The first round was a phone interview with a recruiter. They asked about your interests and salary requirements.

An online coding test was administered, and you had unlimited time to work on it. This was to be completed and reviewed by the second interview.

The second round interview was another phone interview with a software engineer from Wayfair. They reviewed the position requirements and your previous coding test, and asked a couple more coding questions.

Given a two-dimensional array of strings, return all possible combinations of words.

Example: ['grey','black'] ['fox','dog'] ['jumped','ran','growled']

Return: grey fox jumped grey fox ran grey fox growled black fox jumped ... black dog growled

Given a string of brackets, return if the string is valid or not. A string is valid if all opening brackets have matching closing brackets.

Example: {[()]} = valid {()[]} = valid {[} = invalid

Given an array of integers, change the order of the integers so negative numbers appear first, then positive numbers. Do not change the relative order of the integers.

Example: 1,-5,-1,3,23,-12 => -5,-1,-12,1,3,23