There were 4 stages to the interview 1 technical interview with 2 senior staff 2 semi technical and experiences based interviews with senior employees in the UK and USA 1 informal interview with a few experience based questions

First interview was a brief phone call, then the second interview was supposed to be a three-person interview. At the end of the interview with the first interviewer, the second one said there was a business emergency and that the third wouldn't make it, and that they would reschedule if they felt the interview with the first interviewer was sufficient. A recruiting company helped arrange the interview. I also read another job interview on Glassdoor of something similar that happened to another candidate. The first interviewer appeared sleepy or disinterested halfway through. When I gave a few different examples to one question, the interviewer remembered only one example which is why I didn't get prompted for another interviewer; the interviewer did not elaborate or ask a follow up. Second interview was very unprofessional and was a waste of time.