Goldman Sachs Software Engineer - Java Developer interview questions

basically, not too hard, no system design, just discuss my previous project and some java basics. 3 rounds, each has half an hour. first-round ask some questions for my resume, second is leetcode, 3 is some java stuff.

terrible interview experience. Recruiter replies when they want. They can leave you hanging for weeks. made it to onsite but then my 3rd interview was cancelled for no reason. No information about what the interview will entail... very unprofessional people