Elixir, C/C++, C#, Zig, Python, Go, and Java are among the languages I've had experience with in general native application development. Ultimately I'm a generalist! This has ranged from custom plugins to totally custom tools to aid in larger application development.
I have experience with Node.js, PHP, ES6 and CSS tools (SASS, Less etc.) I'm mostly a back end developer, but have experience with frameworks like React, Vue, and Angular.
I also have experience with frameworks such as Phoenix and Rails, as well as tools like Docker.
While I haven't released a game (yet) I enjoy doing game design and development in my free time. I've used Haxe, C# and C++ to develop custom engines and content creation tools. I also have experience with Unreal Engine 4 plugin development and Unity.