. If it is necessary to process audio, video or images I can use hardware acceleration with GPU and H.264 transcoding. Also it's possible to work with OpenCL. I prefer KeyCloak as a library for authentication and authorization. To interact with MS Office I use VSTO.NET or the corresponding ActiveX components.