GTM Buddy AI/ML Engineer interview questions

1 difficult ml assignment which took a weekend to complete. 3 technical rounds and 1 hr round combined with interview with co-founder. They took three rounds of 1 hour interviews based on your assignment, dsa, sql and ml algos. after all that and a hr round they take zero selects from our college. company is interviewing just to waste time and look good to investors. on top of that there's zero communication from the company after the final round, we have to just assume we've been rejected since they don't communicate with the college properly.