Trouble Getting Code Signing Certs


Hello, first post here.

I’m building an electron app for a client, and the app has come to a point where it’s finished and we just need to get the dang thing signed.
I’m using for packaging and distributing the app. From what I’ve found, it seems like for signing a mac build I will need a Developer ID Application cert, but I’m having a lot of trouble finding out how to get one of these, I have a 3rd Party Application Developer Cert but it seems like this won’t do the job. I can’t seem to figure out how to export the right one from, where I know it should be at.

Does anybody know how to get the correct cert for code signing through electron-builder? Any help would be greatly appreciated.