OpenMarket Software Developer interview questions

Had a screening with the recruiter and then a phone interview with one of the software engineers. The phone interview consisted of conceptual programming stuff such as OOP, SQL, and coding in which you would verbalize how you would do it over the phone. I was advanced to the on-site. It was a 5 rounds of interview with many different people and teams in a span of 4 hours. 2 of the rounds were technical white boarding stuff. It wasn't too hard, just practice leetcode easy/medium questions. I left the on-site feeling good but ultimately sent me a rejection saying that they decided to pursue other candidates. The thing I will note is that the recruiter was really hard to get a hold of. I would send an email and wouldn't get a response in like a week.

1 phone screening, 2 technical phone interviews, 1 onsite interview of 5 rounds. 2 technical phone interviews with OOP questions. They explained me the recruiting process from the beginning and after the onsite interview they called my after 2 weeks with the result. the onsite interview was not intermediate level of difficulty and all employees were really kind and communicative.