After I applied online for about over a month, I received the invitation to an interview. The first round of the interview is conducted via Skype. I prepared for the interview according to the other views here, and they are very helpful. After the interview, I received a request to work on a 10-page research paper in 48 hours, just like the others have said here. But the interviewer and the HR who was arranging the process with me are all nice and professional, responding timely.

Did three rounds of interviews– first with two Directors, second with two higher-ups, and last with the CEO. First interview was mostly about my research process and included a very simple Arabic test at the end (translating a paragraph from a news article). Second was a bit more difficult– one of the men was a bit aggressive and implied that my current role is mostly making coffees. Both ~45 min. In my final interview with the CEO, he was perfectly polite, but made it clear that he was looking for an ideological match as opposed to expertise/a particular skillset. He has a huge emphasis on neutrality and a deep distaste for any type of bias. The final email I received mentioned that in the end, they didn't hire anyone.