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OLX Interview Experience (On-Campus)

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 branchesMinimum 65% in Academics(X, XII)Minimum 6.5 CGPA with no standing arrearsTotally there were five rounds 1 coding+ 2 technical + 1 EM Engineering Manager + 1 HRRound 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 – MediumTime Duration – 90 MinutesTotal Questions – 3From this round out of 480 applicants 33 members were shortlistedRound 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 belowhttps://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 solutionhttps://www.geeksforgeeks.org/a-program-to-check-if-a-binary-tree-is-bst-or-not/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 managerThere will be personality based questions and some open ended questions like How facebook friend suggestions work and soAnd then he asked puzzles one of them i remembered wasThere 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.Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more, please refer Complete Interview Preparation Course. In case you are prepared, test your skills using TCS, Wipro, Amazon and Microsoft Test Serieses.