Position: Senior SDE-Android
Location : Bangalore
Date: June, 2019

All interviews were conducted on skype.

Round1: Recruiter phone screen

• What are the things that you like/don’t like in your current company?
• Why Truecaller?
• Why Stockholm?
• How do you handle quality control in your current app?

Round2: Takeaway assignment
Not a very difficult one. They'll give around 1 week to complete.
Focus on architecture. Language grip. Functionality.

Round3: Telephonic : Technical (java + android)

• Reflection
  • What it is
  • Any library that uses it
  • Dagger uses library?
  • Problem in Reflection
• Around concurrency, multithreading
• Why multiple threads
• Problems in multithreading
• Activity and fragment lifecycle
• Android process death in case of low memory
• REST protocol
• TCP and UDP
• Explain Immutable objects.
  • why do we need them.
  • any example of already existing Immutable class in java.
• How do you implement Singleton
• Different ways to persist data in android
• Examples of operations that drain the battery
• Content Provider
  • Why?
  • How it works?
• Service:
  • What process does it run in?
  • Thread?
• An Example scenario where we have report location every 15 mins. Bunch of questions around it. How to save battery etc.
• Sending data from activity to fragment
• Sending data from fragment to activity

Round4: HM round

• experience
• what value do you bring to truecaller
• what your daily day looks like
• two good things about current company
• two bad things about current company
• why truecaller