Technical Questions: - Differences between Threads and Android Services - What is Sticky Intent - Differences between Parcelable and Serializable - Talk about Activity/Fragment lifecycle - What is IntentService - Differences between Kotlin and Java - Nullable objects in Kotlin - Kotlin strengths over Java Behavioral Questions: - Talk about different teams who are working on the same project - How to identify what is the problem when it takes around 10sec just for uploading something to the backend. - How to identify if there is an issue in the client-side app