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In this interview, Jacob (Dropbox Software Engineer) answers a system design interview question of designing Facebook Messenger, commonly asked in software engineering and technical program management (TPM) interviews.

Chapters -
00:00:00 Introduction
00:00:09 Question
00:00:15 Answer
00:00:39 Requirements
00:01:55 Design
00:09:05 Data types
00:11:46 Scale

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