I applied online. The process took 1 day. I interviewed at Purdue University in Jan 2025
Interview
there was no process, it asked to apply online and reach out to the professor, so I did so and there was no actual interview process. It was a matter of if the prof selected you for the role or not
The process was very simple. I have visited a professor whose fields I am interested in and asked for a open position. We just talked about GPA and performance on the class I was taking. and admitted to work as a TA.
It was 2 rounds of interview. One was a group interview with 3-5 people. The second was individual, and it went pretty smooth. I got an offer for the TA position.