After applying online, a recruiter reached out to me to schedule initial screening process, which is a short interview with the recruiter, her self.
I booked a time slot, taking an hour off my current job (with the same title btw), and spent a whole week preparing for upcoming interviews.
But, right at the scheduled interview time, she emailed me with silly excuses to reschedule it. This is complete arrogance and lack of professionalism at Deliveroo's HR/Recruiting department.
I had actually read similar comments here describing the same issue, but I thought Deliveroo has already fixed such unprofessional behaviour.
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Other Data Scientist interview reviews for Deliveroo
HR call, then technical call with one data scientist about past projects and why Deliveroo, after that a take home test and 4 rounds of interviews: SQL, case study, cultural fit & take home test presentation
Interview questions [1]
Question 1
Why Deliveroo? and minimal unit of randomisation in A/B testing.
Straight forward process but very long and arduous with plenty of stages. I'd say it needs to be refined. Interviewers were very professional and rapport building was easy. I would suggest cutting down on the numerous steps in the interview
Very long process, 6 interviews and a take home task before being rejected. Brief of the task said don't overcomplicate it but the feedback I received was that I still didn't go into enough detail. So be prepared to spend a lot of time for the interviews. Generally friendly interviewers and easy interview questions, very straight forward standard a/b testing and causal inference questions. Despite this was rejected, would have brushed up on my domain knowledge in retrospect as I probably wasn't very clear answering causal inference questions to a product very different to my experience. The sql test was very easy and I completed all questions correctly, but got some negative feedback on this as I wasn't familiar with postgresql quirks around dates which they marked me down on.
Interview questions [1]
Question 1
standard a/b testing and causal inference questions