Hello, I have my expertise in C++ and I know almost everything in C++ like Threading, OOP concepts, Inheritance, polymorphism etc. I also know advance stuffs like Socket, IPC, PIPE, Fork processes etc. which uses system calls to make thing real fast.
If you are looking for 2D game development then I also happen to know SDL2 and other game engines and libraries.
If you are looking for an advance and fast developer then I am definitely the freelancer you are seeking for.
Let me know if you like my profile. Looking forward to work with you.