I applied online. The process took 6 months. I interviewed at Penguin Random House (New York, NY) in Jun 2017
Interview
Multiple interviews. Met a variety of people and stakeholders from the assorted departments working in close quarters with the design department. Most questions were of the generic HR-driven variety. Largely this was a personality interview, with some experience questions peppered throughout.
The interview took place on time and was in a comfortable setting. the offices are nice and the people will speak with you. The overall interview process was not bad. In the end, I was pleased with the informative interview process.
I applied in-person. The process took 4 weeks. I interviewed at Penguin Random House in Mar 2015
Interview
It was about the writing. To see if it might be a good fit. Which it was. This is a personality driven process. So experiences are going to vary widely.