I applied through university. The process took 4 weeks. I interviewed at Georgetown University
Interview
When applying on the website, you need to provide transcripts, relevant projects, awards, and understanding of relevant courses. Then the professor will arrange an interview. During the interview, some questions about the course were asked.
I applied through university. The process took 3 days. I interviewed at Georgetown University (Washington, DC) in June 2022
Interview
There was no interview process - I was offered the position by my school's administration upon request from the professor. Selection is primarily based on success in the class/subject being taught.