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Sr Ios Developer Interview Questions

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1,456 sr ios developer interview questions shared by candidates

- dependency inversion - SRP - SOLID principles and general architecture of iOS - Multithreading (Largely old out of date stuff that is irrelavent so be careful here when studying) - type erasure - reference counting (swift has automatic but they wont accept it as an answer) - reactive frameworks and conceptions - oop vs functional - associated types and Generic - swift and objectvie c based questions
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Senior IOS Developer

Interviewed at Flo Health

3.7★
Jun 9, 2022

- dependency inversion - SRP - SOLID principles and general architecture of iOS - Multithreading (Largely old out of date stuff that is irrelavent so be careful here when studying) - type erasure - reference counting (swift has automatic but they wont accept it as an answer) - reactive frameworks and conceptions - oop vs functional - associated types and Generic - swift and objectvie c based questions

given an N-ary tree, print the boundary nodes in anti-clockwise order. • In a Binary Search Tree, find the value closest to a given double (recursively). • Implement a rate limiting API algorithm; extend the discussion into iOS-related implementation details. • System design: build a dating app like Tinder, focusing on scalability, user matching, and real-time performance.
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Senior IOS Developer

Interviewed at Uber

3.7★
Aug 30, 2025

given an N-ary tree, print the boundary nodes in anti-clockwise order. • In a Binary Search Tree, find the value closest to a given double (recursively). • Implement a rate limiting API algorithm; extend the discussion into iOS-related implementation details. • System design: build a dating app like Tinder, focusing on scalability, user matching, and real-time performance.

Interview started with an odd situation. Interviewer told me, my name is very funny....Then Ha Ha Ha Ha !!!! What???? He stoped his webcam, But As my webcam is on, I saw myself and answering his question by watching myself. There is no eye contact and watching youself on your computer and answering question is a bit tricky. On the other hand, his toddler son is disturbing him while he was asking questions to me. I requested 3/4 times that I didn't understand you question, because of his son's screaming loudly. Overall, a very bad experiance to me.
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Senior IOS Developer

Interviewed at Andela

3.8★
Feb 18, 2023

Interview started with an odd situation. Interviewer told me, my name is very funny....Then Ha Ha Ha Ha !!!! What???? He stoped his webcam, But As my webcam is on, I saw myself and answering his question by watching myself. There is no eye contact and watching youself on your computer and answering question is a bit tricky. On the other hand, his toddler son is disturbing him while he was asking questions to me. I requested 3/4 times that I didn't understand you question, because of his son's screaming loudly. Overall, a very bad experiance to me.

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