My process was accelerated. 3 levels of interview: recruiter, SMD (designated by company to qualify candidate), in-office interview region lead, service line lead and account lead. I received an offer 48 hours later. 1 month for the whole process, beginning to end. Others go through more interviews, and process can last for months ( 6 - 8 for some).

I was told the interview process would go quickly and it was until it was handed to another recruiter. The interviews went well and they wanted to move me forward. The new recruiter was slow, sometimes wouldn't respond and then fell off the edge of the earth.