Postman Senior Software Engineer 1 Interview Questions and Answers

Q1. Edit distance problem
Ans. 
The edit distance problem involves finding the minimum number of operations required to transform one string into another.
• The edit distance problem can be solved using dynamic programming.

• Common operations include insertion, deletion, and substitution of characters.

• Example: Given strings 'kitten' and 'sitting', the edit distance is 3 (substitute 'k' with 's', insert 'g', substitute 'n' with 'g').
Answered by AI
Add your answer
Q2. Light switch puzzle
Add your answer

Q1. Difference between null and object.
Ans. 
Null is absence of value while object is a collection of properties and methods.
• Null is a primitive value while object is a complex data type.

• Null is used to indicate absence of value while object is used to represent real-world entities.

• Null cannot have properties or methods while object can have both.

• Example of null: let x = null; Example of object: let person = { name: 'John', age: 30 };
Answered by AI
Add your answer

Q1. DSA question (Competitive programming)
Add your answer
Q2. LLD question (Competetive)
Add your answer

Array and Java related questions

1st round is coding assessment round based on graph and hashmaps

2 coding , 2 SQL with some quants

Q1. Remove redundant parentheses in a expression
Ans. 
Remove redundant parentheses in a expression
• Identify the innermost parentheses

• Evaluate the expression inside the innermost parentheses

• Replace the innermost parentheses with the evaluated expression

• Repeat until no more redundant parentheses exist
Answered by AI
Add your answer

Q1. Why do you want to join Chargebee?
Add your answer

A coding test on hackerrank with some basic graph problems

Q1. The interviewer asked about my projects
Add your answer

While the interview itself was good and the interviewer was knowledgeable, it was the HR that I had an issue with. She was either not aware about the role and callous in general, or she was least bothered about her job. While I was selected after the screening round, it took her over 2 and a half weeks to schedule the first round. The first round had all technical good questions. However, I was rejected not by the interviewer, but by the HR (as per what I could summarise). Without asking me, she had scheduled the interview for the Staff role and not for the Senior role, which automatically put my application in jeopardy, and then she cited that even if we accept you, you will not be happy with the salary offered, and hence I rejected you. That was downright horrible!