I had applied for a contract position. The interview was arranged for 90 minutes. There was a panel of 3 members, consisting of a manager and 2 technical interviewers. It started with technical questions and answers, and later the interviewers asked me to build an iOS App. However, no prior instruction was given that I should be prepared with the app-building environment. Instead, I was told by the recruiter that an online IDE would be shared, and I would be coding on it.

I had joined the meeting through the laptop given by my employer company, which unfortunately was Windows. I told the interviewers that I had connected through Windows and asked them to give me some time to connect back through my personal Mac. The day was just not right; I was unable to log in to Skype for Business through my Mac. So, I asked them if I could join through my personal Skype ID, and the manager said they would continue with questions and schedule another round for building the app.

I asked for feedback, and they said I was pretty good in this round but that they needed to test my iOS app-building skills in the next round and wrapped up the interview. When I asked my employer if they got another slot, my employer told me that GM doesn't want to proceed, which seemed unfair.

I would appreciate it if General Motors could tell candidates in advance about such instructions so they don't lose the opportunity. I felt the interview process was unprofessional, and the interviewers were in a rush to wrap up the interview.

Scenario-Based Question on Multithreading.

Getting data from a REST API.

Use of Singleton.

Difference between Android and iOS.

Life Cycle of an App in iOS and Android.