Meta Software Developer Internship interview questions

I don't have much to say as I've just went through the first step. But it was quite straightforward. The interview was in the phone, I was programming on a shared editor in whatever language I wanted. The Question required data structures understaning.

Me postule mediante un FB open event, muy rapidos en todo sentido, incluso en los resultados. Me dieron la entrevista unas semanas despues, pero no la aprobe. Muy amables en todo sentido. Tanto entrevistador como recruiters y organizadores