Gupshup Senior Software Engineer Interview Questions and Answers

Three coding problems were asked one was to print frequency of each character in a string, second was also similar to this problem unable to recall it and third problem was given an array of string and range from L to R find the nth character if all strings from L to R is concatenated and sorted. Apart from these three coding problems there were 10 easy MCQ's.

Q1. Basic questions on java and spring boot, annotations, oops concept.
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Q2. Code LRU cache(with no updates), just to implement push and pop operation with given window size of 4.
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Q1. It was a design round where I was asked to write class models of a in memory session management system without using tools like redis.
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Q1. Discussion about past projects
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Q1. Questions about past projects
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Q1. Ruby on Rails basic concept questions, Writing routes, DBMS basic questions
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Q2. Program to reverse a string without using reverse method
Ans. 
Use a loop to iterate through the string and build a new reversed string.
• Create an empty string to store the reversed result.

• Iterate through the original string from the end to the beginning.

• Append each character to the new string.

• Return the reversed string.
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Q1. Discussion on projects which we had worked upon. Round was with manager.
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Behavioural questions related to organisations

Q1. HR discussion, salary discussion and sharing offer letter
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