IMC Trading Software Engineer - New Grad interview questions

First stage was a 90 minute HackerRank with 2 questions. This was followed by a one-way video interview which consisted of 10 questions, including technical trivia-style (where you had ~15 seconds to think of an answer) and behavioral questions. Overall I never got the chance to talk to anyone working at the company as the whole process up to this point was automated.

Completely appalling experience, do not recommend it at all! Coding Challenge -> Recruiter Phone Call -> Video Interview Did a HackerRank with 2 questions: Knight's Tour Problem and Implement a Stack with Increment Option. Next step was 15 min phone interview with recruiter, motivational and behavioural. They advanced me to the next one, a 45 min video interview. In the email they said we will go through my CV and the HackerRank I completed and, to my surprise, when the time for the actual interview came, they only asked hard theoretical true/false + reason questions which I wasn't prepared for. I told the interviewers what happened, they didn't even take responsibility for this and simply said "there must have been some miscommunication". Also, the interviewer was bragging about his previous start up and had an "I don't want to be here - you seem dumb and are wasting my time" attitude during the interview. Lots of red flags about the company here, miscommunication between departments, people not taking responsibility for mistakes, arrogant employees etc.