Spotify

Music streaming platform using ML for personalization and recommendation.

4 Rounds ~21 Days Hard

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The Interview Loop

Recruiter Screen (30 min)

Standard fit check, behavioral questions, and resume overview.

Technical Loop (3-4 Rounds)

Deep dive into domain knowledge, coding, and system design.

Interview Question Bank

All Roles Backend Engineer 8 Data Engineer 6 Data Scientist 4 Frontend Engineer 5 Full Stack Engineer 9 Machine Learning Engineer 7 Software Engineer 8

All Topics Algorithms 9 System Design 8 Frontend 5 Leadership 3 Culture Fit 3 Engineering Practices 1 Data Structures 1 Security 1

Full Stack Engineer • Coding • medium

Implement an LRU Cache. This is often used in our mobile and web clients to cache recently played songs or album art.

#Data Structures #Linked List #Hash Map

Practice

Full Stack Engineer • Coding • hard

Write a function to merge K sorted arrays. Imagine each array represents a sorted list of timestamps when a user listened to a podcast.

#Heap #Divide and Conquer

Practice

Full Stack Engineer • Coding • easy

Given an array of song durations and a target playlist duration, find two songs whose total duration exactly matches the target.

#Hash Map #Arrays

Practice

Full Stack Engineer • Coding • medium

Given a string representing a user's listening history (e.g., 'ABCBAC'), find the length of the longest substring without repeating characters.

#Sliding Window #Strings

Practice

Full Stack Engineer • Coding • easy

Implement a function to flatten a deeply nested array of playlist folders into a single flat array.

#Recursion #Arrays #JavaScript

Practice

Full Stack Engineer • Coding • medium

Write an algorithm to find the 'k' closest songs to a given song based on a similarity score.

#Heap #Sorting

Practice

Full Stack Engineer • Coding • medium

Given a binary tree representing a hierarchical genre classification, write a function to find the lowest common ancestor of two genres.

#Trees #DFS

Practice

Full Stack Engineer • Coding • easy

Write a function to determine if a given string is a valid palindrome, considering only alphanumeric characters. Useful for validating certain user inputs.

#Strings #Two Pointers

Practice

Full Stack Engineer • Coding • easy

Given an array of integers representing daily active users over time, find the maximum profit you could make by buying and selling Spotify stock (Best Time to Buy and Sell Stock).

#Arrays #Dynamic Programming

Practice

Difficulty Radar

Based on recent AI-sourced data.

Meet Your Interviewers

The "Standard" Interviewer

Senior Engineer

Focuses on core competencies, system constraints, and clear communication.

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Unwritten Rules

Think Out Loud

Always explain your thought process before writing code or drawing architecture.

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