PhonePe Software Testing Engineer Interview Questions and Answers

Round duration - 60 minutes
Round difficulty - Easy

Started with the introduction.
Then there were two-three coding questions.
Some OS and DBMS concepts were asked.
Questions related to testing were also included.

Q1. 
Reverse the String Problem Statement
You are given a string STR which contains alphabets, numbers, and special characters. Your task is to reverse the string.
Example:
Input:
STR = "abcde"
Output:
"e...read more
Ans. 
Reverse a given string containing alphabets, numbers, and special characters.
• Iterate through the characters of the string from end to start and append them to a new string.

• Use built-in functions like reverse() or StringBuilder in languages like Python or Java for efficient reversal.

• Handle special characters and numbers along with alphabets while reversing the string.

• Ensure to consider the constraints on the number of t
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Q2. 
Number and Digits Problem Statement
You are provided with a positive integer N. Your task is to identify all numbers such that the sum of the number and its digits equals N.
Example:
Input:
N = 21
Out...read more
Ans. 
Identify numbers whose sum of digits and number equals given integer N.
• Iterate through numbers from 1 to N and check if sum of number and its digits equals N.

• Use a helper function to calculate sum of digits for a given number.

• Return the numbers that satisfy the condition in increasing order, else return -1.
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Round duration - 60 minutes
Round difficulty - Medium

This was quite a tough round that can be cleared only by practice and understanding the problem. They asked about the profile first, then questions related to testing, SDLC, and so on. And then, I was asked to write test cases for two to three problems. Writing a test case was a task in this round. The interview was a senior testing engineer and was very friendly and helpful also and answered all my queries related to work.