The first interview (1 hr) we talked about the job place and my experiences, except for one technical question at the end. I don't remember the exact question but it was something in the middle of linear algebra and statistics. The second interview (2 hrs) was entirely technical, about deep learning foundation, linear algebra, math, and optimization, followed by deep learning questions, a small coding exercise and the discussion of two papers. Most of the 2 hours has been dedicated to linear algebra and optimization.
