Twilio

Principal Software Engineer Interview Experience - Chicago, Illinois

June 1, 2022

Neutral ExperienceNo Offer

Process

The process was smooth, and feedback was also reasonably soon.

In the interest of time, I think a decent working solution should be considered acceptable.

The systems design is also subjective.

Questions

There were programming problems and a Systems Design question.

Interview Statistics

The following metrics were computed from 1 interview experience for the Twilio Principal Software Engineer role in Chicago, Illinois.

Success Rate

Pass Rate

Twilio's interview process for their Principal Software Engineer roles in Chicago, Illinois is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive0%

Neutral100%

Negative0%

Candidates reported having mixed feelings for Twilio's Principal Software Engineer interview process in Chicago, Illinois.

Twilio Interview Questions

Maximize Greatness of an Array

Medium

Given an array of numbers, rearrange it to maximize the number of indices where array[i] < rearranged_array[i]. Essentially, you want to maximize how many numbers in the array can be replaced by a strictly larger number from within the same array.

ArraysTwo PointersGreedy Algorithms

Univalued Binary Tree

Easy

Determine if a binary tree is univalued, meaning every node has the same value. You need to check if all nodes in the tree contain the same value.

TreesRecursion

Reformat Date

Easy

You're given a date string in a specific format (e.g., "20th Oct 2052") and need to convert it to a standardized format (YYYY-MM-DD).

Strings