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
Journey
It was a great journey. I was at the beginning of my 7th semester of B.E. when I applied for the position. The process started with a round of mixed questions on computer-related subjects like DBMS, OS, and CN, all in MCQ format. There were 3-4 DBMS questions and three coding questions. After completing this round, I was informed that I had cleared round 1.
Next, a technical interview was scheduled on Superset. During this interview, I was asked one coding question and aptitude and scenario-based questions. After completing the technical interview, an HR interview was scheduled. Overall, the experience was excellent.
Application story
I got mail from the recruiter via Naukri. I applied for the same and got the mail about a month after the application I got the mail for my interview.
Why selected/rejected for the role?
Yes, I was selected. My confidence and problem-solving ability helped me secure the position. When you sit for an interview, remember to envision yourself joining the company. This mindset will positively influence your body language, giving the interviewer positive signs and earning you extra points.
Preparation
Duration: 4 months
Topics: Data Structures, Web Dev, System Design, Algorithms, HLD
Tip 1: Consistency over aggressiveness.
Tip 2: Practice at least 200 problems
Tip 3: Do a couple of projects apart from your regular job. My hiring manager was impressed by the Android project.
Application process
Where: Naukri
Eligibility: Minimum 1 yr exp.
Tip 1: You should have some good projects apart from the job.
Tip 2: You should have a properly formatted resume. Work experience should be on top after a brief introduction.
Interview rounds
01
Round
Medium
Face to Face
Duration60 minutes
Interview date9 Jan 2022
Coding problem1
It had two DSA-based questions during the evening at around 4 PM. The interviewer was helpful and supportive.
1. Sort 0 1 2
Easy
22m average time
0/40
Asked in companies
You have been given an integer array/list(ARR) of size 'N'. It only contains 0s, 1s and 2s. Write a solution to sort this array/list.
Note :
Try to solve the problem in 'Single Scan'. ' Single Scan' refers to iterating over the array/list just once or to put it in other words, you will be visiting each element in the array/list just once.
Problem approach
I gave the optimum approach first-hand with three-pointers.
Maintain three indexes. Initialize first index i as 0 second index j as 0, and third index k as n-1.
Run the loop until i becomes equal to k
If arr[i] = 1, then increment i (i++).
Else if arr[i] = 0,
Swap values at arr[i] and arr[j]
Increment both i and j (i++, j++).
Else (arr[i] = 2),
Swap values at arr[i] and arr[k]
Decrement k only (k--).
02
Round
Medium
Face to Face
Duration60 minutes
Interview date21 Jan 2022
Coding problem1
The round was to test my problem-solving ability. It had a puzzle and one system design issue.
1. System Design Question
Design a System for a ticket booking system for a fest of college where 90% of seats are reserved for college students and the rest are for outsiders. The booking window opens at 10 am on a particular day. (Learn)
Problem approach
Tip 1: You should design every component in a distributed manner.
Tip 2: Keep in mind to avoid a single point of failure.
Tip 3: Have some identifiers for students and non-students, like Enrollment numbers.
03
Round
Medium
Face to Face
Duration60 minutes
Interview date21 Jan 2022
Coding problem1
It was a hiring manager round where we discussed about my previous projects and what kind of work I have done. How I managed conflicts with the manager if any. Discussed my non-job projects and what I learned during the past 1 year. What is the current new thing I am learning recently apart from tech?
1. Convert String
Easy
15m average time
85% success
0/40
Asked in companies
You are given a string 'STR'. You have to convert the first alphabet of each word in a string to UPPER CASE.
For example:
If the given string 'STR' = ”I am a student of the third year” so you have to transform this string to ”I Am A Student Of The Third Year"
Note:
'STR' will contains only space and alphabets both uppercase and lowercase. The words will be separated by space.
04
Round
Medium
HR Round
Duration60 minutes
Interview date18 Feb 2022
Coding problem1
It was an HR discussion so he explained about the company. The company's goal and growth and why one can join for a long time here.
1. Basic HR Question
Are you willing to relocate as required by the company?
Problem approach
Tip 1:Always say yes
Tip 2:be polite
Tip 3:be confident
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
How do you remove whitespace from the start of a string?
Choose another skill to practice
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