It seems like they're just looking to waste people's time.
I received a call from a recruiter who made it a point to mention how busy he was calling all these candidates. We spent 30 minutes going over the job again and answering mostly irrelevant questions.
A day later, I received an email stating that I wasn't good enough for an interview.
Perhaps if they filtered people's resumes beforehand, they wouldn't have to spend so much time wasting candidates' time on phone calls.
How do you debug a problem?
The following metrics were computed from 7 interview experiences for the Slack Software Engineer role in Canada.
Slack's interview process for their Software Engineer roles in Canada is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for Slack's Software Engineer interview process in Canada.