I applied through a recruiter. The process took 2 weeks. I interviewed at Deliveroo (London, England) in Apr 2019
Interview
- The first interview was a phone call with the technical recruiter, who described the role and had a relaxed conversation about my CV and what I'm looking for. The recruiter also sent me some preparation material to prepare for the next round.
- Next one was two 30 minute interviews in the office with a PM and a Data Scientist. Mostly asked about my experience with Data Science and Experimentation.
- Final one included 4 interviews (Behavioural Interview, Product Interview , Stakeholder Interview, Business Case Interview). Again, the recruiter really helped me prepare for all of these and all the interviewers were friendly and made me feel very welcome.
Interview questions [1]
Question 1
Describe an experiment you owned and how you communicated results to the stakeholders.
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
