Mostly asking about background, past projects, skillset, motivation, and technical questions related to facilities or process. The interview experience was pleasant and exciting. I did not recall if there was any "tell me about your..." type of questions, but I think they also asked about the leadership experiences as well.
It was held online, I interviewed directly with a subject-matter-expert and a supervisor of the department. There was only one stage of interview. I also had another interview with different department's supervisor.