I interviewed with Facebook in Feb'15. I first had a brief screening with a recruiter, followed by two phone interviews, each 45 minutes long and then an onsite with 3 back to back interviews each 45 min long. I had applied to FB directly and got a call from the recruiter. The recruiter was super helpful throughout each step of the process. In the initial call, he asked me basic questions about my previous job and why I wanted to join Facebook. Phone Interviews: As many have already mentioned, FB PM interviews fall into 3 categories: 1. Product Design (PD), 2. Product Sense (PS) and 3. Leadership&Drive (LD) interviews. My first phone interview was PD interview where the interviewer stated by asking which feature I was most proud of. Then he followed up with how would you improve that feature. Then he asked me how would I design FB for blind people. Lastly, he invited me to ask few questions of him. My second phone interview was PS. Here FB is trying to get a sense of how good you are at understanding metrics and making tradeoffs amongst different metrics. My first question was if you are the PM for FB Pages, then how would you decide what goals and roadmap to have 1 year out. Then the interviewer asked me how would I do it for 50 years out. He also asked me to go into some detail of why I chose the metrics that I chose and how would I improve them (roadmap part). Next, he asked me the following question: Let us say you are sitting with a mobile analyst whom you can ask any question. You are looking at DAU data across the world and notice that there has been a jump of 5% compared to yesterday in Indonesia. What would you ask the analyst? Lastly, I was given 15 min to ask questions. This interview lasted almost 70 min though it was supposed to be for 45 min. Both interviewers guided me / gave me hints when I got stuck or asked relevant questions for solving the problems given to me. After the phone interview, recruiter called up after 3-4 days to let me know that I have moved to onsite round. He also gave me feedback on what I did well on and what needed improvement to succeed in next round. This was super helpful as I focused my energies on addressing the areas for improvement. Onsite Interview: I had 3 onsite interviews, each 45 min long, starting at 10am. In each of the interviews, there was a shadow interviewer too, so in all, I met 6 people during the interviews. Shadow interviewers decision/vote does not count in the hiring process, I was told. First was PD, followed by LD and lastly PS. PD: What app FB should build next? How would you improve a FB app of your choice. I had a really good discussion with PM on all the questions. PS: I do not remember the details of this interview except that I did not do it so well. LD: This was behavioural interview with examples from my previous job. Here they are looking for how self aware you are, what is your leadership style, how do you handle failures and how good are you at accepting mistakes. After the interviews were over, another FB PM took me to lunch (while my interviewers met to discuss if they needed a 4th interview). Recruiter had told me that sometimes when they want to dig deeper into anything, they might schedule a 4th interview. The PM who took me to lunch had 4 interviews. Thankfully, I did not have 4th interview. All the interviewers were very courteous, down to earth and I had a very pleasant experience. Recruiter call me about 5 days later to let me know that I had the offer. He also gave me feedback on what went well and what didnt (PS). Focus on following: 1. Tie everything back to FB's vision. 2. Always start with goal and user personas, followed by defining needs/pain points and then feature design. 3. I practiced/'solved' all the questions listed on glassdoor FB PM interviews, which helped me immensely. While almost all questions were new, but the pattern was same. The more you practice the questions the better you become at thinking on your feet during the interview and following the PM thought process without much stumbling.