Netflix Software Engineer Interview Questions

You are given an integer array time of size n, where time[i] represents the time taken by the i-th process to send a notification to a single device. All processes start working simultaneously and ope

Online application -> HR contacted -> Asked about Faye Wong's culture and his proudest project. First round in-store interview -> Implement a key-value pair that can expire -> Follow-up question: How

Movie History Friends II ### The Challenge We have a record of movies watched by different customers. The list for each customer shows the movies in the exact order they watched them. In this proble

Meeting Rooms ## Problem Requirements You are given a list of meeting time intervals. Each interval has a specific **start** time and **end** time. Your task is to check if a person can attend all t

Design an Ads Audience Targeting System Design a system that lets advertisers upload lists of users. The system must group these users into segments and use them to target ads precisely. The system

Problem Requirements You are given a list of whole numbers called `nums`. Your goal is to check if any number appears more than once in this list. * If any number shows up at least twice, return `tr

Sorting Shows Based on User Preferences ### The Challenge Imagine you have an app that displays a list of TV shows. You need to write a program that sorts these shows based on what a user likes. The

Netflix Homepage: Removing Duplicate Titles ### The Scenario Imagine the Netflix homepage. It is structured as a vertical list of rows, which we call **shelves**. Each shelf holds a horizontal list

Longest Substring Without Repeating Characters ### Problem Requirements You are given a string called `s`. Your task is to find the length of the longest substring that contains no duplicate charact

Problem Requirements We need to build a data structure that keeps a history of songs listened to. Each entry must store the song name and the timestamp when it was played. You need to create a class

Countdown Latch ## The Challenge You need to build a **thread-safe counter**. This counter allows several threads to pause and wait until the count drops to zero. You must create a `CountdownLatch`

Design a Billing System for 300M Subscribers This guide explains how to design a billing system for Netflix. The system needs to handle monthly payments for 300 million users. It must charge users o

The Challenge: Parallel Courses You are given an integer `n`. This number tells you there are `n` courses you need to take, labeled from `1` to `n`. You are also given a list called `relations`. Ins

Building a Recursive Timer ## Problem Statement You need to write a function called `timer`. This function takes one input called `seconds` (a non-negative integer). The goal is to return a string t

Reconstruct Itinerary ## Problem Requirements You are given a list of airline `tickets`. Each ticket shows where a flight starts and where it ends, written as `[from, to]`. Your task is to arrange t

Versioned File System ## What We Are Building We need to create a **file system in memory** that handles **versions**. This system must allow standard operations like Create, Read, Update, and Delet

System Overview An Ads Frequency Cap system restricts how many times a user sees a specific ad within a certain time frame. This is different from a standard **Rate Limiter** because the **read and

Auto-Expire Cache ## Problem Requirements You need to build a **key-value cache**. This system must store data (key-value pairs) that disappears automatically after a specific amount of time. This p

System Health Monitor **The Challenge** You need to check the safety levels of a system. You are given an array called `errorRates`. The value at `errorRates[i]` tells you the error rate at time `i`

Number Pairs That Match Target ## Problem Statement You are provided with a list of integers called `nums` and a specific number called `target`. You need to find all pairs of numbers from the list