Meta IOS Engineer interview questions

They do a phone screen Then ask you to come on site, where you interview several rounds of technical interviews. Takes pretty much all day. There are several algorithm type questions, then some project archityping

I interviewed at Facebook last year, and while I enjoyed my time on their campus, I wasn’t offered a position. The day consisted of five interviews in total, if I remember correctly—two kind of straight algorithm interviews, an iOS domain interview, an app-design interview where I had to design an app on the fly, and a system design interview. All interviews were on a whiteboard.