It was professional for the most part. There was a technical test. Three people interviewed plus two phone interviews. I was given a technical test and some problem solving questions.

Process took about 2 months. Phone screening with recruiter covering basic information and then an online coding assessment for skill check. And then a phone interview with hiring manager followed by a technical interview with a senior team member via video call. After this followed on-site interview with 2 VPs and another senior member of the team. After a bit of wait, was followed up with another video call interview for deeper technical assessment.