System Design Sheet

Meta System Design Interview

Top system design questions frequently asked in Meta interviews. Master these to clear the system design round.

Overall progress

0/111 solved

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easy0/11

medium0/54

hard0/46

0/111

Solved

CategoryCompanyDifficultyStatus

Web Services

0/2 solved

Status	Star	Problem	Difficulty	Notes
		Design a URL Shortener (TinyURL / Bit.ly) Asked by:GoogleMetaAmazon+3 more	easy
		Design an Online Judge System (Leetcode) Asked by:LeetCodeHackerRankGoogle+1 more	hard

Infrastructure

0/4 solved

Status	Star	Problem	Difficulty	Notes
		Design a Unique ID Generator (Twitter Snowflake) Asked by:TwitterMetaMicrosoft+1 more	easy
		Design a Notification System (Push, Email, SMS) Asked by:AppleMetaAmazon+2 more	easy
		Design a Distributed Cache (Redis / Memcached) Asked by:TwitterMetaRedisLabs+1 more	medium
		Design a Distributed Coordination Service (ZooKeeper) Asked by:GoogleYahooTwitter+1 more	hard

Storage

0/3 solved

Status	Star	Problem	Difficulty	Notes
		Design a Key-Value Store Asked by:AmazonGoogleMeta+1 more	medium
		Design a Social Graph Store Asked by:MetaLinkedInTwitter+1 more	hard
		Design a Relational Database (PostgreSQL) Asked by:GoogleAmazonMicrosoft+1 more	hard

Messaging

0/1 solved

Status	Star	Problem	Difficulty	Notes
		Design a Real-Time Chat Application (WhatsApp / Slack) Asked by:MetaSlackMicrosoft+1 more	medium

Search

0/2 solved

Status	Star	Problem	Difficulty	Notes
		Design Google Typeahead / Autocomplete Asked by:GoogleMicrosoftAmazon+1 more	easy
		Design Quora (Q&A Platform) Asked by:QuoraPinterestGoogle+1 more	medium

Realtime Systems

0/2 solved

Status	Star	Problem	Difficulty	Notes
		Design Live Likes & Reactions Asked by:MetaByteDanceTwitter+1 more	medium
		Design a Live Comments System (like Facebook Live / YouTube Live) Asked by:MetaGoogleTwitch+1 more	hard

Social

0/8 solved

Status	Star	Problem	Difficulty	Notes
		Design a Timeline and Tweet Service (Twitter) Asked by:TwitterMetaLinkedIn+1 more	easy
		Design Instagram (Photo Sharing + Social Features) Asked by:MetaPinterestSnap+1 more	easy
		Design a News Feed System (Facebook / Instagram) Asked by:MetaTwitterLinkedIn+1 more	medium
		Design a Threaded Discussion Forum (Reddit) Asked by:RedditMetaGoogle+1 more	medium
		Design Ephemeral Stories (Instagram Stories) Asked by:MetaSnapLinkedIn+1 more	medium
		Design a Follower/Following System Asked by:MetaTwitterLinkedIn+1 more	medium
		Design a Mentions & Tagging System Asked by:MetaTwitterSlack+1 more	medium
		Design TikTok (Short Video Platform) Asked by:ByteDanceSnapMeta+1 more	hard

Media Streaming

0/1 solved

Status	Star	Problem	Difficulty	Notes
		Design a Live Streaming Platform like Twitch Asked by:AmazonGoogleMeta+1 more	hard

Geo Location

0/1 solved

Status	Star	Problem	Difficulty	Notes
		Design a Proximity Server (Yelp / Nearby Friends) Asked by:UberLyftGoogle+2 more	easy

Data Analytics

0/4 solved

Status	Star	Problem	Difficulty	Notes
		Design a Trending Topics System Asked by:TwitterByteDanceMeta+1 more	medium
		Design Top K Most Shared Articles Asked by:TwitterMetaLinkedIn+1 more	medium
		Design Like Count for High Profile Users Asked by:TwitterMetaByteDance+1 more	hard
		Design a Real-Time Bidding System (Ad Tech) Asked by:GoogleTradeDeskMeta+1 more	hard

Observability Devops

0/1 solved

Status	Star	Problem	Difficulty	Notes
		Design a Feature Flag System Asked by:LaunchDarklyNetflixMeta+1 more	medium

Security Trust

0/1 solved

Status	Star	Problem	Difficulty	Notes
		Design a Content Moderation System Asked by:MetaByteDanceGoogle+1 more	hard

Machine Learning

0/2 solved

Status	Star	Problem	Difficulty	Notes
		Design an A/B Testing and Experimentation Platform Asked by:NetflixMetaOptimizely+1 more	hard
		Design an Ad Click Prediction System Asked by:GoogleMetaTradeDesk+1 more	hard

Ai Applied Systems

0/1 solved

Status	Star	Problem	Difficulty	Notes
		Design an LLM Chat Application (ChatGPT) Asked by:OpenAIAnthropicGoogle+1 more	hard