Coach note
System-design questions are about the trade-offs you make when no answer is obviously right. Interviewers want to see scope, the bottleneck you pick, and the rejected designs you can articulate.
System design · Api Design
Design the API and back-end for a notification service that fans messages out via email, push, and SMS, respecting user preferences.
Type your answer
0of ~220 wordsAbout a minute spoken
Voice isn’t supported in this browser — type your answer in the box.
Create a free account to get more critiques.
Your answer appears here as you speak.