What Are The Required Skills Checklist To Follow Before Hiring An IOS Developer?

IOS Developer

When considering making an investment and seeking profits through a mobile application, many factors come into play. A mobile app is critical for every company because it puts goods and services directly into the consumer’s hands.

Mobile OS such as iOS and Android have risen to become dominant in the mobile application market. Both systems are widely adopted, and the devices that support them are used by millions of people worldwide. When creating an app for your company, you must choose between two operating systems. Although Android has a large market share, iOS applications have a high probability of being sold.

According to Flurry Analytics, approximately seven out of every ten applications built by mobile application developers are for iOS. The primary reason for this is because the income potential is much greater. Consumers spend more money on iOS applications than on Android apps. The simplicity of the iOS application‘s creation and the minimalist approach each business uses to make a significant impact. Most significantly, there are no fragmentation issues due to Apple’s limited device lineup and consistent user interface.

A Checklist of iOS Skills


Each mobile application development requires some degree of design expertise. All Apple’s products, including the Apple Watch, Apple TV, iPhone, and iPad, are highly visual. Even the app stores are visual: the most prominent listings’ listings are the icon and screenshots.

Design talents become secondary to communication and cooperation abilities when a professional designer works on your app. Nonetheless, the developer needs some fundamental understanding. A developer should be able to modify an app’s design without impairing its appearance and feel.

Additionally, the developer should be familiar with how alpha transparency works and the different resolutions required to support retina displays.

User Experience

User Experience (UX) is a subset of design that focuses on how the user interacts with the application rather than its aesthetic look. Talented iOS developers should grasp the fundamental principles of user experience (UX) design: how users browse the app, their expectations for screen layout, and select the appropriate UI components to address specific issues.

A senior app developer should draw up an app’s wireframe to address a specific workflow problem using the app.


A skilled app developer should be comfortable creating the application-side code required to communicate with a RESTful web service.


Each iOS developer should be acquainted with the best practices for securely executing activities outside the main thread. They should justify the need for this and show how to avoid race situations and stalemate.


A skilled iOS developer should be acquainted with the Instruments performance debugging tools. Additionally, they should be aware of the typical methods for resolving these types of situations.

Memory Management

Nowadays, all iOS developers should be acquainted with ARC’s memory management capabilities. It involves understanding how to avoid retain-cycles and segmentation problems. The understanding of auto-release variables and auto-release pools may be required for your application’s functionality.

Patterns of Design

It is recommended that IOS developers be familiar with the MVC (model-view-controller) structure, including the risks associated with KVO (key-value observing), the delegate pattern, and Notifications, among other topics. Aside from that, students should be aware of the difference between views and view controllers.

UI Design

Nowadays, most iOS developers should be familiar with auto layout through storyboards or nibs and code. Among the topics to investigate are aligning text labels, center objects and dealing with internationalization and localization.


Swift is being used in an increasing number of iPhone, iPad, Apple TV, Apple Watch projects, or in conjunction with Objective-C and Swift. Even if your project does not yet use Swift, an increasing number of popular iOS libraries are written in Swift. Swift is not without its challenges, but in my experience, Objective-C developers can pick up the basics in a matter of months. If you’re starting a new project, there’s a good chance you’ll use Swift.


Objective-C still accounts for a sizable portion of iOS applications. Unless you’re starting from scratch or have an entirely Swift-based application, Objective-C remains a critical skill. Much of the internet documentation (apart from Apple’s) is still written in Objective-C. Learning Objective-C is a bit more daunting than learning Swift due to its unique syntax. Because every iOS application uses the Objective-C runtime, an iPhone developer’s knowledge of Objective-C is still necessary.

Algorithms and Data Structures

Developer interviews often devote considerable time to data structures, algorithms, and big O notation. These questions are so prevalent because they form the backbone of the computer science curriculum. They’re simple to ask and have well-understood right responses — that is, until you get them wrong, which occurs more often than you would believe.

We believe that a heavy emphasis on data structures and algorithms is a mistake for many app development positions. The bulk of non-game applications are interfaces to online web services, and only a handful of the applications do data processing on huge data collections. In the few instances where speed is a concern, every common data structure and technique can be defined and implemented online, if not already integrated into iOS’s Foundation Framework.

If you don’t need a large amount of data processing, do you want someone who knows more than the fundamentals of data structures and algorithms? Perhaps not. However, you will undoubtedly need the services of someone with experience creating iOS applications.

You’ll need an algorithm expert, on the other hand, if your application is processing huge quantities of data, such as routing routes on a map.

It’s important to think about how difficult you want this part of the interview to be before you go into it. The more difficult it is to hire iOS developers, the more difficult it will be.

Source Control

A serious company must safeguard its investment in code via the use of version control (sometimes called source control). As a result, most iOS developers should be comfortable working with a distributed version control system such as git or Mercurial. Additionally, they should be acquainted with collaborative version control systems such as GitHub. Similarly, the developer should be well-versed in peer code review (see below).

During your brief interview, it is usually not a good idea to spend considerable time discussing source control details. It, however, is a fair indicator of the kinds of teams on which the developer has previously worked. A developer who is unfamiliar with version control is often inexperienced, and that is acceptable.

Review of the Code

Peer code reviews assist in maintaining and improving the quality of your application. As with source control, younger developers do not need expertise or understanding, and senior application developers should undoubtedly follow best practices in this area.


Every app developer should be acquainted with Xcode’s built-in debugging features. They should be able to create breakpoints, walkthrough code, and inspect variable contents.

The interface debugger, Instruments, and conditional breakpoints will be familiar to more experienced developers.

In the Nutshell

Hiring the finest iOS developer is not time-consuming if you know how to limit the choices. The preceding procedures will assist you in recruiting the finest personnel for the most critical development project with the least amount of risk. The aim is to hire iOS developers with specialized knowledge to monitor each step of app development.

Take the time to establish the app’s needs and then the development talents necessary to achieve the desired outcomes. Conduct the screening processes with care and assess their abilities appropriately. Finally, after you’ve considered all of these criteria, you’ll be able to identify the ideal iPhone app developers in India.


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