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Dell Principal Software Engineer Interview Questions and Answers

Updated 21 Aug 2024

7 Interview questions

A Principal Software Engineer was asked 10mo ago
Q. Given the root of a binary tree, return the inorder traversal of its nodes' values.
Ans. 

Inorder traversal of a binary tree visits nodes in the order of left, root, right.

  • Start at the root node

  • Recursively traverse the left subtree

  • Visit the current node

  • Recursively traverse the right subtree

  • Repeat until all nodes are visited

A Principal Software Engineer was asked 11mo ago
Q. How do you handle critical application incidents?
Ans. 

I handle critical application incidents by following a structured incident response process.

  • Quickly assess the severity and impact of the incident

  • Notify relevant stakeholders and form an incident response team

  • Identify the root cause of the issue and implement a temporary fix if needed

  • Communicate updates and progress to stakeholders regularly

  • Conduct a post-incident review to learn from the incident and prevent futu...

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A Principal Software Engineer was asked 11mo ago
Q. How does application CI/CD work?
Ans. 

CICD stands for Continuous Integration/Continuous Deployment, a process that automates the building, testing, and deployment of applications.

  • CICD involves automating the process of integrating code changes, testing them, and deploying them to production.

  • It typically includes stages like code commit, build, test, and deployment.

  • Tools like Jenkins, GitLab CI/CD, and CircleCI are commonly used for CICD pipelines.

  • CICD...

A Principal Software Engineer was asked 12mo ago
Q. How would you write a test case for a webpage?
Ans. 

Test case to verify login functionality on a webpage

  • Enter valid username and password, verify successful login

  • Enter invalid username and password, verify error message displayed

  • Try logging in without entering any credentials, verify error message displayed

A Principal Software Engineer was asked
Q. Design a Tic-Tac-Toe game. You need to implement the game logic, including placing marks, checking for a winner, and handling draws.
Ans. 

Implement a simple Tic Tac Toe game in code, allowing two players to take turns and check for a winner.

  • Use a 2D array to represent the game board, e.g., [['', '', ''], ['', '', ''], ['', '', '']].

  • Create a function to display the board after each move.

  • Implement a function to check for a win condition (three in a row).

  • Allow players to input their moves and validate the input.

  • Handle the case of a draw when all cells ...

A Principal Software Engineer was asked 10mo ago
Q. Sum of two distinct numbers
Ans. 

To find the sum of two distinct numbers, simply add the two numbers together.

  • Add the two distinct numbers together to get the sum.

  • Make sure the numbers are different from each other to ensure they are distinct.

  • For example, the sum of 3 and 5 is 8.

A Principal Software Engineer was asked
Q. Solid principal with example, Design pattern,
Ans. 

Solid principle is a set of five design principles for creating maintainable software

  • Single Responsibility Principle - a class should have only one reason to change

  • Open/Closed Principle - classes should be open for extension but closed for modification

  • Liskov Substitution Principle - objects of a superclass should be replaceable with objects of its subclasses without affecting the program's correctness

  • Interface Seg...

Are these interview questions helpful?

Dell Principal Software Engineer Interview Experiences

9 interviews found

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Binary Tree Inorder traversal
  • Ans. 

    Inorder traversal of a binary tree visits nodes in the order of left, root, right.

    • Start at the root node

    • Recursively traverse the left subtree

    • Visit the current node

    • Recursively traverse the right subtree

    • Repeat until all nodes are visited

  • Answered by AI
  • Q2. Sum of two distinct numbers
  • Ans. 

    To find the sum of two distinct numbers, simply add the two numbers together.

    • Add the two distinct numbers together to get the sum.

    • Make sure the numbers are different from each other to ensure they are distinct.

    • For example, the sum of 3 and 5 is 8.

  • Answered by AI

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
Selected Selected
Round 1 - Technical 

(1 Question)

  • Q1. How application CICD works?
  • Ans. 

    CICD stands for Continuous Integration/Continuous Deployment, a process that automates the building, testing, and deployment of applications.

    • CICD involves automating the process of integrating code changes, testing them, and deploying them to production.

    • It typically includes stages like code commit, build, test, and deployment.

    • Tools like Jenkins, GitLab CI/CD, and CircleCI are commonly used for CICD pipelines.

    • CICD help...

  • Answered by AI
Round 2 - Coding Test 

Problem solving and Scripting for string concatenation

Round 3 - One-on-one 

(1 Question)

  • Q1. How do you handle critical application incident?
  • Ans. 

    I handle critical application incidents by following a structured incident response process.

    • Quickly assess the severity and impact of the incident

    • Notify relevant stakeholders and form an incident response team

    • Identify the root cause of the issue and implement a temporary fix if needed

    • Communicate updates and progress to stakeholders regularly

    • Conduct a post-incident review to learn from the incident and prevent future oc...

  • Answered by AI
Round 4 - HR 

(1 Question)

  • Q1. What are your salary expectation ?
  • Ans. 

    I am looking for a competitive salary based on my experience, skills, and the responsibilities of the role.

    • Research industry standards for Principal Software Engineer salaries

    • Consider my years of experience and expertise in the field

    • Factor in the cost of living in the location of the job

    • Negotiate based on additional benefits such as bonuses, stock options, or remote work opportunities

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Just keep the basics clear.

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed in Apr 2023. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. Basic javascript and framework related questions
Round 3 - Technical 

(1 Question)

  • Q1. Deep structural based questions / architecture level questions
Round 4 - HR 

(1 Question)

  • Q1. Regarding the last experience
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview before Feb 2023.

Round 1 - Technical 

(2 Questions)

  • Q1. Java, Rest api, spring questions. Focussing on logic
  • Q2. Db questions for joints
Round 2 - Technical 

(1 Question)

  • Q1. Java, design questions and write some code for array, list etc
Round 3 - HR 

(1 Question)

  • Q1. Salary expectation, why would you join etc
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Jun 2023. There was 1 interview round.

Round 1 - One-on-one 

(1 Question)

  • Q1. Write a test case on a webpage
  • Ans. 

    Test case to verify login functionality on a webpage

    • Enter valid username and password, verify successful login

    • Enter invalid username and password, verify error message displayed

    • Try logging in without entering any credentials, verify error message displayed

  • Answered by AI

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before May 2023. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Solid principal with example, Design pattern,
  • Ans. 

    Solid principle is a set of five design principles for creating maintainable software

    • Single Responsibility Principle - a class should have only one reason to change

    • Open/Closed Principle - classes should be open for extension but closed for modification

    • Liskov Substitution Principle - objects of a superclass should be replaceable with objects of its subclasses without affecting the program's correctness

    • Interface Segregat...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - command on your basic fundamentals

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Oct 2022. There were 2 interview rounds.

Round 1 - One-on-one 

(4 Questions)

  • Q1. Process oriented coding in python Team management related questions
  • Q2. Related to work
  • Q3. Automation framework
  • Q4. Code tic tac toe
  • Ans. 

    Implement a simple Tic Tac Toe game in code, allowing two players to take turns and check for a winner.

    • Use a 2D array to represent the game board, e.g., [['', '', ''], ['', '', ''], ['', '', '']].

    • Create a function to display the board after each move.

    • Implement a function to check for a win condition (three in a row).

    • Allow players to input their moves and validate the input.

    • Handle the case of a draw when all cells are f...

  • Answered by AI
Round 2 - Technical 

(1 Question)

  • Q1. Coding , Problem solving
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before May 2023. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Basics of c language

I applied via Company Website and was interviewed before Dec 2020. There was 1 interview round.

Interview Questionnaire 

3 Questions

  • Q1. C/C++ concepts, Linux OS internals
  • Q2. Coding exercise - 2 programs on notepad
  • Q3. Design questions, design patterns

Interview Preparation Tips

Interview preparation tips for other job seekers - Interviewers are technically sound, they asks reasonable questions based on your profile. Interview level is medium to difficult. If you have sound knowledge on Embedded systems and good command on programming, you will be easily selected.

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I appeared for an interview before Sep 2020.

Round 1 - Coding Test 

(1 Question)

Round duration - 180 Minutes
Round difficulty - Medium

Round was held in the morning at 10 am.

  • Q1. 

    M - Coloring Problem Statement

    Given an undirected graph with 'N' nodes in the form of an adjacency matrix and an integer 'M', determine if it is possible to color the vertices of the graph using at most ...

  • Ans. 

    The problem involves determining if a given graph can be colored with at most 'M' colors without adjacent vertices sharing the same color.

    • Create a function that takes the adjacency matrix, number of nodes 'N', and maximum number of colors 'M' as input.

    • Implement a graph coloring algorithm such as backtracking or greedy coloring to check if the graph can be colored with at most 'M' colors.

    • Check if adjacent vertices have ...

  • Answered by AI
Round 2 - Face to Face 

(1 Question)

Round duration - 40 Minutes
Round difficulty - Medium

The round was held in the evening

  • Q1. 

    Trie Data Structure Implementation

    Design and implement a Trie (prefix tree) to perform the following operations:

    • insert(word): Add a string "word" to the Trie.
    • search(word): Verify if the string "w...
  • Ans. 

    Implement a Trie data structure to insert, search, and check for prefixes in strings.

    • Create a TrieNode class with children and isEndOfWord attributes.

    • Implement insert, search, and startsWith methods in the Trie class.

    • Use a Trie to efficiently store and search for strings based on prefixes.

    • Example: insert 'apple', search 'apple' returns true, startsWith 'app' returns true, search 'app' returns false.

  • Answered by AI
Round 3 - HR 

Round duration - 10 Minutes
Round difficulty - Easy

Was held in the morning around 9 am

Interview Preparation Tips

Professional and academic backgroundI completed Computer Science Engineering from TIET - Thapar Institute of Engineering And Technology. I applied for the job as SDE - 1 in NoidaEligibility criteriaAbove 7 CGPASamsung interview preparation:Topics to prepare for the interview - OOPS, Algorithms, Operating System, DBMS, Data StructuresTime required to prepare for the interview - 2 MonthsInterview preparation tips for other job seekers

Tip 1 : Focus on graphs, most questions are from this topic
Tip 2 : Prepare well about the projects you mention in your resume
Tip 3 : Do not fill the resume with too many things. Keep it simple

Application resume tips for other job seekers

Tip 1 : Have 2-3 projects on resume. But also be prepared to answer questions related to the projects.
Tip 2 : Do not mention too many things. Keep it short and simple

Final outcome of the interviewSelected

Skills evaluated in this interview

Dell Interview FAQs

How many rounds are there in Dell Principal Software Engineer interview?
Dell interview process usually has 2-3 rounds. The most common rounds in the Dell interview process are Technical, One-on-one Round and HR.
How to prepare for Dell Principal Software Engineer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Dell. The most common topics and skills that interviewers at Dell expect are Java, Python, Javascript, Software Engineering and Software Development.
What are the top questions asked in Dell Principal Software Engineer interview?

Some of the top questions asked at the Dell Principal Software Engineer interview -

  1. How do you handle critical application incide...read more
  2. Solid principal with example, Design patte...read more
  3. How application CICD wor...read more

Tell us how to improve this page.

Overall Interview Experience Rating

4.5/5

based on 10 interview experiences

Difficulty level

Moderate 100%

Duration

Less than 2 weeks 71%
2-4 weeks 29%
View more

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Dell Principal Software Engineer Salary
based on 1.1k salaries
₹28.2 L/yr - ₹52 L/yr
12% more than the average Principal Software Engineer Salary in India
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Dell Principal Software Engineer Reviews and Ratings

based on 93 reviews

4.0/5

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3.9

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4.3

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3.7

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3.2

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4.1

Company culture

3.4

Promotions

3.8

Work satisfaction

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