I went through two technical phone interviews both lasting between 30-45 minutes. After completing both phone interviews successfully I was invited on site for an in-person interview which lasted pretty much all day. I was asked to prepare a presentation about my skill set then more one on one interviews

Had one phone screen, was called back a week later to schedule an onsite interview that took place three weeks later. Started the onsite with a tour, then group interview, which led into 5 1:1 interviews. Got an offer a few days after as they were looking to find someone to start immediately.