They Assess your CV. If suitable, next step is interview with Directors or Managers you'll likely be working under. Interview itself is fairly laid back, chat is to see if you know anything about the job and field. For example you should know what different securities are (equity, CFD, ETF, etc.) or what the difference is between debit and credits or what an accrual is. In other words, do you have a basic knowledge of Accounting and Finance. Didn't happen for me but have heard of a mini MCQ test being given but again just covering basic accounting and finance terms and principles.