DoorDash Interview Loops
DoorDash runs a short, sharp loop. After a recruiter questionnaire, often by email, there's a one-hour technical screen in two halves. Thirty minutes of SQL on a schema you can't run, then thirty minutes of a case about the marketplace. Pass that and the final loop is two or three case rounds, a conversation with a cross-functional partner, and the hiring manager. Rejections after the screen often come the same day. Everything at DoorDash is a marketplace problem. Customers, Dashers and merchants move at the same time. The cases ask you to pick a metric, design a test and explain a change with all three in mind. There's no separate statistics round. The statistics come up inside the cases, so practice saying the reasoning out loud.