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HackWithInfy SES(Systems Engineer Specialist) Interview Experience 2020

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Difficulty level: Easy

Round- 1 Coding Round

The Coding round was held on the HackerEarth platform on 30th March 2020. It comprises 3 questions that vary in difficulty level. The time allotted to solve these questions is 3 hrs. I  solved 1.5 questions and received invitation for 2nd round.

Round-2: Coding Round

This Coding round was held on the same HackerEarth platform on 31st May 2020. It also comprises  3 questions but the level of the  questions increases. In this round, you won’t able to see the number of test cases your code has passed while submitting . Based on the performance one can be offered System Engineer Role (SE) , Systems Engineer Specialist Role (SES) or Power Programmer Role (PP).  

I solved 1.5 questions and received a Pre-Placement Interview call for Systems Engineer Specialist role.

Round-3: Interview:

Due to the ongoing pandemic my Interview was held virtually on 27th September 2020 on Infosys Meridian platform and it lasted for around  25 minutes. I was asked to show my college id before starting the interview .

Interviewer: Tell me something about yourself.

Me: Answered.

Interviewer:  What are your favourite subjects in Computer Science & Engineering?

Me: DS,JAVA,OS,DBMS,OOPS, Software Engineering

Interviewer:  What is DS and its types?

Me:  Answered.

Interviewer: What is Stack and why is it called LIFO?

Me: Explained.

Interviewer: What are the applications of Stack ?

Me: Answered.

Interviewer: Which operations can be performed on Stack?

Me: Explained.

Interviewer: What is linked list , its types and what are its applications?

Me: Answered.

Interviewer: What are the differences between Array and Linked List ?

Me: Explained.

Interviewer: What is Queue, its types  and why it is called FIFO?

Me: Explained.

Interviewer: Which operations can be performed on Queue ?

Me: Explained.

Interviewer: What are the applications of Queue?

Me: Answered.

Interviewer: How  can we  implement a stack  using queue?

Me: Explained.

You can refer to this link for better understanding

Interviewer: What tree is DS? What are the differences between binary tree and binary search tree?

Me: explained.

You can refer to this link

Interviewer: Do you know what is  AVL tree?

Me: yes, and explained him.

Interviewer: What is SDLC and what are its basic stages?

Me:  SDLC (Software Development Life Cycle) is the process of developing software through business needs, analysis, design, implementation and Release and maintenance. It has 6 phases: Planning And Requirement Analysis, Defining Requirements, Designing Architecture,  Developing Product, Product Testing and Integration ,Deployment and Maintenance Of Product.

Interviewer: What are the different models of SDLC?

Me: Waterfall model, Agile model, Iterative model, Spiral model etc.

Interviewer: Explain Waterfall model.

Me: Explained.

Interviewer: What is OS?

Me: Answered.

Interviewer: As a computer science engineer name a software which is very essential in real life?

Me: OS and explained.

Interviewer: Tell me about your extracurricular activities.

Me: Answered.

Interviewer: Do you have any plans for higher studies?

Me: I said not now as I want to explore myself in the corporate world and after 3-4 years I will think of it.

Interviewer: Are you comfortable with travelling and stay to different locations?

Me: yes

Interviewer: what is the meaning of your name?

Me: My name is Aishwarya and it means wealth.

Interviewer: Do you have any question for me?

Me: Thank you for giving me this opportunity. I would like to know what attributes does someone need to have in order to be really successful in this position.

 I received my Selection Letter from Infosys for SES role after 2 months .

I prepared for my interview from this link:


  1. Prepare your Resume well enough as they mainly ask questions from it.
  2. Have a strong grip on core CS subjects like  OOPS,DBMS,OS.
  3. Don’t panic before preparing.
  4. If you get any coding question to solve, apart from coding you try to tell each and every line to the interviewer  it reflects your logical ability.
Last Updated : 03 May, 2021
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