Meta Sr. Software Engineer interview questions

A rather long process, expect at least a week between interview portions. 'Phone interview' was done in person - was ninja interview - took 4 days for feedback and next steps took at least a week to plan Real interview consisted of 5 interviews plus a lunch that wasn't an interview. One week later I was told to immediately provide contacts from my current employer. 4 days later I was rejected.

I am a woman engineer with experience applying for a Senior Sw Engineer position. Recruiter contacted me initially. She was allowed me to postpone screen as needed, as I wanted to prepare a little more on the algorithmic side, and I did. I went in person rather than phone. The interviewer was nice and the problem was moderate to difficult (involving trees) for a phone screen. This was my first time resolving it. Although it took me some time, I did give a solution that the interviewer was satisfied with, we had time for questions, for finding out what he was working on at the moment. I got out feeling good and confident. I received a disappointing automatic message with rejection. I asked for feedback but did not receive it. I felt confused and upset that Facebook didn't give me a chance for on site. There aren't many women engineers in high tech, and walking on the floor at Facebook there is evidence there aren't there either. Given Sheryl Sandberg's vocal support of women and my satisfactory screen, I would have hoped that the company tries to do much more in their own backyward, to change the status quo regarding gender imbalance in predominantly male roles at Facebook.