I interviewed for an iOS Developer role at T-DIGITAL by Deutsche Telekom. My initial experience with the HR team was fantastic—everything was well-organized, professional, and engaging. However, I found the technical interview a bit unexpected. I was prepared to delve into my projects utilizing reactive functional programming and SwiftUI, a topic I'm passionate about, but the interview deviated significantly and it became a monologue from my side, with only two off-topic questions posed by the interviewers, failing to engage with my CV or introduction. Unfortunately, the interviewers seemed particularly focused on approaches designed to optimize Apple’s legacy codebase rather than modern patterns aligned with Apple’s latest recommendations. Given my age, which is over 50, and noting that the company website highlights an average employee age of 33, I hope this focus on legacy systems and the overall disconnect in the interview were not influenced by age-related biases.

It was of 1 hr, in which almost every topic related to iOS was covered along with solid, architectural pattern etc. Questions based enum, generics, protocol, retain cycle, memory handling, copy on write and deep copy, difference between class and struct etc was included