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Changelog

Track all the latest content additions and updates to Hello Interview. We continuously add new system design breakdowns, deep dives, and learning materials.

September 9 - 15, 2024

4 updates

New Content

Introduction to the Behavioral Interview

Sep 12, 2024 by Evan King, Stefan Mai | Behavioral

How to Prepare for Behavioral Interviews

Sep 12, 2024 by Evan King, Stefan Mai | Behavioral

5 Keys to Staff-Level System Design Interviews

Sep 9, 2024 by Stefan Mai | Blog

Cassandra Deep Dive for System Design Interviews

Sep 9, 2024 by Joseph Antonakakis | Deep Dive

September 2 - 8, 2024

2 updates

New Content

Google Interview Process: A Comprehensive Insider's Guide

Sep 6, 2024 by K | Blog

Elasticsearch Deep Dive for System Design Interviews

Sep 5, 2024 by Stefan Mai | Deep Dive

August 5 - 11, 2024

3 updates

New Content

DynamoDB Deep Dive for System Design Interviews

Aug 6, 2024 by Evan King | Deep Dive

How to Prepare for System Design Interviews

Aug 5, 2024 by Evan King | Quick Guide

System Design common question walkthroughs

Aug 5, 2024 by Evan King | Quick Guide

July 22 - 28, 2024

4 updates

New Content

Design a Ticket Booking Site Like Ticketmaster

Jul 26, 2024 by Evan King | System Design

Design a URL Shortener Like Bitly

Jul 25, 2024 by Evan King | System Design

Design a File Storage Service Like Dropbox

Jul 23, 2024 by Evan King | System Design

Design Facebook's News Feed

Jul 22, 2024 by Stefan Mai | System Design

July 15 - 21, 2024

7 updates

New Content

Design YouTube's Top K Videos Feature

Jul 21, 2024 by Stefan Mai | System Design

Design a Dating App Like Tinder

Jul 20, 2024 by Joseph Antonakakis | System Design

Design a Coding Platform Like LeetCode

Jul 19, 2024 by Evan King | System Design

Design a Ride-Sharing Service Like Uber

Jul 18, 2024 by Evan King | System Design

Design a Messaging App Like WhatsApp

Jul 17, 2024 by Stefan Mai | System Design

Design a Local Business Review Site Like Yelp

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Jul 16, 2024 by Evan King | System Design

Design a Stock Trading Platform Like Robinhood

Premium

Jul 15, 2024 by Joseph Antonakakis | System Design

July 8 - 14, 2024

7 updates

New Content

Design a Collaborative Document Editor Like Google Docs

Premium

Jul 14, 2024 by Stefan Mai | System Design

Design a Fitness Tracking App Like Strava

Premium

Jul 13, 2024 by Evan King | System Design

Design a Distributed Cache Like Redis

Premium

Jul 12, 2024 by Evan King | System Design

Design an Online Auction Platform Like eBay

Premium

Jul 11, 2024 by Evan King | System Design

Design a Video Streaming Platform Like YouTube

Jul 10, 2024 by Evan King | System Design

Design a Distributed Job Scheduler Like Airflow

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Jul 9, 2024 by Evan King | System Design

Design a Web Crawler

Jul 8, 2024 by Evan King | System Design

July 1 - 7, 2024

4 updates

New Content

System Design Delivery Framework

Jul 7, 2024 by Evan King, Stefan Mai | Quick Guide

Design an Ad Click Aggregator

Jul 7, 2024 by Evan King | System Design

Design Facebook's Live Comments System

Jul 6, 2024 by Evan King | System Design

Design Facebook's Post Search

Jul 5, 2024 by Stefan Mai | System Design

June 10 - 16, 2024

1 updates

New Content

Kafka Deep Dive for System Design Interviews

Jun 12, 2024 by Evan King | Deep Dive

May 20 - 26, 2024

1 updates

New Content

Understanding the Differences between Meta's SWE Product Architecture and System Design Interviews

May 24, 2024 by Evan King | Blog

May 13 - 19, 2024

2 updates

New Content

Two-Pointer Overview

May 15, 2024 by Jimmy Zhang | Content

Two-Pointer Overview

May 15, 2024 by Jimmy Zhang | Content

April 29 - May 5, 2024

1 updates

New Content

Meta's Product Architecture Interview: How to Prepare

May 1, 2024 by Evan King | Blog

April 22 - 28, 2024

1 updates

New Content

System Design Interview Patterns

Apr 25, 2024 by Evan King, Stefan Mai | Quick Guide

March 11 - 17, 2024

2 updates

New Content

System Design Key Technologies

Mar 15, 2024 by Evan King, Stefan Mai | Quick Guide

Greedy Algorithms Overview

Mar 15, 2024 by Jimmy Zhang | Content

March 4 - 10, 2024

1 updates

New Content

Heap Overview

Mar 10, 2024 by Jimmy Zhang | Content

February 26 - March 3, 2024

1 updates

New Content

Binary Search Overview

Mar 1, 2024 by Jimmy Zhang | Content

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