I apply through university. At that time there was about 20 job opening for intern. However, most of it has been filled already by their current co op which decided to extend their contract. I got interview about 1-2 weeks after the deadline. Interview at Dorval office with my direct supervisor. Interview is really casual. Supervisor really just wanted to know me better. He mostly ask question about my last work terms. I got the offer several days later. Nothing really complicated in the process. Most of the things are taken care by university (paper work, background check, etc)