Pretty unprofessional throughout the process. After applying online, I received a Google calendar invite for an interview with the recruiter. There was no other message accompanying this invite, but I was excited to speak about the opportunity. Just before that interview was supposed to happen, the recruiter sent an email to say that another meeting came up and asked for my availability for a day later that week. I provided that availability, and when that day came around the recruiter asked for my availability to speak the following week instead. I provided that availability, and the newly discussed day came and went without any contact. I sent another follow-up email that the recruiter did not respond to.