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Summary
I participated in the interview process for an SDE L2 role at Twilio, which included an online assessment followed by remote interviews. I completed two rounds but was ultimately rejected because I couldn't fully complete the coding task in the first round.
Full Experience
The interview process at Twilio began with an initial online test. After successfully clearing this assessment, I was invited for subsequent remote interviews. The complete process was structured to include 3-4 rounds, but I only participated in two before receiving a rejection.
Round 1: Coding Challenge
I was presented with a problem involving pairs of numbers, where my task was to find the maximum overlapping intervals among these pairs. Additionally, I needed to identify the top 'n' overlapping intervals from the given set. Unfortunately, I was unable to complete the code for this problem within the allotted time, which was a significant factor in my rejection.
Round 2: Database Design
This round focused on database design, which I found to be relatively straightforward. The key steps involved identifying the main entities, defining primary keys and foreign keys to establish relationships between the tables, and then illustrating the 'happy flow' using an Entity-Relationship (ER) diagram.
Ultimately, I was rejected from the process because I could not finish my code for the Round 1 problem.
Interview Questions (2)
Given pairs of numbers representing intervals, the task is to find the maximum number of overlapping intervals. Furthermore, I was required to identify the top 'n' sets of overlapping intervals.
Design a database by identifying the main entities, defining primary and foreign keys between the tables, and illustrating the 'happy flow' using an Entity-Relationship (ER) diagram.