Notification Service

mediumOpen designCommonly asked~45 minHLD roundSDE-2 and upAmazonUberSwiggyRazorpayFlipkartQueues & AsyncResilience

The question, as asked

“We need to send notifications — push, SMS, and email — across the company. Design that service.”

Your answer, first

Commit something before anything unlocks. Saved on this device as you go.

0 charactersExpand for room to draw

Worked answer in progress

This one is listed because it comes up constantly — the three-depth answer, follow-ups and red flags are being written. Attempt it above anyway; that part works, and the guides below cover the ground the model answer will.

Go deeper