15 Android Interview Questions for Hiring Android Engineers

Android is the leading smartphone OS on the global market today. According to BankMycell research, the number of users who prefer this operating system is over 3.9 billion worldwide. Android holds about 71% of the global market share. It is expected that the number of users who bet on this OS will reach the maximum in 2025 (about 4.2 billion).

The main reason for the increased demand on Android development services is widespread adoption and high requests for apps for this smartphone operational system. If you are a businessman, a CTO, or a project manager who is searching for a skillful technician and enthusiastic programmer of mobile applications, take a closer look at recommendations on the best interview questions to hire your perfect match.

‍

The Intro Stage: Improve Your Search to Interview Only Relevant Candidates

You know well that it is better to look before you leap. That is why the introductory stages of your employment process matter. Before exploring the best Android interview questions to get extremely comprehensive information and hire true tech talent, let’s start with the optimization of your search. This is a critically important intro stage of IT recruitment.

Here is a list of recommendations to take into account if you are interested only in highly competent candidates:

• Be open to innovations and automation. It is possible to exclude any recruitment agencies from the employment process if you start integrating digital-friendly and AI-powered solutions as soon as possible.
• Try alternative full-cycle hiring approaches — for example, Wild.Codes is the modern platform with AI-vetted and expert-verified candidates’ portfolios to choose from. There are job description templates based on machine learning algorithms, a chatbot powered by artificial intelligence, and many more goodies.
• Try video interviewing platforms and analytical tools for unbiased evaluation of candidates via machine-learning algorithms. Explore paid job ads, alternative networking channels, and employee referral program applications to hire developers. 
• Do not neglect using CRM systems for optimized talent pipelines and ATS technologies for intelligent hiring management processes. 

Your best-matching Android engineer can be found faster, easier, and with zero stress or challenges if you follow these tips. Change your approaches to employment ASAP. It is possible to avoid standard outsourcing, cooperation with recruitment agencies, and similar ways to source relevant candidates who develop the Android apps you need.

‍

The Best 15 Questions for an Interview with an Android Developer

You may ask your interviewees almost about anything. However, the win-win way to get maximum insights is to use these 15 questions - just listen to your candidate and make conclusions. Evaluating responses will not be a difficult task due to the maximum information you are going to receive after such a dialogue:

1. Name 5 top frameworks for Anfroid-focus mobile app development.
2. How can 5G integration change Android development in 2025?
3. Explain using Jetpack Compose for Android app development, especially for UI design optimization.
4. Ask to explain the Android activity lifecycle. Let your interviewee describe the significance of this aspect in the context of the overall app’s behavior.
5. Compare Fragment & Activity. Ask the interviewee to explain the ways to use these component-based architectures.
6. List the main features of Intents and PedingIntent. Compare them while highlighting their strengths. 
7. Say something about Android-based preserving data during screen rotation. Can ViewModel help you with this task?
8. Which one will suit large data sets the best - RecyclerView, ListView? How will you create UI design patterns?
9. List all the types of storage accessible for Android. 
10. What HTTP communication libraries do you know? Which one do you use more often? Why?
11. Compare Coroutines to Thread. Discuss their pros and cons.
12. What is WorkManager in Android? Can you name its difference from AlarmManager?
13. Talk about the management of dependency injection in Android apps. Which DI patterns, like Gagger or Hilt, perform the best? Why?
14. Explain how you can optimize the performance of the Android application with the sluggish scrolling background.
15. What experience did you have with patterns like MVI, MVVM, or MVP? Which one you prefer the most?

The above-listed questions are used to check your candidates' tech expertise. But do not forget about creativity checks, psychology testing, and many more. You can prepare thought-provoking and work-related questions to screen all the analytical, organizational, self-discipline, and other soft skills. More tips and hacks for the best interview with your potential developers can be found here. We wish you good luck!