4 stage + presentation requirement. Initial interviews were standard and enjoyable. COnsisted of HR and Line manager for first 3 interviews. Final interview included a presentation and was conducted by same 2 previous interviewers plus a new participant, in this case COO. The new participant seemed to have a veto on the whole interview process and made the past 3 meetings pointless. I was told I'd hear the following day , but in reality I was left without any contact for 2 weeks. I finally received a rejection via email.