The interview process was very lengthy. I was first contact about a phone interview that took almost 45 minutes. After that, i had 2 more phone interviews that each took about 30 minutes. The phone interviews felt pretty casual and they seemed more interested in my as a person than my resume. After the 3 phone interviews i was invited for 4 face to face interviews on-site. The on-site interviews took about 3 and a half hours and i met with 2 of the people i had alreayd had a phone interview with. I meet with all 4 people back-to-back. Shortly afterwards i was invited to write a letter to the CEO in an attempt to get a final interview. I sent the letter and was declined an offer a few days later.