I had an HR phone call that consisted mostly of basic questions about my previous experience and why I felt I would be a good fit at Facebook.

At the end of the call, we set up an on-site technical interview. I had to postpone it for a while, but they were very helpful with rescheduling for a time convenient for me.

The technical interview went well. I was given a tour of the facility before sitting down with an engineer. The interview lasted around an hour.

I was asked a question about checking for palindromes and a question about graph traversal. I ran into some trouble with the graph traversal, which I eventually described to the interviewer correctly. However, I didn't have enough time to write it on the whiteboard.

I believe that's the reason I was told to get more experience and reapply in a few months.

None were really difficult or unexpected.