Meta Machine Learning Engineer interview questions

A recruiter first did a screening via phone call then scheduled a technical interview where there were two technical problems to solve. Two medium level LeetCode style coding questions. The interviewer was kind and helpful.

Asked an easy and a medium OA question. This was following an initial intro. The first round is just something from meta tagged questions on leetcode with a twist. The second one is an onsite with multiple such questions and a system design round based in ML and a behavioral.