PhonePe | SDE 2 (3-5 Years) | Bangalore | Aug 2023 [Reject]

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phonepe
sde 2bangalore3 yearsRejected
August 16, 202327 reads

Summary

I interviewed for the SDE 2 role at PhonePe in August 2023 and went through Machine Coding, Problem Solving, and System Design rounds. Despite positive feedback, I was surprisingly rejected after these rounds.

Full Experience

I recently interviewed for an SDE 2 position at PhonePe in Bangalore in August 2023. The interview process consisted of three rounds: Machine Coding, Problem Solving/Data Structures, and System Design. I felt I performed well in all rounds and received good feedback, but was unexpectedly rejected before reaching the Hiring Manager round. I hope sharing my experience can help others.

Interview Questions (4)

Q1
Design Order Management System
System Design

Design and implement an Order Management System for Flipkart.

Q2
Remove K Digits
Data Structures & AlgorithmsMedium

Given a non-negative integer num represented as a string, remove k digits from the number so that the new number is the smallest possible. Return the new number represented as a string.

Q3
Collect All Treasures in Matrix
Data Structures & Algorithms

Find if we can cover all given treasures in a matrix of m x n with values:

  • 0 : Open position
  • 1 : Treasure
  • -1: Wall [Blocked position]

We will be given a coordinate of where to start and it will always be a valid position. The follow up was to produce the minimum path to collect all these treasures if possible, which I wasn't able to achieve.

Q4
Malicious URL Detection System
System Design

The problem was presented as a feature use-case in existing product. We have an in-house browser [like Chrome, FireFox] to serve customers, and a data analytics team. Data analytics team frequently produces files with list of websites that are malicious and should not be visited due to security concerns. We need to build a System to consume and process the data from data analystics team, and let the browser know if a website is malicious or not for any given URL.

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