'Coding has over 700 languages', '67% of programming jobs aren’t in the technology industry', 'Coding is behind almost everything that is powered by electricity'
Paytm (One97 Communications Limited) interview experience Real time questions & tips from candidates to crack your interview
Software Engineer
Paytm (One97 Communications Limited)
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4 rounds | 10 Coding problems
Interview preparation journey
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Preparation
Duration: 10 months
Topics: Data Structures and Algorithms, OOPS, C programming, C++ Programming, Machine Learning, Operating System, Deep learning.
Tip
Tip

Tip 1 : Practice problems related to data structures and algorithms 
Tip 2 : Brush up fundamental concepts deeply
Tip 3 : You should have a deep knowledge of your projects and related technology.

Application process
Where: Campus
Eligibility: Above 7 cgpa
Resume Tip
Resume tip

Tip 1 : It should not be more than a page.
Tip 2 : It should be precise and university projects or prior experience like industrial training or internship should be mentioned.

Interview rounds
01
Round
Medium
Online Coding Interview
Duration60 minutes
Interview date16 Aug 2020
Coding problem3

It was held in the evening around 4 pm. The camera was on during the test to invigilate the activity of students. On any doubtful action, warning was given. Platform was easy to code in.

1. Replace 0s
Moderate
30m average time
70% success
0/80
Asked in companies
Paytm (One97 Communications Limited)American ExpressAmazon
Problem approach
Try solving now
2. Ways To Make Coin Change
Moderate
20m average time
80% success
0/80
Asked in companies
InfosysCiscoApple
Problem approach
Try solving now
3. Partition a set into two subsets such that the difference of subset sums is minimum.
Hard
10m average time
85% success
0/120
Asked in companies
Paytm (One97 Communications Limited)AccentureSterlite Technologies Limited
Problem approach
Try solving now
02
Round
Medium
Face to Face
Duration60 minutes
Interview date18 Aug 2020
Coding problem4

It was held in the morning around 11:30 am. The interview was scheduled on google meet. The interviewer was quite friendly. He started by a brief introduction. This round was mostly based on Data structures and algorithms. At the end he asked some concepts of OOPs and Operating System.

1. String Transformation
Moderate
23m average time
0/80
Asked in companies
WalmartSprinklrTech Mahindra
Problem approach
Try solving now
2. Design a stack that supports getMin() in O(1) time and O(1) extra space
Moderate
15m average time
85% success
0/80
Asked in companies
Morgan StanleySalesforceOpenText
Problem approach
Try solving now
3. Number of GP sequence
Moderate
10m average time
90% success
0/80
Asked in companies
SAP LabsPaytm (One97 Communications Limited)HSBC
Problem approach
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4. Operating System
Problem approach
03
Round
Medium
Face to Face
Duration45 minutes
Interview date18 Aug 2020
Coding problem2

It was held in the afternoon around 3pm. The interviewer was quite friendly. She started with my introduction. She asked 2-3 problems related to data structures and then asked about python libraries which I used in my projects.

1. Group Anagrams
Moderate
30m average time
70% success
0/80
Asked in companies
CiscoDBS BankSalesforce
Problem approach
Try solving now
2. Kth Smallest Element
Easy
15m average time
85% success
0/40
Asked in companies
Info Edge India (Naukri.com)InfosysDelhivery
Problem approach
Try solving now
04
Round
Medium
Face to Face
Duration45 minutes
Interview date18 Aug 2020
Coding problem1

It was held in the evening around 6 pm. The interviewer started with a brief introduction of me. He asked about my projects and then asked some concepts of Operating System and problems related to data structures. I had projects of Machine Learning and Deep learning. Discussion about projects continued for about 25 minutes.

1. Middle of Linked List
Easy
20m average time
80% success
0/40
Asked in companies
IBMHCL TechnologiesGenpact
Problem approach
Try solving now
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