Meta Software Engineering interview questions

There was one coding challenge and two phone interviews. The problems were not exceptionally difficult, and followup after interviews were very prompt. Whole process took about a month, perhaps a bit more if you have more space between interviews.

Contacted by recruiter in the fall. Next came one OA given by Code Signal. Did well but heard it wasn't necessary to pass all test cases to be considered for next round. Two more technical rounds followed by an email 3 days later regarding their decision. No behavioral part.