The interview is indeed a pentathlon as described in other reviews. Some preparation is required for the logic test. Having experience with a bit of assembly I found this to be okayish, nonetheless, it took me a whole hour. Behaviour interview went on for another 1 hour, it was basically a long chat about past projects and the key points of Ocado Technology. The CFC Tour was interesting but nothing spectacular, I believe they also want to see whether interviewees are actually interested in the business operation. Lunch was literally 30min, as soon as I finished lunch I was taken to the pair programming interview, no time for coffee. Pair programming interview was also okay, I managed to get the code up and running, I believe this is very simple for someone with experience in java. Unit tests were failing, had to write code for unimplemented functions. The interviewer will ask questions on why certain design patterns were implemented. After we managed to get the code working we moved into optimisation and how the code can be optimised (I used the whiteboard). Technical interview was about Java, some CV questions on past projects and then code review, there was also a whiteboard question on finding the longest palindrome in a string but we did not have time. Final interview with head of team was a very nice chat and we went on for about 1 hour and a half. Overall I thought the interview went very well but I was informed I wasn't what they were looking for technically.