CGI scheduled the interview for 30 minutes and there was only one interviewer. He initially asked basic questions about background and experience. He explained about the company and was open to questions

Was super laid back and casual, the interviewer was super nice! Still had typical interview questions (describe a time where..., etc) but overall pretty stress-free first-round interview. Lasted about 40-45 minutes as the interviewer was very conversational as well. Only advice I can give is to be personable and have a conversation.

Applied online, was told to connect with a recruiter at my university's job fair. They forwarded along my resume. There was a phone interview over Handshake. There was another interview with 2 parts (a technical and a personal) a few weeks later. The interviewer was around 10 minutes late with no communication which threw off the second interview. There was also supposed to be a Q&A the same day, but it got rescheduled to several weeks later. There was very little communication unless I initiated it. The whole process felt very unprofessional.