Nimble(Israel) interview question
First interview - explain about a project you worked on in low level Second interview - design a whatsapp like app. Start by only solving it for two users, and then extend the solution to multiple users and groups. What will be the architecture differences.
Interview Answer
Anonymous
28 Nov 2024
Whatsapp design - 1. WebSocket communication between user and server, think about how that scales up 2. Decide which DB to use, how to generate the entities IDs, how to address groups later on in the second part of the drill 3. Suggest the actual messages will be stored as blobs on S3 or something like that