One phone screening. easy question. 3.5 onsite interviews. behavioral interview has no weight. SQL and Algorithms writing . Facebook does not want you to answer the questions correctly and verify them with test cases. They just rush to questions and counting on how many questions you can answer. In the beginning of interview, they would tell you that it will be like conversation but at the end you will realize that they are rushing through fake conversation and hold conversation against you. Requiter had no courtesy to respond after interview about when would they inform me. He informed 8 days later after two follow ups.