Did 2, first with a talent acquisition staff, which was barebones and basic. Second with a manager, who was beyond rude and terrible at communication. They decided to ask for a formal case study presentation as part of a 30min intro call, with no previous advance notice either. I wanted to present one I had prepared for another interview, which he refused. He wanted and insisted to look at a project that was still under confidentiality, I tried compromising and showing them some general concepts, which they said they preferred, but at the end complained it didn’t show all the process they wanted to see. 

 On top of all that, their attitude and behaviour was beyond condescending, rude and unprofessional. 

 They’re such a mess that, after I emailed the acquisition staff to let them know I did not want to move forward with the process, they gave me two replies, the first, 2 days later, telling me they were not moving me forward with the process, shortly after, another email asking me why I didn't want to move forward with the process.