DoorDash Data Scientist, Analytics interview questions

Referral first call with the team hiring manager second technical call (coding + Product Case) I then received an automated email mentioning I was rejected. The recruiter, scheduler and hiring manager ghosted me and never answered afterwards or sent an email. This is the way they treat potential candidates referred by they own employees. No decency, don't waste your time and efforts, recruiters are just going to disappear if you're not considered after a certain stage of the process.