Ionic + - Push Notifications

Hey guys.

I’m building an app (Android and IOS) with Ionic using Parse as a backend. I’m aiming to trigger push notifications (possibly through Parse’s Cloud Code?) to certain users when they are tagged in a post (so when saving a post, if users are “tagged” send them a push notification). How does one go about setting this up? I’m relatively new to push notifications and the content I’ve come across seems particularly confusing. Thank you for any guidance!