Green Hills Software interview questions

It began with a 1.5 hour hacker-rank, followed by a phone call with the recruiter. After that, there was a 4.5-hour interview with one of their engineers, all in C or C++.

One HackerRank question, one 30 minute interview with someone from HR, one 1 hour technical interview with a manager, and then an onsite interview (Online during Covid). They gave you plenty of time to complete the HackerRank question.