1. HR call: background experience, technology stack, why Spotify, etc.
2. Google Hangout interview with Engineer: programming test.
3. Onsite interview with a specific pattern given in advance.

Tip: "Cracking the Coding Interview" book will help a lot. It covers all the topics they generally ask in interviews.

Google Hangout Interview:

1. Implement a function for the Fibonacci series.
2. Given a sorted array, convert it into a binary tree.

Explain the time complexity of both.

Onsite Interview:

Five hours, 2:1 interview with the following specific pattern:

1. System Design and Scalability: Design a system for a "like" button for a blog post website. They expect you to explain the detailed design of components and the choice of specific technology/software products. Prepare to provide answers for a large number of users.

2. Programming: Sketch the Object-Oriented Design (OOD) and write code for a Sudoku game.

3. Use Case: The exact question cannot be described, but you will be given a diagram of a system with all components and how they interact. You can ask for all statistics and log information. You will be alerted to a problem in the system and asked to find what it is and why.

4. Spotify Value: Some tricky behavioral questions that need preparation:

   • What is your favorite work environment?
   • What do you like more – individual work or teamwork?
   • What does an ideal team look like for you?
   • What is Agile, and what are its advantages?
   • What does a Scrum Master do?
   • If you were appointed CEO, what change would you make in the company?
   • What does your manager do, and what does an ideal manager look like?
   • If you had the chance to become an animal, what would you like to be?