Went through a 2 round interview, 1st round was a 1 hour coding test with a team member, 2nd round was 1 week later and a 2.5 hour interview broken into 3 sections. First section was a behavioral interview by HR, second section was a coding test by one of the team members, third round was a systems design interview by another team member where you are asked to explain how you would design a trading system.