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G4S Software Engineer Interview Questions and Answers

Updated 22 Jul 2024

G4S Software Engineer Interview Experiences

1 interview found

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Basic questions on maths related parts and analysis skills

Round 2 - Coding Test 

Coding questions from various Data Structure parts like linkedList stack queue

Interview questions from similar companies

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

(2 Questions)

  • Q1. Explain collection framework and uses
  • Ans. 

    Collection framework is a set of interfaces and classes in Java that provide a way to store and manipulate groups of objects.

    • Provides interfaces like List, Set, Map for storing collections of objects

    • Includes classes like ArrayList, HashSet, HashMap for implementing these interfaces

    • Allows for easy manipulation, sorting, searching, and iteration of collections

    • Used in various applications like data processing, data storag

  • Answered by AI
  • Q2. Explain springboot and it's annotation
  • Ans. 

    Spring Boot is a Java-based framework used for creating standalone, production-grade Spring-based applications.

    • Spring Boot simplifies the process of creating Spring applications by providing defaults for configuration and eliminating the need for XML configuration files.

    • Annotations in Spring Boot are used to simplify the configuration of Spring applications by providing metadata about the application.

    • Examples of annota...

  • Answered by AI

Skills evaluated in this interview

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

I applied via Recruitment Consulltant and was interviewed in Jun 2024. There was 1 interview round.

Round 1 - HR 

(2 Questions)

  • Q1. What are the responsibilities of a Data Analyst?
  • Ans. 

    Data Analysts are responsible for collecting, processing, and analyzing data to help organizations make informed decisions.

    • Collecting and organizing data from various sources

    • Cleaning and processing data to ensure accuracy and consistency

    • Analyzing data using statistical techniques and tools

    • Creating visualizations and reports to present findings

    • Interpreting data to provide insights and recommendations

    • Collaborating with s...

  • Answered by AI
  • Q2. Software engineer

I was interviewed in Jan 2021.

Round 1 - Coding Test 

(2 Questions)

Round duration - 126 minutes
Round difficulty - Hard

This round consist of coding questions as well as mcqs based on aptitude as well as some domain sections. This round is hard.

  • Q1. 

    Maximum Path Sum in a Matrix

    Given an N*M matrix filled with integer numbers, determine the maximum sum that can be obtained from a path starting from any cell in the first row to any cell in the last row...

  • Ans. 

    Find the maximum sum path in a matrix from top row to bottom row by moving down or diagonally.

    • Use dynamic programming to keep track of maximum sum at each cell.

    • At each cell, consider the maximum sum from the cell above, left diagonal, and right diagonal.

    • Add the current cell value to the maximum of the three possibilities.

    • Repeat this process for all cells in the matrix to find the maximum sum path.

  • Answered by AI
  • Q2. 

    Boolean Matrix Transformation Challenge

    Given a 2-dimensional boolean matrix mat of size N x M, your task is to modify the matrix such that if any element is 1, set its entire row and column to 1. Specifi...

  • Ans. 

    Modify a boolean matrix such that if any element is 1, set its entire row and column to 1.

    • Iterate through the matrix to find elements with value 1

    • Store the row and column indices of these elements

    • Update the entire row and column for each element found to be 1

  • Answered by AI
Round 2 - Video Call 

(1 Question)

Round duration - 45 minutes
Round difficulty - Easy

In this round the interviewer ask few questions related to domain and at last he ask some behavioral questions.

  • Q1. 

    Intersection of Linked List Problem

    You are provided with two singly linked lists containing integers, where both lists converge at some node belonging to a third linked list.

    Your task is to determine t...

  • Ans. 

    Find the node where two linked lists merge, return -1 if no merging occurs.

    • Traverse both lists to find the lengths and the last nodes

    • Align the starting points of the lists by adjusting the pointers

    • Traverse both lists simultaneously until a common node is found

  • Answered by AI

Interview Preparation Tips

Professional and academic backgroundI applied for the job as Software Engineer in DelhiEligibility criteriaNo criteriaQuess Corp interview preparation:Topics to prepare for the interview - Data structures knowledge, OOPs, Pointers, Dynamic programming and Recursion, Graphs, Hashmaps and Priority Queues, Operating system, DBMS, Networking, Arrays, Strings, Stacks, Trees, Pointers, OS Kernel, Deadlock, Virtual Memory, Memory Management, Paging, Segmentation, Puzzles and aptitudeTime required to prepare for the interview - 4 monthsInterview preparation tips for other job seekers

Tip 1 : Be calm and have confidence . Confidence is the key to crack any interview. 
Tip 2 : Try to give maximum time on basics of a topic 
Tip 3 : Practice interview questions
Tip 4 : Do atleast 2 projects

Application resume tips for other job seekers

Tip 1 : Put only those skills in resume which the company requires, but don't put false information in resume
Tip 2 : Write only those things in resume in which you are 100% confident
Tip 3 : Have projects in resume and prepare well for it
Tip 4 : Keep it short and crisp.
Tip 5 : Focus on important things in resume

Final outcome of the interviewSelected

Skills evaluated in this interview

I applied via Naukri.com and was interviewed before May 2018. There were 5 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Questions are related to your past working experience and the position that you applied for Microwave Transmission related questions: What is Microwave and types What is fadind and it's resolution steps D...
  • Q2. PDH-SDH related questions- Difference between PDH and sdh Frame structure of sdh High order and low order bytes and alarms related to bytes Alarms in sdh Ethernet over sdh What is GFP, ENCAPSULATION, VCAT,...
  • Q3. Generally your current work related questions Why you want to change your job What is your expectations from new job Where you seeing your self after 5 year's Current salary and expectations

Interview Preparation Tips

Round: HR Round
Experience: Related to offer they are giving and related cross questions

General Tips: I had been interviewed with Huawei in 2016 and total 2 rounds was there for me. Questions I already had shared, go through it.

I got my offer letter after 1 month after HR discussion but please follow up with HR team once you get call for your selection
Skills: Ethernet over SDH, SDH, Microwave, Technical Knowledge(ML, Microwave, Communication, Presentation Skills
Duration: 1-3 Months
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in Apr 2023. There were 5 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 Resume tips
Round 2 - Aptitude Test 

Standard DSA problems

Round 3 - Technical 

(1 Question)

  • Q1. Java questions, DBs
Round 4 - HR 

(1 Question)

  • Q1. Culture fit for startup
  • Ans. 

    Culture fit for a startup is crucial for success.

    • Startup culture is often fast-paced and dynamic.

    • Employees need to be adaptable and willing to take on multiple roles.

    • Collaboration and teamwork are highly valued.

    • Innovation and creativity are encouraged.

    • Open communication and transparency are important.

    • A strong work ethic and dedication are necessary.

    • Risk-taking and learning from failures are embraced.

    • Passion and drive f

  • Answered by AI
Round 5 - One-on-one 

(1 Question)

  • Q1. Leadership qualities in the current role
  • Ans. 

    Demonstrated leadership qualities in current role

    • Led a team of 5 developers to successfully complete a project ahead of schedule

    • Took initiative to organize weekly team meetings to discuss progress and address any challenges

    • Mentored junior team members, providing guidance and support to help them improve their skills

    • Collaborated with cross-functional teams to ensure smooth coordination and effective communication

    • Took ow...

  • Answered by AI
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Find the middle element whose left and right sum is equal
  • Ans. 

    Iterate through array to find middle element with equal left and right sum

    • Iterate through array and calculate sum of elements on left and right of each element

    • Return element if left sum equals right sum

    • Handle edge cases like array with less than 3 elements

  • Answered by AI

Skills evaluated in this interview

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

(1 Question)

  • Q1. Basic oops concept
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Print the largest string from the given 5 strings
  • Ans. 

    Find the largest string from a given array of 5 strings

    • Iterate through the array of strings and compare the length of each string

    • Keep track of the largest string found so far

    • Return the largest string at the end

  • Answered by AI
  • Q2. Check if the required dropdown option is displayed or not
  • Ans. 

    Use Selenium WebDriver to locate the dropdown element and check if the required option is displayed

    • Locate the dropdown element using Selenium WebDriver

    • Use the Select class to interact with the dropdown

    • Verify if the required option is displayed using isSelected() method

  • Answered by AI
Interview experience
1
Bad
Difficulty level
Easy
Process Duration
4-6 weeks
Result
Not Selected

I applied via LinkedIn and was interviewed in Mar 2024. There was 1 interview round.

Round 1 - Coding Test 

Basic coding questions that are available with just one google search

Interview Preparation Tips

Topics to prepare for Allegion Senior Software Engineer interview:
  • Inteviewbit
  • Google search
Interview preparation tips for other job seekers - Please don't consider this company unless you are casually looking for a job change, because even they are just casually looking for candidates and have no intentions of hiring.

Firstly the questions they asked for not suitable for a senior level role, the questions were very basic and more suited for a fresher or intern. And of course anybody can pass their technical rounds with ease.

Once that is done they'll call you to office for next 2 rounds, which a heavt waste of time for the candidates.

And finally they reject you saying you are suitable for a entry level role but not senior level.

If they don't ask questions that are suitable for senior role how will they be able to judge my expertise?

I requested them to evaluate me for one more round before taking that decision, they said we have other candidates in line, and they'll approach me if they don't find anyone.

3 months after the interview the role is still open on all the job portals, and they aren't even bothered to fill the position
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G4S Interview FAQs

How many rounds are there in G4S Software Engineer interview?
G4S interview process usually has 2 rounds. The most common rounds in the G4S interview process are Aptitude Test and Coding Test.

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G4S Software Engineer Interview Process

based on 1 interview

Interview experience

3
  
Average
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