Referred to interview here. Had a 30 minute call with the CEO, who said I would know if I moved on within 24h and that we just needed to have engineering take a look at and approve the resume. Reached out the next day and was advanced to the next round. Scheduled for the Friday that week. Friday morning/last minute, interviewer cancelled. Rescheduled for the following Tuesday. Asked questions and studied for interview before and in between. Tuesday morning/last minute (again), recruiting cancelled the interview (again). Was told the CEO did not advance me and an error had been made by recruiting. CEO could have indicated a lack of fit during the initial call rather than suggesting the decision was gated on engineering approval. Recruiting had multiple touch points and a week to catch this. Apology was ungracious and was not signed off/closed by any person, just a blank line. I hope this is not an experience future candidates receive.

The first step was the phone call with the recruiter and then after that the second call was with one of the MLE Questions - 1 LC and 1 3D Algorithm