I applied to Capgemini through a referral and received an interview call 2-3 days after applying. It was a video interview, and the interviewer was very friendly. He asked basic iOS questions but required detailed answers. The call ended in 30 minutes. A few days later, I received another call from HR for a managerial interview. The process was very smooth and clear, and the HR representative was very friendly.

They will need your certificates before giving you an offer letter.

Basic iOS question:

MVC, MVVM, optional chaining, delegates and protocols, notifications, Core Data, weak vs. strong variables, GCD, OOP concepts, threading.