That's a valid point. Although, we hire developers who are interested in becoming mobile developers. If you want to succeed as an iOS developer, Core Data and U

That's a valid point. Although, we hire developers who are interested in becoming mobile developers. If you want to succeed as an iOS developer, Core Data and UIKit are essential to learn. If the person isn't interested in doing the front end then mobile dev probably isn't for them. That should come up in the interview process.