Facebook interview questions mainly consist of four categories: product and business sense, technical data analysis, statistics, and modeling.
Jay has worked in data science in Silicon Valley for the past five years before starting Interview Query, a data science interview prep newsletter.
The Facebook interview consists of multiple technical and business case questions, heavily focused on applying technical knowledge to business case scenarios. Facebook data scientists are expected to work cross functionally and explore, analyze, and aggregate large data sets to provide actionable information.
The technical screen will generally consist of one product question and one data analysis question. Be sure to prepare for both in order to move on to the onsite.
Q1: Facebook composer, the posting tool, drops from 3% posts per user last month to 2.5% posts per user today. How would you investigate what happened?