Atlassian

Design a Multi-Tenant Tagging System

Design a Rate Limiter with Variable User Quotas

Also asked at Amazon, Google +2

Design a Ratings and Reviews System

Also asked at DoorDash

Design a Trending Content System

Also asked at Figma, Meta

Design a Web Crawler

Also asked at Google, Meta

Design an Authorization System (RBAC + Resource-Level)

Also asked at Apple

Design Jira

Design Snake Game

Find the Width of Columns of a Grid

High-Access Employees

Lowest Common Ancestor of a Binary Tree

Also asked at Amazon, MongoDB +1

Make Lexicographically Smallest Array by Swapping Elements

Maximum Good Subarray Sum

Maximum Square Area by Removing Fences From a Field

Meeting Rooms II

Also asked at Roblox, Snowflake +4

Merge Intervals

Also asked at Amazon, Apple +9

Minimum Cost to Convert String I

Minimum Cost to Convert String II

Minimum Time to Visit a Cell In a Grid

Number of Possible Sets of Closing Branches

Recommendation / Ranking System

ML System Design · Also asked at Airbnb, Amazon +4

Slack-like Chat System

Also asked at Microsoft, OpenAI

Smallest Missing Non-negative Integer After Operations

Text Justification

Also asked at Airbnb, MongoDB +3

Verbal Arithmetic Puzzle

Word Search

Also asked at PayPal, Reddit +3