Hire Expert iOS Developers in 48 Hours

The next section will discuss what interview questions to ask before you hire an iOS developer to recruit the right candidate:

1. 7 technical questions to ask to hire iOS developers (And possible answers to expect)

   When you hire an iOS developer, you must first figure out whether the candidate is technically fit or not. Here are 5 top iOS developers technical questions to judge the interviewees' technical expertise.

   • Tell me the difference between synchronous and asynchronous tasks with iOS.

     A good iOS application developer would not focus on specific methods while answering the question of development. That is a great way to differentiate between hiring iPhone app developers and an average one.

     Competent iOS engineers would explain synchronous tasks depending on the previous tasks being finished before proceeding. Furthermore, asynchronous tasks function at the same time in the background.

   • Mention the essential features of Swift.

     A skilled iOS developer would know Swift programming language in iOS apps helps designers write and maintain correct programs with ease. Furthermore, the freelance programmers or regular developers would know the following essential features of Swift:

     • Security:

       A good iOS developer would emphasize more on the importance of checking codes before deploying them. Furthermore, the best iOS developers would know how Apple Swift removes unsafe codes before production.

     • Readability:

       A high-level iOS application developer would know how writing Swift codes is similar to writing in plain English. Thus, the developers would have to spend less time finding problematic codes in the mobile operating system.

     • Cross-platform support:

       An experienced iOS developer who has experience working in iOS would tell you how Swift supports multiple platforms, including macOS, Linux, and tvOS, among others.

     • SwiftUI:

       A modern iOS developer would also mention SwiftUI, which Apple introduced as the new declarative framework for building UIs. SwiftUI offers a simpler and more efficient way to build user interfaces across all Apple platforms.

     • Concurrency:

       Competent iOS developers would discuss Swift's concurrency features like async/await, which simplify writing asynchronous code, especially when handling complex network calls or background tasks.

   • How would you implement async/await in Swift for network calls?

     The candidate should describe how async/await allows asynchronous code to be written in a synchronous style, improving readability and maintainability. They should discuss how to use URLSession with async/await for making network calls. A strong answer would cover the following points:

     • Basic usage:

       The candidate should mention how to declare a function as async and how to call it with await when handling network requests, for example:

       async func fetchData() {
         guard let url = URL(string: "https://api.example.com/data") else { return }
         do {
           let (data, _) = try await URLSession.shared.data(from: url)
           // Handle data
         } catch {
           // Handle error
         }
       }

     • Error handling:

       They should explain how to properly handle errors using do-catch blocks to manage exceptions that may arise during the network request.

     • Concurrency:

       They should also highlight the benefit of using async/await in managing concurrent tasks more effectively, avoiding the "callback hell" or nested closures.

     • Use of Combine:

       A skilled developer might also mention the possibility of using Combine for reactive programming in conjunction with async/await for more complex data flow management, especially if the task involves chaining multiple asynchronous calls or observing changes over time.

   • What is a lazy property in iOS?

     A talented iOS developer would tell you that the properties whose initial value isn't compounded until they are in use for the first time are called lazy properties. Furthermore, the developer would know when a lazy keyword or modifier is included before the declaration of a stored property; the process indicates that the property is lazy.

     If you are satisfied with the answer, hire that developer.

   • Which JSON framework does iOS support?

     A competent iOS programmer would know that modern iOS development prefers using Codable over SBJson for handling JSON data. Codable is a more integrated and powerful method for encoding and decoding data into various formats. Alternatively, third-party libraries like Alamofire and SwiftyJSON are often used for more advanced JSON parsing and network communication needs.

   • Explain to me the architecture of iOS.

     The answer to the question helps you understand whether the candidate knows that iOS operates in a layered structure or not. One of the good iOS developers would know that the iOS architecture is composed of 4 layers. Each of these layers offers a programming framework.

     A competent iOS developer would expand the answer by including the lower-level layers that offer services all apps need. Furthermore, the upper-level layers offer the interface and graphics-related services.

   • Have you worked with ARKit for augmented reality applications? How would you integrate AR features into an iOS app?

     The candidate should demonstrate their understanding of how ARKit works and how it can be used to build immersive augmented reality experiences in iOS apps. A comprehensive answer would cover the following aspects:

     • ARKit Basics:

       The candidate should mention ARKit's core features, such as world tracking (using the device's camera and motion sensors to track its position in space), object detection, and scene understanding.

     • Integration into an iOS app:

       They should explain how to integrate ARKit into a project by adding the necessary ARKit and SceneKit frameworks. The answer should also cover how to set up an ARView or ARSCNView in the app's view controller and initialize an ARSession for tracking. Example:

       let configuration = ARWorldTrackingConfiguration()
       sceneView.session.run(configuration)

     • Object Detection and Plane Detection:

       A strong answer should mention how ARKit can detect flat surfaces (like tables or floors) and allow virtual objects to be placed on them. They may also touch on how to use ARKit to track specific objects using the ARObjectAnchor for applications like AR-based shopping or education.

     • AR Interaction:

       The candidate should discuss how to enable interactions with virtual objects placed in the AR scene. This could include touch gestures for rotating, scaling, or moving virtual objects in the AR world.

     • Performance Considerations:

       They should mention the importance of optimizing AR performance, such as managing frame rates, ensuring smooth interactions, and understanding lighting conditions for realistic rendering.

2. 5 exploratory questions to ask to hire iOS developers (And possible answers to expect)

   Before you hire an iOS developer, whether remote or full-time, you must be sure of not only checking their technical knowledge but also their communication skills, ability to solve problems, and teamwork as well. Here are 5 exploratory questions to find the perfect developers:

   • Tell me about a time when your opinion didn't match with your colleagues. Did you stand by what you thought was right?

     The goal of the question is to assess the communication and leadership skills of the candidate. This question would help you hire a dedicated iOS app developer whose iOS development skills are excellent.

     A skilled developer would explain the situation and the goals of the team. Furthermore, the developer would analyze and understand their colleagues' opinions as well. Also, the iOS developers would be firm but humble in expressing their points.

   • Have you ever collaborated with designers and engineers for a group project? Describe your role in the project.

     iOS developers must collaborate with designers and engineers at some point for the iOS development process. Thus, the developers must be team players.

     A competent developer would talk about the benefits of bringing iOS developers with multiple skill sets and areas of expertise for a big project. Furthermore, the developer would emphasize the collaborative efforts and highlight the ways other project members added value to the project.

   • Was there a project where you worked diligently, but the results were not up to the mark? What was the reason? What did you learn from the experience?

     The answer would tell you whether the candidate can take failure in stride. A skilled iOS developer for hire in their development career would have the mindset to accept failure and learn from the experience.

     Furthermore, focus on how the developer explains the reason for their failure and what the learnings were.

   • Have you ever had to take an unusual or creative approach to solve a coding problem? How did it go?

     The goal of the question is to check whether the developer can think out-of-the-box. A team of skilled iOS developers for hire would adapt to unusual approaches within a small amount of time. Furthermore, a competent developer would quickly figure out the ways to implement the approach that solves the coding problem, too.

   • Have you ever worked on a project where your boss or colleagues didn't communicate well? How did you handle the situation?

     A competent developer would clearly communicate when they think things are not going well. The developer would be firm but humble in their approach to communicating the needs required to finish the work.

• State your requirements

  Before you proceed with the hiring process, pen down your requirements. This should be an outline of the project scope, level of expertise needed, skills required, and the expected timeline. Documenting your project brief appropriately will guide your hiring process and make it more productive.

• Source from trusted platforms

  When you choose to hire remote iOS developers you will come across several emerging platforms. But, don’t fall prey to the first one you see to save cost. Look for quality talent and for that ensure you source candidates from trusted platforms like Uplers, Upwork, Toptal, etc. These names can connect your business with talented application developers cost-effectively after rigorous evaluation.

• Review work portfolio and resume

  When you shortlist iOS developers don’t go by the resume claims. Always verify the truthfulness by thoroughly reviewing their work portfolio, references, testimonials, and resume. This will help you gauge insight into their working pattern, coding style, quality of output, diligence, and overall suitability for the job.

• Evaluate skill set

  Just like experience and qualifications matter the skill set of the developers has equal prominence. This includes evaluating their technical proficiency via technical interview questions, coding tests, or other real-time assessments. This will reflect their knowledge of distinct iOS development frameworks, and programming languages such as Swift and Objective-C.

  Additionally, soft skills complement technical skills. To evaluate vital soft skills such as communication power, organizational ability, attention to detail, team spirit, problem-solving approach, etc. assign them a small project.

• Inquire about their remote work experience

  To work in a virtual work setup might not be a piece of cake for every developer for hire. Therefore, you must ask candidates about their previous experience of operating in a remote work environment. Also, gather information related to their preferred communication and project management tools along with their work routine.

• Consider cultural fit

  Alongside the technical acumen, the cultural compatibility of the developers for hire with your company culture, values, and mission is equally vital. A developer who aligns with your work style, culture, and vision will be more likely to collaborate with the team for substantial growth and success of your business.

When you decide to hire iOS developers for remote roles or for in-office you also need to stay on point in evaluating their roles and responsibilities and skill set. Here’s what that evaluation should look like:

1. iOS Developer Roles and Responsibilities

   As the term suggests, iOS developers work for designing, developing, and maintaining applications for Apple’s iOS platform. Their primary responsibilities include:

   • Translating application requirements into functional and user-friendly mobile applications.
   • Collaborating with designers to build intuitive interfaces that enhance user experience while adhering to Apple’s design guidelines.
   • They are also responsible for drafting clean and maintainable code in Swift or Objective-C, API integration, and management of app data using distinct database technologies.
   • Conduct thorough testing and debugging to ensure high performance and reliability while addressing any issues that arise during the development phase.
   • Staying updated about the latest industry trends, tools, and technologies to stay relevant and steer a competitive edge.
   • Collaborating with cross-functional teams including backend developers and product managers for a seamless application experience.
   • Implementing best practices to safeguard user data and privacy as security is a paramount concern.
   • iOS developers for hire also play a pivotal role in creating innovative mobile solutions that address user needs while driving business success.

2. iOS Developer Skill Set

   To ensure that iOS developers can live up to your expectations and fulfill their responsibilities flawlessly, you need to evaluate their skill set. Their expertise and competence will be uncalled for if they don’t have the required skills to complement it.

   The key iOS developer skill set for creating high-quality applications for iOS ecosystem include:

   • Proficiency in programming languages such as Swift and Objective-C. Swift is regarded as the more modern language favored for its safety and performance features, while Objective-C is relevant for maintaining legacy applications.
   • An understanding of the iOS SDK (Software Development Kit) is another key skill set for iOS developers. Developers are empowered to create feature-rich applications when they have a familiarity with frameworks such as UIKit for user interface design, Core Data for data management, and AVFoundation for media handling.
   • A solid grasp of design principles, especially Apple’s Human Interface Guidelines is essential for rendering intuitive user experiences.
   • Knowledge of version control systems like Git is also essential for collaborative development.
   • They must also possess strong problem-solving expertise and attention to detail with an analytical mindset. This helps to troubleshoot bugs effectively before they become a pain area.
   • Familiarity with agile methodologies can help enhance teamwork and project management skills to ensure timely delivery of applications.
   • Staying updated with the latest trends and technologies in mobile app development allows iOS developers to innovate and adapt making them an invaluable asset for your development team.

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1. iOS app upgradation and migration

   As technology advances and customer expectations shift, keeping your iOS app up to date is critical to remaining competitive in the market. iOS developers provide full upgrade and migration services to ensure that your app remains current and runs well across all versions and devices.

   Whether you need to upgrade your app to take advantage of the latest iOS features or migrate it to a newer version of the platform, iOS developers have the ability to complete the process smoothly, minimizing downtime and increasing user satisfaction.

2. Custom iOS app development

   Custom app development is essential for producing a successful app since it is tailored to your specific needs and company objectives. When you hire iOS developers they specialize in crafting customized solutions that address your individual requirements, whether you're developing a consumer-facing app, a corporate solution, or a gaming game.

   From concept to execution, they collaborate with you to understand your vision and turn it into a feature-rich, high-performance iOS app that appeals to your target audience.

3. iOS app consultation services

   Getting through the intricacies of iOS app development demands skilled assistance and smart strategizing. iOS developers provide consultancy services to assist you in defining your app's goals, identifying target audiences, and developing a strategy for success.

   They provide useful insights and recommendations by conducting in-depth analysis and collaboration to guarantee that your iOS app is in line with your business objectives and user requirements. From initial design to post-launch assistance, iOS developers act as trusted consultants, supporting you every step of the way to reach your app's objectives.

4. iOS app testing

   Quality assurance (QA) and testing are key components of the app development process that ensure your iOS app achieves the highest levels of performance, usability, and dependability. Before releasing an app to the market, iOS developers undergo extensive testing across a variety of devices and scenarios to detect and resolve any issues.

   From functional and usability testing to performance and security testing, they use rigorous testing approaches to offer an impeccable iOS app experience that delights users and encourages engagement.

5. iOS app monetization strategies

   Monetizing your iOS app is critical for improving your return on investment and developing long-term revenue streams. iOS developers have experience adopting revenue tactics like in-app purchases, subscription models, advertising, and paid downloads.

   They assist you in identifying the most efficient monetization strategies and smoothly incorporating them into your app by analyzing its target market and user demographics. With their help, you can maximize the revenue potential of your iOS app and achieve long-term financial success.

6. iOS app performance optimization

   In today's competitive app industry, performance is everything. iOS app developers specialize in optimizing your app's performance to provide agile, responsive, and smooth user experiences.

   They implement best practices and optimization strategies to ensure that your app runs properly under all scenarios, whether that means reducing app load times, optimizing memory usage, or increasing battery efficiency. By prioritizing performance optimization, iOS developers assist you in providing a superior app experience that keeps users engaged and delighted

7. iOS app analytics and insights

   Understanding user behavior and app performance is critical for driving ongoing development and innovation. iOS developers provide analytics and insights services that allow you to measure vital data, analyze user interaction, and receive essential insights into your app's success

   They assist you in identifying areas for improvement, optimizing user experiences, and making informed decisions to boost the success of your app. iOS developers provide comprehensive analytics and reporting features, allowing you to maximize the effect of your app and achieve long-term growth.

Therefore, as a business if you are looking to elevate your app presence and attain success in the iOS ecosystem you must hire iOS developers. Our experts can provide you with end-to-end solutions for ensuring seamless development, design, and maintenance. Realize your app goals with confidence with the excellence of our developers.