Airtel Interview Experience for SDE (Intern+FTE) 2021
Online Assessment – There were a few MCQs and 2 coding questions.
- I didn’t remember the exact questions but both were of easy-medium category.
- Luckily, I was able to solve both of them and thus got shortlisted for the next round.
Interview Round 1 – He introduced himself and asked me for an introduction and a few of my projects (since I did a lot of live projects) and asked if there is any URL or link for them. We had a discussion around 20mins and then he proceeds to the coding part.
- First, he asked me to design a linked list with some basic operations (add a node, delete a node).
- I told him the approach and code it within a few minutes.
- Then, he asked me to implement the stack by using the above designed LinkedList. (Push and Pop operation)
- Followed up, he asked me to implement a Queue using that stack (enqueue and dequeue operations)
- I told him the O(n) approach first and then he asked me to optimize that.
- He was completely satisfied by my answers and we end the interview on a happy note. (60-minutes)
- The interviewer was friendly and a very kind person. I never feel it like an interview, more it feels like a discussion.
Interview Round 2– Starts again with some basic intro, followed by a quick discussion over my Projects. He asked me about Event Loop in JS and how JS works asynchronously.
- Then he asked me a networking question which I hardly answered followed up by “Sir, I’m not good at networking”.
- “Okay, no issues” he replied and asked the abstract class in OOPS.
- After some time of discussion, he gave me a coding question.
- I told him the approach and then he only asked me to write the pseudo-code.
- This round lasts for 45-50 minutes.
Interview Round 3 – It was only a 15-minutes HR round.
- He asked me about what I think Airtel actually works.
- Then, he sends me a link and gave me 5-min to go through the entire article and tell him what I understood from that.
Verdict– After a few days, I got selected.
- Keep your basics very clean, either in the case of DS/Algo or with the Tech stacks you used in your projects. They may be a game-changer any time.
- Also, I would like to thank the GFG community, I got benefited from it a lot and it is my responsibility to give something back. I hope you guys enjoyed reading this. Keep faith in your abilities, prepare as hard as you can, hope for the best, good days are coming.