OLX Group interview experience Real time questions & tips from candidates to crack your interview
Android Engineer
OLX Group
1 rounds | 2 Coding
problems
Rejected
Interview preparation journey
Journey
My journey began with learning the basics of Android development, where I focused on understanding core concepts and building small projects to strengthen my foundation. These projects not only provided hands-on experience but also boosted my confidence in applying my skills to real-world problems.
Over time, I had the opportunity to work with two different companies, gaining valuable industry experience. This exposure helped me refine my coding practices, understand scalable architectures, and work on production-level features that impact real users.
The combination of consistent learning, project-building, and industry experience equipped me with the skills and confidence to successfully clear job interviews.
Application story
I got to see on LinkedIn that OLX is looking for an Android Engineer, so I tried to connect with the HR/TA and senior engineers for a referral and ended up getting one.
Why selected/rejected for the role?
The interview was good, but I was not able to answer a few of the questions, and thus the interview panel thought that I needed some more knowledge in the domain.
Preparation
Duration: 2 months
Topics: Data Structures, Android Core Fundamentals, Kotlin, Java, Coroutines, RxJava, SOLID Principles
Tip 1: Use ChatGPT to deep-dive into topics for better understanding.
Tip 2: Take advantage of ChatGPT for mock interviews before the actual interview.
Application process
Where: Linkedin
Eligibility: 2-3 years of experience as an Android developer, (Salary Package: 18 LPA)
Tip 1: Always build your resume using Overleaf, as it makes your resume ATS-friendly.
Tip 2: Go through the job description (JD) and incorporate key points into your resume to align your profile with the role.
Interview rounds
01
Round
Medium
Video Call
Duration60 minutes
Interview date21 Jul 2025
Coding problem2
The interview was scheduled during lunch hours and was based on Android knowledge and DSA.
1. 2 Sum
Moderate
0/80
Asked in companies
Given an integer array Arr of size N and an integer target, your task is to find the indices of two elements of the array such that their sum is equal to target. Return <-1,-1> if no such pair exists.
Note:
If more than one such pair of indices exist, return the lexicographically smallest pair
You may not use the same element twice.
Problem approach
Tip 1: Try to find the solution using the brute force method.
Tip 2: Try to solve the problem using the two-pointers approach.
2. Android and Kotlin related questions
The questions were based on Android fundamentals, coroutines, Java, and Kotlin.
Problem approach
Tip 1: One should have a decent knowledge of Android fundamentals.
Tip 2: Try to deep dive into the concepts and understand how they work in different scenarios.
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
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