The process was extensive.
1. Two phone screens with HR.
2. An hour long phone call with a Team Lead.
3. I downloaded the software and did about 15 hours of technical exercises.
4. I presented my exercises to Alteryx personnel via webinar.
5. I had an hour long phone call with the Hiring Manager.
6. I went to the office and did almost 3 hours of in-person interviews with 5 or 6 people.
I received positive feedback throughout the process, being told I had some elegant solutions to the exercises, and the hiring manager told me he felt really good about my candidacy.
HR called me about a week after my in-person interview and told me I did not get the position, and said that there was "no specific feedback".
My three job references told me that they were never contacted by Alteryx.