What programming language should I use for a ATM-like kiosk? Python, Java, Javascript, etc?

It really depends on if you're limited by the hardware at all.

@fyroc lets say its running on a netbook type laptop

@jdmkaan with what OS?

@fyroc doesnt matter.

Install Android, make it into a Cordova/Ionic application and have a backend in whatever (assuming there's a requirement for network calls, passwords, encryption, etc (like an ATM)). If it's all front ended, I'd still save install Android and do the whole thing in Java.

ATMs are usually using some sort of Windows. You would need something that can talk to the hardware though. I think most ATMs use C or C++. Personally, I would use something that can easily speak with the hardware for the cash exchanges, scanning the cash and checks, security camera... It will also need to have a very secure network. I wouldn't use a web based language so I could block every port possible. So that should narrow it down some.

@fyroc you are right ATMs use Windows Compact Edition... its found mostly in places like airports metro stations etc. As for a netbook if it runs Windows any C C++ project could work ... if its a win 8+ you can use higher .net framework ...

if you arent comfortable with C then try ElectronJS/node webkit and JS fot running a win32 app in pure nodejs

The best bet would be Qt with QML. If your hardware is pretty good, and you want a great-looking interface, choose electron or Nw.js.