My first round interview consisted of two 30 minute interviews with two panels of junior team members. I was asked a couple technical questions but not as many as I expected and also a brain teaser. Mainly, I was asked fit questions. It was more of an open discussion than being asked specific questions. The team members were very friendly and didn't put me on the spot too much. I would suggest knowing the role and company well prior to the interview and also expect to talk about areas of your CV.