System Design Interview Practice

Practice for System Design Interviews step-by-step with AI powered evaluation and feedback

12 sections55 problems

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Difficulty:

#	Section / Problem	Difficulty
1	Basic Questions(3 problems)
	Design a URL Shortener	easy
	Design Pastebin	easy
	Design a Rate Limiter	medium
2	Real-Time Communication(5 problems)
	Design WhatsApp	medium
	Design Slack	medium
	Design Live Comments	medium
	Design Google Docs	hard
	Design Zoom	hard
3	Social Media Systems(6 problems)
	Design Instagram	medium
	Design Facebook News Feed	medium
	Design TikTok	medium
	Design Reddit	medium
	Design Tinder	medium
	Design Likes Counting System	medium
4	Media Streaming & Delivery(6 problems)
	Design Spotify	medium
	Design YouTube	medium
	Design Netflix	medium
	Design Google Drive	medium
	Design Gmail	hard
	Design Twitch	hard
5	Location-Based Services(5 problems)
	Design Airbnb	medium
	Design DoorDash/Swiggy	medium
	Design Tinder	medium
	Design Uber	hard
	Design Google Maps	hard
6	Search & Aggregation Systems(5 problems)
	Design Search Autocomplete	easy
	Design News Aggregator	medium
	Design a Web Crawler	medium
	Design Google Search	hard
	Design Ad Click Aggregator	hard
7	E-commerce & Marketplace(6 problems)
	Design Amazon E-commerce	medium
	Design Shopify	medium
	Design Airbnb	medium
	Design Flash Sale System	hard
	Design Online Auction System	hard
	Design Movie Booking System	hard
8	Payment & Financial Systems(3 problems)
	Design Payment System	medium
	Design Digital Wallet	hard
	Design Stock Exchange	hard
9	Distributed Infrastructure(11 problems)
	Design Load Balancer	medium
	Design API Gateway	medium
	Design a Rate Limiter	medium
	Design a Notification System	medium
	Design Key-Value Store	hard
	Design Distributed Cache	hard
	Design a CDN	hard
	Design Object Storage (S3)	hard
	Design Message Queue	hard
	Design Time Series Database	hard
	Design Distributed Locking Service	hard
10	Counting & Ranking Systems(3 problems)
	Design Likes Counting System	medium
	Design Real-time Leaderboard	medium
	Design Top K System	hard
11	Asynchronous Systems(4 problems)
	Design a Notification System	medium
	Design Job Scheduler	medium
	Design CI/CD Pipeline	medium
	Design Monitoring & Alerting System	medium
12	Specialized Systems(3 problems)
	Design LeetCode	medium
	Design Calendar System	hard
	Design Online Chess	hard