This interview process was quite extensive over the course of 8 weeks, and involved conversations with 7 people as well as a take home case exercise and at least one on-site case.
I've been sitting on writing this review for a number of reasons. Overall, I thought the questions were thoughtful, well-structured, and a good process to find the right candidate. The process began with an initial phone screen by the recruiter, and was blocked off for 30 minutes. Following that I was sent a take home case exercise which I would have 24 hours to complete. I appreciate that the recruiter asked me when would be a good time to send the case, and she also advised that candidates typically spent 6-8 hrs to complete it. While I have done many a case interview, and many take-home case interviews, I have never had a case interview that took up so much of a candidate's time. Additionally, the case was so unstructured ("based on the data attached, make some recommendations for our business"), that theoretically I could have spent even more hours developing my response. I think it would have been appreciated to have some additional guidelines to help candidates better use their time, such as 'please submit a deck of no more than 9 slides'. This, along with additional data points I'll share below, did not make me feel like DD respected my time as a candidate.
The following week after my case was reviewed I was invited to have to video chat interviews with other S&O Managers/Senior Managers. Each interview was blocked for 30min. One of these interviews was pretty heavy on the 'what would you do given X-type of scenario', where the scenarios were all relevant to the DoorDash business. the other interview was a typical behavior interview, with 'tell me about a time when' questions.
After that round of interviews, the following week I was invited in the office for an on-site. The on-site interview consisted of one in-person interview, and two video chat interviews with team members located in different regions. All of these interviews had case-like elements to them, focusing specifically on the needs of the particular vertical I was interviewing for.
The next week I was told that I would be progressing to the final stage which consisted of an interview with the Head of S&O. This was again a 30min video chat interview, and was solely focused on questions of 'why DoorDash' and 'why this role'.
Following this interview I was told that I would hear back from the team by a particular date (about a week later). When that day came and went, I waited an additional 2 days before sending a follow up email. Once I sent the email, I received a three-sentence long email rejection.
My biggest frustration with this process was that after seemingly making it to the final round, I received a brief rejection email on a Friday night from the recruiter. Given that I had spoken with 7 people over the course of two months, I was disappointed to not receive a phone call to go through specifics of why I was not a good fit for the role. I replied to the recruiter and asked for more specific feedback given the number of people I had spoken with. Once again I received a three sentence response, with one line as to why I was not the right candidate. Overall it felt like after dedicating weeks of my time to DoorDash, they couldn't bother to give me the professional courtesy of giving specific, actionable feedback as to why I wasn't the right candidate.
So the tl;dr - thorough process, but not respectful of your time as a candidate. They get a lot of applicants and they treat it as a privilege for you to be interviewing with them, not for them to be interviewing you. I wish I had trusted these Glassdoor reviews a little bit more closely, because now I just feel like I wasted a ton of time to not even get any feedback on how I could further develop as a professional.