Hiring and interview process is clearly described in the great careers website hey have. It involves on-line application, on-line numerical test and assessment centre in the office (case study, presentation, group exercise and two interviews). The longest it takes to be invited to the AC after application. Be patient.

Hirvue interview. Get an overall sense of who you are, if you're interested in financial markets, why it is that you want to work at JPM and how you would be beneficial in helping the company and team respectively.