iOS is Apple's system that runs on iPhones and iPads. When you see iOS mentioned in a resume, it typically means the person has experience creating apps for Apple devices. This is different from Android development, which is for phones like Samsung or Google Pixel. iOS developers use special tools provided by Apple to build these apps, making sure they work smoothly and look good on Apple devices. It's similar to how house builders need specific tools and knowledge to build homes that meet local regulations - iOS developers need specific skills to create apps that meet Apple's standards and can be published in the App Store.
Developed iOS app that reached 100,000 downloads on the App Store
Led team of 5 iOS developers in creating a banking application
Created and maintained multiple iOS applications using Swift and iOS development tools
Typical job title: "iOS Developers"
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Q: How would you approach scaling an iOS app that needs to handle millions of users?
Expected Answer: A senior developer should discuss strategies like efficient data management, optimizing app performance, managing memory usage, and implementing proper server communication methods. They should also mention experience with handling app store releases and updates for large user bases.
Q: How do you ensure app security and protect user data in iOS applications?
Expected Answer: Should explain basic security practices like secure data storage, encryption, safe network communications, and following Apple's privacy guidelines. They should also mention experience with implementing user authentication and protecting sensitive information.
Q: How do you handle different screen sizes and orientations in iOS apps?
Expected Answer: Should explain how they make apps look good on different iPhone and iPad models, including making sure the app works well in both portrait and landscape modes. Should mention experience with Apple's layout tools.
Q: What's your process for finding and fixing app crashes?
Expected Answer: Should describe how they identify problems in apps, use Apple's tools to find the cause of crashes, and how they test fixes to make sure the app runs smoothly for users.
Q: What is the basic structure of an iOS app?
Expected Answer: Should be able to explain the basic parts of an app like the user interface, how the app starts up, and how different screens connect to each other. Technical depth isn't as important as understanding the fundamentals.
Q: How do you test an iOS app?
Expected Answer: Should describe basic testing on different devices, checking if buttons and features work correctly, and making sure the app doesn't crash. Should mention Apple's basic testing tools.