Design a Chat App
People expect a message to arrive the instant it is sent, to survive their phone being off for a week, and never to go missing — on a connection that drops every time they walk into a lift.
How the round runs
Hard · 5 stages · 7 questions · 60 min
~8 min
Requirements Gathering
lists
~8 min
API Design
api rows
~28 min
High-Level Design
whiteboard
~8 min
Database Design
schema
~8 min
Deep Dives
whiteboard
Set up your round
Level
Interviewer
Duration
Mid-Level · Standard · 60 min