Hi.
I'm a programmer from Russia with strong skills in C++. You can see the full list of my skills on my profile page. My offer is to use C++ and Qt library. C++ will provide the best performance compared to other programming languages. Use of Qt library will make the application portable. The user will be able to run it in Windows, Linux, macOS, Android and iOS. I can create fancy GUI for it and customize the application for your needs.
I'm good with version control systems, I worked with Git and Bazaar, but I'm able to learn other systems as well. My knowledge in this field includes simple actions like staging changes, commiting them to a local repository, pushing them to a remote one, merging changes, branching, and more complex actions like resolving the conflicts etc.
If you're interested, feel free to contact me.
All the best,
Sergey.