Meta | E5 | Warsaw, Poland

Meta | E5

Recently, I interviewed for the Enterprise Engineering Role at Meta. The recruiter indicated the final level would be either E4 or E5, depending on my interview performance.

The process consisted of five rounds.

Technical Screening

This round involved two problems:

1. Given a string, determine if it is possible to make it a palindrome by removing at most one character.
2. Given a list of coordinates, find the top-k coordinates with the shortest Manhattan distance from the origin (0,0).

The expectation was to clearly explain my thought process, write code (execution was not required), and explain the code with a dry run.

Coding Round 1

This round was similar to the previous one.

1. Given an array (e.g., [3,22,33,88]), output a string containing numbers not present in the array between [0,99]. If the length of consecutive missing numbers is greater than 1, compress it as "a-b." The answer for the example is "0-2,4-21,24-32,34-87,89-99".
2. Given a list of 0s and 1s (1 representing a workday and 0 a holiday), maximize the number of consecutive holidays by converting at most k workdays to holidays.

Coding Round 2

This round was similar to the previous one.

1. Given a tree, print nodes in a specific order: left nodes before right nodes, and for nodes at the same vertical level, prioritize the node with smaller depth.
2. Given a number, maximize it by swapping at most two digits.

System Design

Design an Instagram feed.

Behavioral Round

This round included questions about handling problematic colleagues, team pushback, a successful project, and managing missed deliverables.

The outcome was a rejection, attributed to a misalignment in the behavioral round, although my technical scores may have also been lower.