Synthesized from 12 candidate submissions for ALL.
The candidate went through three technical and behavioral rounds focused on Android and Kotlin expertise. The process resulted in a successful job offer.
Focused on Android development, Kotlin language features, and data structures. The interviewer assessed knowledge of Android components and data sharing mechanisms between fragments.
Data sharing between two fragments presenting the same data
Kotlin extension functions
Kotlin inline and reified keywords
Android Activities, Fragments, and ViewModel
Focused on Android architecture, framework components, and concurrency management using Kotlin Coroutines.
Kotlin Coroutines usage in Activity and ViewModel
Usage of different Coroutine Dispatchers
Android Services selection based on specific scenarios
A mix of behavioral questions and a high-level design problem regarding an AR library.
High-level design for an AR library
Mapping digital components on input video
Ensuring low latency in video feed
Behavioral questions regarding teamwork and past challenging tasks
The interview process consisted of two technical rounds conducted via Hackerrank focusing on Android development. The candidate was rejected after the second round but received timely feedback from the recruiter.
The first round focused on Android fundamentals and problem-solving, covering core Android components and architectural patterns.
Android activity lifecycle
ViewModel and its survival
ViewModelStoreOwner and ViewModelStore
LiveData
Image caching libraries
Repository pattern
The second round involved writing pseudo-code for a network request flow and explaining complex Android lifecycle scenarios during configuration changes.
Pseudo-code for login network call using Retrofit and ViewModel
Activity lifecycle behavior during configuration changes
Activity lifecycle sequence during activity transitions
InterviewDigest