Grammarly | Senior front end software engineering phone interview

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grammarly
Senior front end software engineering
May 13, 20252 reads

Summary

I had a phone interview for a Senior Front End Software Engineering role at Grammarly, which was a basic Data Structures & Algorithms interview. I was asked to solve 'Perfect Number' and a derivative of 'Number of Islands'. I did not move past the phone interview.

Full Experience

Was asked questions from the tagged Grammarly questions. It was just a basic DSA interview with nothing related to front-end. My interviewer was not front end developer or knew javascript.

We did introductions and talked about myself/resume for 2-3 mins. Then we jumped into the leetcode questions. You have 5 mins at the end to ask questions.

Everything was done on Hackkerank and I was able to run my code against tests.

I did not move past the phone interview. No feedback was provided as to why.

Interview Questions (2)

Q1
Perfect Number
Data Structures & Algorithms

Make sure to try to optimize this as much as possible. Interviewer realy wanted me to come up with the O(sqrt(n)) solution

Q2
Number of Islands derivative
Data Structures & Algorithms

This had a small twist to the original number of islands questions but it was pretty easy to figure out if you have done this question. Also good to practice with another derivative Word Search

Preparation Tips

I recomend to do all the Grammaly leetcode tagged questions. Theres only 26 as of this month.

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