Casual but very accommodating, they provided a lot of insights on how they are working as a team and how they provide training and support for their new employees. They also set my expectations on what role I'll be working on and background on work setup as well as the team.

HR scheduled an interview, I went to their office on scheduled day, turns out the HR was on leave. Waste of my time. The HR was a red flag, everything about it was a red flag