Let me start by saying that as many times I have read about poor interview experiences, unprofessional behavior, and such during the hiring process, but I took it with a grain of salt, assuming the review may have been biased because someone didn't get a job. I'm sure some will look at my review in the same light. Things started off well enough - I had a good call with the recruiter that resulted in a one-on-one with the hiring manager. My perception was that things went well there too - and I actively solicited feedback during the call about how things were going, whether there were any questions remaining that I could answer, if there was any reservations with respect to my qualifications or fit at Slack or for the role and the response was that I was "a great candidate." My understanding was that there would be internal discussions and that I could expect to hear back in a couple days to schedule the next interview round. And I never heard another thing from them. While they have not responded, for my part, I sent a thank you/follow up email the night of the one-on-one to the hiring manager. I sent a follow up email to the recruiter the following week to inquire about next steps. Two weeks later, I emailed both together to again thank them for their time and express my continued interest. There hasn't been so much as a form email rejection. To say that I'm disappointed is an understatement. This is well below the expectations of professional courtesy that should be a hallmark for a company like Slack.