Phone interview: brush up on your iOS basic concepts, i.e., delegation, cell reuse, notifs, classes vs structs, memory management, async apis, persistence... any of these is totally fair game. On-site: Come as you are. The project they give you is nothing more complex than the work you do on a daily basis. You likely won't have some of the tools that you normally use at your office, so review a lot of the iOS basics, especially if your team is using Rx, IGListKit, etc.
What is a layer? Explain it.
Questions related to basic algorithms and data structures, complexity analysis, iOS and Swift, and medium-level difficulty coding questions. Followed by a discussion of work history.
in the process of the interview, I would like to see what other people say about the process
your take on leadership and code quality
How to upload multiple image to server ?
There were some philosophical questions about Swift that I wasn't ready for.
Structure of project, SWIFT and Objective C questions
Build NSNotificationCenter from scratch and write a unit test for it. Pay attention to memory management and thread safety.
Find next permutation of a string
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