Facebook’s interview has 4 major aspects
A review of past work when you go over 2-3 projects in detail. You should prepare a slide deck to have structure in your presentation. A tip I found helpful is to start with the final product (final designs and metrics) and then go backwards as the interviewer asks follow up questions. Do not go into detail for everything and pick the most important details. I like to focus on points where key decisions were made.
You must start with a framework so you don’t miss aspects of the critique. Be sure to:
-cover good and bad designs (suggest improvements for the bad)
-consider all design and product perspectives
-demonstrate multiple layers of thinking
You will be given an open ended prompt and develop a wireframe solution. Again frameworks are important for this interview—especially with limited time. You can start off with good structure by dividing your whiteboard into different sections (context, problem, solutions). You should be constantly asking questions to clarify and stay in sync. Checking in frequently is always good to make sure you are on the right track.
Background and behavioral interview
Questions will gauge your collaboration, decision making, and introspection skills. I practiced using Candor’s questions and got a few of the same ones during my actual interview. I felt very prepared for the interview and believe my confidence ended up getting me the job! Questions here: https://candor.co/interviews/product-designer/facebook?tag=behavioral