Meta Software Development Engineer SDE interview questions

2 Medium LC problem What is your strength/weakness diverse background & skillset how do you expect this role to help the team deal with the challenge？what motivated you to join the company and what do you enjoy most working here?

First round screen. Brief introduction at the beginning for like 5min. Interviewer asked about postorder traversal of binary tree in both recursion and iterative methods. Some followups on complexity analysis.