PayU interview experience Real time questions & tips from candidates to crack your interview
Software Engineer
PayU
4 rounds | 4 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 2 Months
Topics: Data structure, Algorithm, HLD, LLD, Dynamic programming, Graphs
Tip 1 : have strong grasp of graph based algorithms
Tip 2 : have strong knowledge of data structure
Tip 3 : should be able to find where to use appropriate design pattern
Application process
Where: Other
Eligibility: 2 years of job experience
Tip 1 : keep it short and simple
Tip 2 : focus more on design/architecture of project
Interview rounds
01
Round
Medium
Video Call
Duration90 minutes
Interview date4 May 2021
Coding problem1
Contained mix of coding, oops and general programming questions
Coding was live coding round
It was around 12pm
They used their own coding environment, I coded in java
1. Maximum Subarray Sum
Moderate
35m average time
81% success
0/80
Asked in companies
You are given an array 'arr' of length 'n', consisting of integers.
A subarray is a contiguous segment of an array. In other words, a subarray can be formed by removing 0 or more integers from the beginning and 0 or more integers from the end of an array.
Find the sum of the subarray (including empty subarray) having maximum sum among all subarrays.
The sum of an empty subarray is 0.
Example :
Input: 'arr' = [1, 2, 7, -4, 3, 2, -10, 9, 1]
Output: 11
Explanation: The subarray yielding the maximum sum is [1, 2, 7, -4, 3, 2].
Problem approach
I solved it using partial sums approach
It can be found on geeks for geeks
02
Round
Hard
Video Call
Duration90 Minutes
Interview date20 May 2021
Coding problem1
It was a collection of HLD AND LLD
Was around 12pm
This was conducted on bluejeans
1. System Design Question
Design a URL shorter with db and everything
Problem approach
Tip 1 : always use right kind of database
Tip 2 : think about appropriate design pattern
Tip 3 : think about scaling the application into microservices architecture
03
Round
Easy
Video Call
Duration60 Minutes
Interview date2 Jun 2021
Coding problem1
It was a friendly managerial round with director of my team, he was very for me to come on board and explained truthfully how payu is.
1. System Design Question
We discussed on some design topics like, pros and cons of microservice architecture and pros and cons of monolithic arch.
Problem approach
Tip 1 : know the difference between different coding architectures
Tip 2 : practice sql and DBA
Tip 3 : read about the company and ask about the team you would be working for
04
Round
Easy
HR Round
Duration30 Minutes
Interview date15 Jun 2021
Coding problem1
Just a normal HR discussion, he informed me that I've been selected and we discussed about the salary part
1. Basic HR Question
Normal questions about my experience working in corporate
Problem approach
Tip 1 : just be calm and listen to the HR
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
What is recursion?
Choose another skill to practice
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