iOS Developer Interview Questions

iOS Developer interview questions:

iOS Developers are responsible for creating advanced applications for the iOS platform. When seeking qualified engineers for this role, it’s essential to find individuals who are passionate about mobile technologies and have prior experience working with Apple’s operating system.

While a background in Computer Science is often required, mobile developers frequently acquire much of their knowledge on the job. These interview questions are designed to help you evaluate candidates’ past experience with programming languages like Swift and their familiarity with the iOS platform.

To further assess candidates’ qualifications, it’s advisable to include a practical assignment in your hiring process. Staying informed about industry developments is crucial in this position, so it’s vital to ask candidates how they stay current with trends in mobile technology. Look for candidates who are enthusiastic about learning and adapting as developers.

Role-specific questions:

• Explain the distinction between atomic and nonatomic synthesized properties in iOS development.
• Can you enumerate the iOS frameworks with which you have hands-on experience?
• How would you go about defining your custom protocol in iOS development?
• Define Key-Value Coding and Key-Value Observing in the context of iOS development.
• Provide an explanation of how iOS supports multi-threading.
• Share your knowledge of security best practices in iOS development.
• Elaborate on what MVC stands for, and how is it implemented in iOS?
• Describe your approach to troubleshooting an iOS application that is experiencing crashes.
• Which interfaces do you typically choose when designing a user-friendly iOS application?
• Explain the concept of a managed object context in iOS development and its primary functionality.

Behavioral questions:

• Among the applications you’ve designed, which one are you particularly proud of?
• Share an instance when you collaborated with both engineers and designers in a group project. Could you elaborate on your role in that project?
• Can you specify your primary area of expertise in iOS development, and what topics or areas would you like to delve into more deeply?
• Describe an occasion when you designed new features to enhance the performance of an application.
• What was the most recent piece of information you found helpful for your work, whether from a book or a blog?