It’s also available for hybrid solutions like Xamarin or React Native and is more efficient than SQLite. CollectiveRay is a website that helps companies who use their website as a primary channel for the success of their business. We help by creating actionable posts, guides and reviews around WordPress, web design, hosting and other online software platforms. Push notifications are an extremely powerful tool, but they are a sword that can from both sides. In fact, annoying or too many notifications are the primary reason why people uninstall mobile apps, or disable such notifications (and thus they lose all their effectiveness).

Employers ask this question to make sure you have experience working in this type of environment and how you handled the challenges that came with it. In your answer, share what strategies you used to stay connected with your team members and ensure everyone was on the same page. This question is an opportunity to show your interviewer that you have the experience and skills necessary for this role.

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If all goes well, you will have hired a professional mobile app developer with whom you can establish a professional working relationship. More importantly, they will be there for you long after the app is sent to the app store. If the developer is working remotely, will you check in in person every so often, and handle all communication electronically or via teleconferences? Time zones may also be an issue in this case; it’s important to consider before hiring a mobile app developer.

The following video is a great watch for understanding how to hire great developers. While it can be difficult to pinpoint their exact experience from a CV or portfolio, during an interview, you have the chance to ask them about the last project they worked on and how successful it was. Performance can be optimized by minimizing the app’s code and resource usage, optimizing network calls, and reducing the size of images and other media. Caching can also be used to improve performance by reducing the amount of data that needs to be downloaded. Tell about a time when you worked on a project to improve an existing application.

Q37: What is the difference between the AsyncTask and Thread classes in Android?

In turn, it can help them imagine what they can do for your organization. This allows for a deeper discussion of  your goals and plans for the app. However, it also exposes the applicant’s products as a “win.” You should pay attention to the connection between their past works and the project at hand. A monthly roundup of software strategy, design, and development topics from our experts. Submitted questions and answers are subject to review and editing, and may or may not be selected for posting, at the sole discretion of Toptal, LLC. Handling different screen sizes is very important also for designers, since they have to prepare graphics for each density group.

mobile developer interview questions

The landscape of app monetization has evolved, and in-app purchases and subscription models have become increasingly popular in generating revenue. I worked closely with our UI/UX designers throughout the development process. We held regular meetings to discuss design concepts, wireframes, and mockups, ensuring that both the visual elements and functionality were aligned with the project requirements.

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Of course, you can always hire a single developer, just be ready to wear many hats while building the app. Here you’re listening for agile development, and a project management process like Scrum. If agile doesn’t come up in a mobile developer’s response, it could be a bad sign. Remember we mentioned the part about not being in communication with your mobile app developer?

help desk engineer

This allows me to test the usability of the app before moving into development. This question can help the interviewer understand how you make decisions and solve problems. Use your answer to highlight your problem-solving skills, ability to think critically and creativity. Are you getting the best Business Analysis services for your mobile solutions? Check out our list of must-have steps during Business Analysis for an app and learn the tools we use. The chances are, they do not have such contributions and so will try to come up with something interesting to seal the deal.

Thus, if the candidate meets your requirements, it’s a win for both of you. It is not necessarily required for a developer to have extensive knowledge of UI and UX. This way, you know they can contribute to the app’s design from a developer’s perspective. However, when you ask the right interview questions, the chances of securing a good hire increases. Niels is a seasoned software architect and entrepreneur with over fifteen years of experience.

However, your CTO may have a better say in this, especially if you already have an app and need to build on top of what’s been already produced. You’ll learn what questions to ask and what red flags in the answers to watch for. Get free resources to help create great software and manage high-performing teams. It’s always a good sign if the professional is interested in what you do. The applicant may not have all the answers, but a great applicant can prepare ahead and research your company.

Use examples from previous work to show that you’re a creative person who’s willing to try new things. This is where your app development candidates will start to raise their eyebrows as clients never ask such things. You want to find out what their test devices are, especially when developing an Android app. A mobile phone is more prone to network problems than a standalone computer.

  • As a mobile developer, you’ll be responsible for ensuring that sensitive user data is protected, and that only authorized users have access to specific app features.
  • Cross-platform development skills are highly valuable as they enable developers to create apps for multiple platforms using a single codebase.
  • It is not necessarily required for a developer to have extensive knowledge of UI and UX.
  • Access to a user’s data or sensors is restricted by a permissions system.