The interview process was very extensive. The entire process took about 10 weeks from job application to resolution.
The entire process was not laid out in its entirety initially. I was first told to expect an HR screening interview and then 2 detailed phone interviews, plus a written exercise.
After the interviews, I was then asked to submit writing samples and to return the written exercise I was then sent. After submitting the written work I was asked to sit for another detailed phone interview. After the third interview, I was then asked to travel for an additional round of three more in-person interviews. After those interviews I was then asked to submit another written response.