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Ios Software Engineer 2 Interview Questions

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5,593 ios software engineer 2 interview questions shared by candidates

1. Struct Vs Classes, Singleton design pattern, App Lifecycle, Retain Cycle and GCD related in depth questions 2. Questions related to constraints 3. Questions related to past iOS experience and types of projects worked on.
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Senior IOS Developer

Interviewed at Motive

4★
Jun 2, 2022

1. Struct Vs Classes, Singleton design pattern, App Lifecycle, Retain Cycle and GCD related in depth questions 2. Questions related to constraints 3. Questions related to past iOS experience and types of projects worked on.

How do you interact with the product/design team? What are the architectures that you are familiar with? Write a method that does some sort of grouping (don't remember the details). Given some mocks, explain how would you design the APIs.
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Senior IOS Developer

Interviewed at Affinity

4.2★
Oct 22, 2023

How do you interact with the product/design team? What are the architectures that you are familiar with? Write a method that does some sort of grouping (don't remember the details). Given some mocks, explain how would you design the APIs.

Explain how asynchronous processing works in your preferred programming language. • What is the difference between concurrency and parallelism? • How would you implement a queue for asynchronous task handling? • What are common ways to prevent race conditions? • How does the event loop work? • What’s the difference between threads and coroutines? • How do you handle exceptions in asynchronous code? • Describe how you would design a message queue system. • What’s the difference between blocking and non-blocking I/O? • Explain how promises/futures work. • How would you debug performance issues in an async system? • Live coding: implement a simple asynchronous queue or worker pool.
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Middle IOS Developer

Interviewed at Innowise Group

3.8★
Oct 5, 2025

Explain how asynchronous processing works in your preferred programming language. • What is the difference between concurrency and parallelism? • How would you implement a queue for asynchronous task handling? • What are common ways to prevent race conditions? • How does the event loop work? • What’s the difference between threads and coroutines? • How do you handle exceptions in asynchronous code? • Describe how you would design a message queue system. • What’s the difference between blocking and non-blocking I/O? • Explain how promises/futures work. • How would you debug performance issues in an async system? • Live coding: implement a simple asynchronous queue or worker pool.

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