The company's CEO asked unprofessional questions, such as whether I share expenses with my partner when discussing my salary expectations. During the third and final interview, he mentioned that he was unsure about hiring me because my cultural background is Spanish, as his clients are from America.
After that last interview, I researched on Glassdoor and read reviews from former employees accusing the CEO of allegedly being cruel to his staff by yelling at and insulting them. I wish I had read those reviews before wasting my time with three interviews.