I applied in-person. The process took 2 weeks. I interviewed at McGill University (Montreal, QC) in Feb 2018
Interview
No specific interview. I was a PhD student under the same person, so there was no need for any interview whatsoever. Usually I think it will go through a selection process and the Professor will decide on who he or she wants to talk to
I applied online. The process took 2 months. I interviewed at McGill University (Houston, TX) in Nov 2017
Interview
phone interview about background and experience. Specifically asked about past finished projects shown on resume. Then asked about the experimental skills they preferred candidate to have, which I don't unfortunately. The interview was comfortable, but I am not a perfect matching for their position.