There are a lot of stages I only got the first interview stage and haven't heard back since. The online assessment is quite straightforward but I was not ready for the first interview. It was only a phone call supposed to be 30 mins but stretched over to 1 hour, I would highly recommend revising some key topics as although its a competency interview a lot of technical aspect is already being tested on - these included a detailed understanding of waves and interference and how the CPU's worked in general. The guy I spoke to was Andrew, nice lad but very tough.