Flipkart Interview Experience for SDE-2

I recently had interviews with Flipkart in May 2021 and got selected, I wanted to share my experience so that other people can take help from it.
I had 2 years of experience.

Round 1: Machine Coding : 2 hours

The first round was machine coding round, the problem statement was to create a online food ordering system with various features.

Features:

Complete problem statement : https://docs.google.com/document/d/1Bmkz9omByHqVvwU45cvkBRSwJAPKw9yaDsRlEnCg_lg/edit

I was Given 2 hours -> 90 minutes for coding and then 30 min to explain and demo the application to the panelist.
Do practice fee questions on machine coding because the interviewer might ask you to present the screen or keep tracking you throughout.

The expectation was to write runnable and extensible code with using various OOPS concepts and design patterns.
I was able to meet all the expectations and solved the created the bonus feature as well so the interviewer was quite impressed.

I have kept the solution in my GitHub Repo : https://github.com/iqblmoh/machineCoding

Round 2: DSA round : 1 hour

The second round was coding round, I was asked 2 questions, 1 hour, 1 panelist
The interview started with a brief intro about me and work experience.

1. Sort array of 0 1 and 2 in one pass -> https://www.geeksforgeeks.org/sort-an-array-of-0s-1s-and-2s/
2. Maximum Path Sum in a Binary Tree -> https://www.geeksforgeeks.org/find-maximum-path-sum-in-a-binary-tree/

Expectation are, you should be able to write clean code and explain through dry run.

I got stuck a bit in second question but interview gave me a hint and was able to complete it. This round is very important , you have to solve at least 1.5(1 complete and 1 at least half) problem to clear it.

Round 3: System Design Round (LLD +HLD): 1.5 hour

Third round was a design round, 1 panelist.
I was asked To design BookMyShow.

LLD
How to approach :

HLD
Once I was done with LLD the interviewer asked me to create HLD for the same.
Divide the services if possible, like user service is diff from cinemaService etc..
Use Kafka queues to connect the services together.
See Gaurav sen’s YouTube video that will also help

I was able to design both LLD and HLD nicely the interviewer was impressed. so I got to the Hiring manager round.

Hiring Manager Round : 1 hour

This was the last round, It will be totally on your luck what kind of an HM interview you have, some people gets easy some gets tough.

The interview started with a brief intro with the interviewer,
The HM asked about my work experience and went in deep in many projects.
I worked on redis cluster so there was a long discussion on redis-sentinel vs redis-cluster.
Asked about OOPS in deep. java interfaces, abstract classes, singleton classes.
Asked about messaging queues, like Kafka, rabbitmq and all.

In the end the HM explained me the projects and discussed about the team.
For HM round be prepared with all the HR questions as well, like
1. Why should we hire you?
2. Why are you switching?
3. Why Flipkart?
4. Strengths and weaknesses.

Got the call from HR in 3 days that I was selected.

The process was very smooth and as I was already on notice period it took only 10 days to complete the process.

Thanks

Senior software engineer at Flipkart | Ex paytm | IIT Roorkee