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CGI Group Software Engineer Interview Questions and Answers

Updated 6 May 2025

40 Interview questions

A Software Engineer was asked 8mo ago
Q. What are the types of marker interfaces?
Ans. 

Marker interfaces are used to indicate a specific property or behavior of a class without defining any methods.

  • Marker interfaces do not contain any methods or fields.

  • They are used to provide metadata about a class.

  • Common examples include Serializable and Cloneable in Java.

  • They help in implementing design patterns like Singleton.

A Software Engineer was asked 8mo ago
Q. What is the time complexity of a hashmap?
Ans. 

Time complexity of hashmap operations is O(1) on average, but can be O(n) in worst case.

  • HashMap operations like get, put, remove have constant time complexity O(1) on average due to hashing

  • In worst case scenario, all keys hash to the same bucket resulting in linear search O(n)

  • Rehashing occurs when load factor exceeds a threshold, increasing time complexity temporarily

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A Software Engineer was asked 8mo ago
Q. Name two design patterns used in the project.
Ans. 

Two common design patterns used in projects are Singleton and Observer patterns.

  • Singleton pattern ensures a class has only one instance and provides a global point of access to it.

  • Observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.

A Software Engineer was asked 8mo ago
Q. What are the different scopes of Spring beans?
Ans. 

Spring beans can have different scopes like singleton, prototype, request, session, and application.

  • Singleton scope: Bean is created only once per Spring IoC container

  • Prototype scope: Bean is created each time it is requested

  • Request scope: Bean is created once per HTTP request

  • Session scope: Bean is created once per HTTP session

  • Application scope: Bean is created once per ServletContext

A Software Engineer was asked 8mo ago
Q. How can you improve the performance of your Spring Boot application?
Ans. 

To improve performance of a Spring Boot application, consider optimizing database queries, caching, using asynchronous processing, and monitoring performance metrics.

  • Optimize database queries by using indexes, avoiding N+1 queries, and limiting the amount of data fetched.

  • Implement caching to store frequently accessed data in memory, reducing the need to fetch data from the database repeatedly.

  • Use asynchronous proc...

A Software Engineer was asked 8mo ago
Q. How did you implement logging in your Spring Boot application?
Ans. 

Implemented logging in Spring Boot application using SLF4J and Logback

  • Added dependencies for SLF4J and Logback in pom.xml

  • Configured logback.xml for logging levels and appenders

  • Injected Logger instances using @Autowired annotation in classes

  • Used logger.debug(), logger.info(), logger.error() methods for logging

A Software Engineer was asked 9mo ago
Q. Sort the list of car models in reverse order.
Ans. 

Sort the list of car models in reverse order

  • Use a sorting algorithm like bubble sort or quicksort to rearrange the array in reverse order

  • Alternatively, use built-in functions like sort() with a custom comparator function to achieve the same result

Are these interview questions helpful?
A Software Engineer was asked 10mo ago
Q. A singleton can be broken by cloning. How can this be prevented?
Ans. 

To prevent Singleton from being broken by cloning, we can override the clone method and throw an exception.

  • Override the clone method in the Singleton class and throw an exception to prevent cloning.

  • Alternatively, you can return the same instance in the clone method instead of creating a new instance.

  • Use serialization and deserialization to create a new instance of the Singleton class.

A Software Engineer was asked 10mo ago
Q. Remove repeating letters in a string using streams.
Ans. 

Use streams to remove repeating letters in a string

  • Convert the string to a character array

  • Use a stream to filter out repeating characters

  • Collect the characters back into a string

A Software Engineer was asked 11mo ago
Q. Given an integer, return the reversed integer.
Ans. 

To reverse a number, convert it to a string, reverse the string, and convert it back to a number.

  • Convert the number to a string

  • Reverse the string

  • Convert the reversed string back to a number

CGI Group Software Engineer Interview Experiences

82 interviews found

Software Engineer Interview Questions & Answers

user image Praveen Tyagi

posted on 18 Nov 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Oops concept,extension method ,constructors,arrays
  • Q2. Multithreading ,singleton,extension method,middleware
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview in May 2024.

Round 1 - Technical 

(2 Questions)

  • Q1. Core Java Based, Exception handling
  • Q2. Sql related- DML,DDL,SQL and Related to Joins, Views, etc
Round 2 - Technical 

(1 Question)

  • Q1. More of project related with hiring manager
Round 3 - Technical 

(1 Question)

  • Q1. Onsite people interviewed me, more Related to current project and experience
Round 4 - HR 

(1 Question)

  • Q1. Discussion regarding compensation and other benefits

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well and focus, Presence of mind is important to tackle their questions effectively.
All the best!
You're the best!
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I appeared for an interview in Mar 2025, where I was asked the following questions.

  • Q1. Many questions on dotnet fullstack development questions on writing sql queries, linq, C#, asp.net, asp.net MVC
  • Q2. Many questions model binding, how we get backed data to the frontend using EF
Interview experience
4
Good
Difficulty level
Easy
Process Duration
-
Result
-

I applied via Campus Placement

Round 1 - One-on-one 

(1 Question)

  • Q1. Sort the list of car model in reverse order
  • Ans. 

    Sort the list of car models in reverse order

    • Use a sorting algorithm like bubble sort or quicksort to rearrange the array in reverse order

    • Alternatively, use built-in functions like sort() with a custom comparator function to achieve the same result

  • Answered by AI
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed in Jul 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Singleton can be broken by cloning, how to prevent it?
  • Ans. 

    To prevent Singleton from being broken by cloning, we can override the clone method and throw an exception.

    • Override the clone method in the Singleton class and throw an exception to prevent cloning.

    • Alternatively, you can return the same instance in the clone method instead of creating a new instance.

    • Use serialization and deserialization to create a new instance of the Singleton class.

  • Answered by AI
  • Q2. Remove repeating letters in a string using streams

Skills evaluated in this interview

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

(1 Question)

  • Q1. Basic Qns related to c# , angular and sql
Round 2 - Technical 

(1 Question)

  • Q1. Scenario based complex coding question Advanced questions on c#
Round 3 - One-on-one 

(1 Question)

  • Q1. Managerial Round
Round 4 - HR 

(2 Questions)

  • Q1. Relocation and other formalities
  • Q2. Basic HR questions

Software Engineer Interview Questions & Answers

user image Bhavya Pasupu

posted on 2 May 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
Selected Selected
Round 1 - Technical 

(1 Question)

  • Q1. Oops concepts like Abstraction and Interface
Round 2 - Technical 

(2 Questions)

  • Q1. Visual studio project creation steps
  • Ans. 

    Visual Studio project creation involves several steps to set up a new project.

    • Open Visual Studio IDE

    • Click on 'File' > 'New' > 'Project'

    • Select the project type (e.g. Console Application, Web Application)

    • Choose the programming language (e.g. C#, VB.NET)

    • Specify project name, location, and solution name

    • Click 'Create' to generate the project files

  • Answered by AI
  • Q2. Visual studio > file > new > project name
  • Ans. 

    Creating a new project in Visual Studio involves navigating to File > New > Project and providing a name for the project.

    • Navigate to File menu in Visual Studio

    • Select New option

    • Choose Project option

    • Enter a name for the project

  • Answered by AI
Round 3 - HR 

(2 Questions)

  • Q1. Challenge faced
  • Ans. 

    Faced a challenge in optimizing a legacy system, requiring innovative solutions and collaboration with cross-functional teams.

    • Identified performance bottlenecks in the legacy system, which caused slow response times.

    • Collaborated with the team to refactor critical components, improving efficiency by 30%.

    • Implemented automated testing to ensure new changes did not introduce bugs.

    • Conducted regular code reviews to maintain ...

  • Answered by AI
  • Q2. Explained challenge faced
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Lambda function, dictionary in python
  • Q2. Traverse json. Args and kwargs
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Basics on all the core concepts of pega
  • Q2. Scenario based questions which are easy to answer if we have good practical o
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Technical interview with basic questions about java , c languages

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Interview Tips & Stories
2w
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·
works at
Cvent
Can speak English, can’t deliver in interviews
I feel like I can't speak fluently during interviews. I do know english well and use it daily to communicate, but the moment I'm in an interview, I just get stuck. since it's not my first language, I struggle to express what I actually feel. I know the answer in my head, but I just can’t deliver it properly at that moment. Please guide me
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CGI Group Interview FAQs

How many rounds are there in CGI Group Software Engineer interview?
CGI Group interview process usually has 2-3 rounds. The most common rounds in the CGI Group interview process are Technical, Resume Shortlist and HR.
How to prepare for CGI Group 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 CGI Group. The most common topics and skills that interviewers at CGI Group expect are CGI, SQL, Javascript, PLSQL and Agile.
What are the top questions asked in CGI Group Software Engineer interview?

Some of the top questions asked at the CGI Group Software Engineer interview -

  1. 1,Diff bwn aggregation and composition? 2,w a p to print fibnoci sries? with re...read more
  2. how can you improve performance of your spring boot applicat...read more
  3. how did you implement logging in your springboot applicat...read more
What are the most common questions asked in CGI Group Software Engineer HR round?

The most common HR questions asked in CGI Group Software Engineer interview are -

  1. Where do you see yourself in 5 yea...read more
  2. What are your salary expectatio...read more
  3. Why should we hire y...read more
How long is the CGI Group Software Engineer interview process?

The duration of CGI Group Software Engineer interview process can vary, but typically it takes about less than 2 weeks to complete.

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Overall Interview Experience Rating

4.2/5

based on 72 interview experiences

Difficulty level

Easy 24%
Moderate 71%
Hard 5%

Duration

Less than 2 weeks 76%
2-4 weeks 16%
4-6 weeks 3%
6-8 weeks 3%
More than 8 weeks 3%
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CGI Group Software Engineer Salary
based on 8.4k salaries
₹5 L/yr - ₹12 L/yr
11% less than the average Software Engineer Salary in India
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based on 1k reviews

4.1/5

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3.8

Skill development

4.2

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3.4

Salary

4.2

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4.2

Company culture

3.2

Promotions

3.8

Work satisfaction

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