The interview process began with a 90-minute OA that included two medium-to-hard algorithm questions. The format was very similar to what I had seen on Hack2Hire, which made it easier to prepare.

After passing the OA, I had a technical phone screen with one engineer. It involved one coding problem and follow-up questions on edge cases and time complexity.

I mainly prepared using LeetCode, Hack2Hire, and 1point3acres, which were helpful for understanding the style of Meta’s questions.

I had to solve a coding problem involving arrays.

I implemented an efficient algorithm and then walked through edge cases.

I also needed to explain the time and space complexity and justify my approach.