I applied online. The process took 4 weeks. I interviewed at DoorDash in Apr 2022
Interview
The first was a technical screening with a recruiter. The second was a live coding challenge with a few members of the Data Science team. The questions were all in SQL and weren't very complicated (using CTEs, joins, subqueries, windows functions). Unfortunately for me, the interviewers were not native English speakers and were focused on my code matching theirs; not that the end results were the same.
Interview questions [1]
Question 1
3 people ordered food from 5 different restaurants. What was the third fastest delivery for each person?
The recruiter reached out through LinkedIn. First round was an interview with the hiring manager, then a technical interview including 4 sql questions and one case study in one hour. After passing this step, I moved to the onsite which included 3 case study and a meeting with XFN.
Interview questions [1]
Question 1
What does this sql code do? and if we want to change it to monthly what should we do
I applied through an employee referral. I interviewed at DoorDash (New York, NY) in May 2026
Interview
The interview process was first a recruiter screen, then two screening interviews with SQL and a case study, then 2 case studies, one hiring manager interview, and 1 cross-functional partner interview. These interviews are similar to what I would expect for data scientist interviews, but they aren't layups. I expected to be ready after acing the screens + (in my opinion) one of the case studies. But then in one of them they were looking for me to use some concepts I wasn't familiar with, so I bombed it and spent most of the time jumping around to adjacent topics that were similar but evidently not as good. They're pretty quick with the interview process, and I felt they were professional. I just wish it had gone better
Interview questions [1]
Question 1
How would you measure the impact of launching the ability for Dashers to use bicycles to deliver, instead of just cars?
I applied through an employee referral. I interviewed at DoorDash in Jan 2026
Interview
referred by a friend, and had the 1st round of interview consisting of 30-min case + 30min coding . The case question is not hard with pretty vague, but they do care a lot on how to translate the solution into technical solutions
Interview questions [1]
Question 1
How to evaluate bike delivery as a new dasher type?