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OLX Interview Experience (On-Campus)

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Recently, I have been through the interview experience of OLX India and I would like to share my experience with everyone.

Eligibility :           

  • CS/IT related branches
  • Minimum 65% in Academics(X, XII)
  • Minimum 6.5 CGPA with no standing arrears

Totally there were five rounds 1 coding+ 2 technical + 1 EM Engineering Manager + 1 HR

Round 1 (Coding-1.5 hr): This was conducted on codility platform which is a power tool that detects plagiarism and generates report on checking various testcases. Questions were logical based which contains 2 medium and a hard level questions.

  • Difficulty Level – Medium
  • Time Duration – 90 Minutes
  • Total Questions – 3

From this round out of 480 applicants 33 members were shortlisted

Round 2 (Technical – Data Structures & Algorithms Round-1hr): Self Introduction and brief explanation about projects 

First he asked me some basic definitions of data structures after that they asked below

  1. https://www.geeksforgeeks.org/find-a-repeating-and-a-missing-number/. First i have done the normal naive approach the he asked me to optimize and helped me to reach optimized solution
  2. https://www.geeksforgeeks.org/a-program-to-check-if-a-binary-tree-is-bst-or-not/
  3. https://www.geeksforgeeks.org/find-number-of-islands/

He just asked the approach for this question dint asked for writing code. Interviewer was very helpful and pushes us if we stuck somewhere.

Round 3 (Technical – System Design Round-1hr): In this round it was deep dive into the projects done and given one real time scenario asked me to draw entity relationship diagram. 

  • Then he asked me do write all classes and their respective variables, methods and relationship between them that could be possible for given scenario.
  • Scenario given – Restaurant review system (similar to google maps)
  • Then he asked some sql queries based on scenario using joins and asked about algorithms used in our projects.

Round 4 (Managerial Round-1hr): This round is to check whether we’re suitable for the team taken by Engineering manager

There will be personality based questions and some open ended questions like 

  • How facebook friend suggestions work and so

And then he asked puzzles one of them i remembered was

  1. There were total 10 coins out of them 1 is defected and how many min no.of weightings will you take to find defected coin given 2 sided weighting machine (old type) and then he further took question for 100 coins and asked me to give an approach to code for this logic.

Round 5 (HR-30 mins):

  • This wasn’t an elimination round. This round is just to give an idea about OLX and it’s operations, businesses.
  • We can ask doubts in these rounds if any about role/company.
  • And we further discussed about work location, Aspirations, Ambitions. Compensation benefits.

Out of 33 students, 2 members are selected for the OLX internship+FTE. This whole process is a Remote process due to the COVID-19 pandemic.


Last Updated : 15 Jul, 2021
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