This was the most protracted interview process I'd ever encountered. Five interviews in total, including a 1 hour presentation I spent 60 hours working on. The entire process took 2 months, and at the end I was offered a role, only to then have it retracted due to a change in hiring structure from the US. At every stage the hiring team made all the right noises, only for it to be "just one more call" with "just one more person" as they kick the can down the road and waste time. The two things I took the most from this experience were: 1. If you're applying for a role outside of North America you need to be prepared for them to change direction at no notice. 2. The calibre of senior (director level) employees at RingCentral (in the UK at least) is laughable. Throughout the hiring process most are disinterested at best, and at worst they come across shy, awkward, and out of the depth. The takeaway there is you won't get mentorship, and you clearly need to be in the right cultural crowd to get promoted.

Applied online. Got call from recruiter. She was nice and asked all typical phone screen questions. Setup interview with hiring manager. It went well. Setup video conferencing interview with 3 others. They went OK. I connected well with 2 out of 3 interviewers. 3rd one seemed not interested in my profile.