I applied through university. I interviewed at Wolfram Research in Feb 2014
Interview
A total of 3 interviews and assignment. I was interviewed by UX Director, UX manager and team employee. Each interview happened on a different day. The interview process was fairly simple and the interviewers were very polite and helpful.
Interview questions [1]
Question 1
Asked to create a presentation on how we could improve the UX of Mathematica Desktop IDE