Search

Interview Questions

  • Reviews
  • Salaries
  • Interview Questions
  • About Company
  • Benefits
  • Jobs
  • Office Photos
  • Community
+ Contribute
notification
notification
Login
Upload Button Icon Add office photos
Employer? Claim Account for FREE

Verifone

Compare button icon Compare button icon Compare
3.3

based on 204 Reviews

Play video Play video Video summary

Filter interviews by

Verifone Backend Engineer Lead Interview Questions and Answers

Updated 27 Apr 2022

7 Interview questions

A Backend Engineer Lead was asked
Q. Explain overloading and overriding with examples.
Ans. 

Overloading and overriding are two concepts in object-oriented programming that allow methods to have multiple implementations.

  • Overloading is when a class has multiple methods with the same name but different parameters.

  • Overriding is when a subclass provides a different implementation of a method that is already defined in its superclass.

  • Overloading is resolved at compile-time while overriding is resolved at runti...

A Backend Engineer Lead was asked
Q. Implement a push function for a queue using an array or ArrayList.
Ans. 

Implement Push Function for Queue using Array or ArrayList

  • Create a function that takes an array or ArrayList and a string as input

  • Add the string to the end of the array or ArrayList

  • Return the updated array or ArrayList

Backend Engineer Lead Interview Questions Asked at Other Companies

asked in Verifone
Q1. How do you create an ArrayList and add 5 numbers to it?
View answer (1)
asked in Verifone
Q2. How is a HASHMAP internally stored in Java?
View answer (1)
asked in Verifone
Q3. Implement a push function for a queue using an array or ArrayList ... read more
View answer (1)
asked in Verifone
Q4. Explain each pillar of OOPS with a real-life example
View answer (1)
asked in Verifone
Q5. What features did you implement?
View answer (1)
View All
A Backend Engineer Lead was asked
Q. What features did you implement?
Ans. 

I implemented various features including X, Y, and Z.

  • Implemented feature X which improved system performance by 20%

  • Developed feature Y which allowed for real-time data analysis

  • Added feature Z which improved user experience by simplifying the interface

A Backend Engineer Lead was asked
Q. Explain each pillar of OOPS with a real-life example
Ans. 

Explanation of OOPS pillars with real-life examples

  • Abstraction: Hiding implementation details, e.g. using a TV remote without knowing how it works

  • Encapsulation: Grouping related data and functions, e.g. a car's engine and transmission

  • Inheritance: Creating new classes from existing ones, e.g. a sports car class inheriting from a car class

  • Polymorphism: Using a single interface to represent multiple classes, e.g. a s...

A Backend Engineer Lead was asked
Q. How is a HASHMAP internally stored in Java?
Ans. 

HashMap in Java is internally stored as an array of linked lists.

  • HashMap uses hashing to store key-value pairs

  • Each key is hashed to an index in the array

  • If there are collisions, a linked list is used to store multiple values at the same index

  • The default initial capacity of HashMap is 16 and load factor is 0.75

  • HashMap is not thread-safe and requires synchronization for concurrent access

A Backend Engineer Lead was asked
Q. Write a program to print the Fibonacci sequence.
Ans. 

Print Fibonacci series

  • Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones

  • The first two numbers of the series are always 0 and 1

  • The series can be generated using a loop or recursion

  • Example: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181

A Backend Engineer Lead was asked
Q. How do you create an ArrayList and add 5 numbers to it?
Ans. 

Create an ArrayList and add 5 numbers to it.

  • Declare an ArrayList variable and initialize it

  • Use the add() method to add numbers to the ArrayList

  • Numbers can be of any data type (int, double, etc.)

  • Example: ArrayList<Integer> numbers = new ArrayList<>(); numbers.add(1);

  • Make sure to import the ArrayList class

Are these interview questions helpful?

Verifone Backend Engineer Lead Interview Experiences

1 interview found

Backend Engineer Lead Interview Questions & Answers

user image Anonymous

posted on 27 Apr 2022

Round 1 - Aptitude Test 

The duration of this round was around 20 minutes and there were 40 questions in total. This round consisted of standard mathematical, logical aptitude questions. Aptitude questions based on directions, speed and time, profit loss, etc. were asked. Out of 40 questions, around 15 questions were diagram based questions like finding the odd one, predicting the next pattern, etc.

Round 2 - Coding Test 

The Second Round is an Online coding test that lasts for around 30 minutes to 1 hour. It was held on the coder byte platform. There were around 5-6 MCQs and 1 Coding Question. MCQ Questions - Predict the output, find errors, Simple language-based questions etc. The Coding Question was from Arrays, Strings, etc. For Example, You are given a string like “ONE PLUS THREE MINUS TWO” and you will have to give output as “TWO”

They will give you a frontend or Backend role based on your performance in Interviews Rounds.

Round 3 - Technical 

(11 Questions)

  • Q1. 1. Heap theoretical questions were asked
    • Add your answer
  • Q2. 2. Linked List theoretical
    • Add your answer
  • Q3. 3. Reverse String was asked
    • Add your answer
  • Q4. 4. Print FIBONACCI series
  • Ans. 

    Print Fibonacci series

    • Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones

    • The first two numbers of the series are always 0 and 1

    • The series can be generated using a loop or recursion

    • Example: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181

    • Answered by AI
    Add your answer
  • Q5. 5. Make Push Function for Queue, implement it using Array or Arraylist
  • Ans. 

    Implement Push Function for Queue using Array or ArrayList

    • Create a function that takes an array or ArrayList and a string as input

    • Add the string to the end of the array or ArrayList

    • Return the updated array or ArrayList

    • Answered by AI
    Add your answer
  • Q6. 6. How to make an Arraylist and add 5 numbers in Arraylist
  • Ans. 

    Create an ArrayList and add 5 numbers to it.

    • Declare an ArrayList variable and initialize it

    • Use the add() method to add numbers to the ArrayList

    • Numbers can be of any data type (int, double, etc.)

    • Example: ArrayList<Integer> numbers = new ArrayList<>(); numbers.add(1);

    • Make sure to import the ArrayList class

    • Answered by AI
    Add your answer
  • Q7. 7. How is HASHMAP internally stored in Java?
  • Ans. 

    HashMap in Java is internally stored as an array of linked lists.

    • HashMap uses hashing to store key-value pairs

    • Each key is hashed to an index in the array

    • If there are collisions, a linked list is used to store multiple values at the same index

    • The default initial capacity of HashMap is 16 and load factor is 0.75

    • HashMap is not thread-safe and requires synchronization for concurrent access

    • Answered by AI
    Add your answer
  • Q8. 8. OOPS Pillars were asked
    • Add your answer
  • Q9. 9. Explain each pillar of OOPS with a real-life example
  • Ans. 

    Explanation of OOPS pillars with real-life examples

    • Abstraction: Hiding implementation details, e.g. using a TV remote without knowing how it works

    • Encapsulation: Grouping related data and functions, e.g. a car's engine and transmission

    • Inheritance: Creating new classes from existing ones, e.g. a sports car class inheriting from a car class

    • Polymorphism: Using a single interface to represent multiple classes, e.g. a shape ...

    • Answered by AI
    Add your answer
  • Q10. 10. Object and Classes
    • Add your answer
  • Q11. 11. Overloading and Overriding explain with examples
  • Ans. 

    Overloading and overriding are two concepts in object-oriented programming that allow methods to have multiple implementations.

    • Overloading is when a class has multiple methods with the same name but different parameters.

    • Overriding is when a subclass provides a different implementation of a method that is already defined in its superclass.

    • Overloading is resolved at compile-time while overriding is resolved at runtime.

    • Ex...

    • Answered by AI
    Add your answer
Round 4 - Behavioral 

(3 Questions)

  • Q1. 1. Why did you make this project?
    • Add your answer
  • Q2. 2. What all features did you implement?
  • Ans. 

    I implemented various features including X, Y, and Z.

    • Implemented feature X which improved system performance by 20%

    • Developed feature Y which allowed for real-time data analysis

    • Added feature Z which improved user experience by simplifying the interface

    • Answered by AI
    Add your answer
  • Q3. 3. How will you handle conflict within the team?
    • Add your answer

Interview Preparation Tips

Topics to prepare for Verifone Backend Engineer Lead interview:
  • DSA and OOPS
  • standard mathematical, logical a
  • diagram based questions like fin
  • Aptitude questions based on dire
Interview preparation tips for other job seekers - OOPS and DSA is most important. You must be familiar with all the DSA and Language-based topics. They are expecting someone who is ready to learn new technologies. If you don’t know any topic, then simply say you don’t know it, don’t lie during the interview.

Skills evaluated in this interview

Top trending discussions

View All
Interview Tips & Stories
1w
toobluntforu
·
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
Got a question about Verifone?
Ask anonymously on communities.

Interview questions from similar companies

Software Engineer Interview Questions & Answers

i-exceed technology solutions user image Anonymous

posted on 20 Oct 2024

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

I applied via Naukri.com and was interviewed in Apr 2024. There were 3 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. Question was related to Java like difference between abstract class and interface,how linked list ,hash map ,arraylist work internally
    • Add your answer
  • Q2. Question related to spring boot like @autowired annotations, how spring boot is different from spring
    • Add your answer
  • Q3. Coding questions: reverseString ,factorial using Recursion only,how to find middle element in LL
    • Add your answer
Round 2 - Technical 

(2 Questions)

  • Q1. Some basic questions related to JS and Java both
    • Add your answer
  • Q2. Managerial related questions,
    • Add your answer
Round 3 - Technical 

(2 Questions)

  • Q1. Promises ,async and await related questions
    • Add your answer
  • Q2. Question related to API ,and scenario based questions
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - This was the interview related to backend developer, so whatever skills you provide in resume.Make sure to prepare on them well

Backend Engineer Lead Interview Questions Asked at Other Companies

asked in Verifone
Q1. How do you create an ArrayList and add 5 numbers to it?
View answer (1)
asked in Verifone
Q2. How is a HASHMAP internally stored in Java?
View answer (1)
asked in Verifone
Q3. Implement a push function for a queue using an array or ArrayList ... read more
View answer (1)
asked in Verifone
Q4. Explain each pillar of OOPS with a real-life example
View answer (1)
asked in Verifone
Q5. What features did you implement?
View answer (1)
View All

Software Engineer Interview Questions & Answers

i-exceed technology solutions user image Anonymous

posted on 5 Oct 2021

I applied via Campus Placement and was interviewed before Oct 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Basics of java(OOP, strings and collections), college projects, and how I was involved in that projects.
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - The interview was a bit easy as the company came to college, they asked only the basics of java and my college projects and some HR-related questions like tell me about yourself and some time management questions about the projects and academics.

Software Engineer Interview Questions & Answers

i-exceed technology solutions user image Nikhil kumar

posted on 16 Oct 2023

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

I applied via Referral and was interviewed in Apr 2023. There were 6 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 - Coding Test 

First round was aptitude and 2 coding questions

Round 3 - Technical 

(2 Questions)

  • Q1. Second round was face to face was fully technical asked me code some basic code
    • Add your answer
  • Q2. Find 2nd largest decimal number from given numbers
  • Ans. 

    Iterate through the numbers and keep track of the largest and second largest numbers.

    • Iterate through the numbers and compare each number with the current largest and second largest numbers.

    • Update the second largest number if a new number is found that is greater than the current second largest number.

    • Return the second largest number at the end of the iteration.

    • Answered by AI
    Add your answer
Round 4 - One-on-one 

(1 Question)

  • Q1. Next was manager round it was also little technical
    • Add your answer
Round 5 - One-on-one 

(1 Question)

  • Q1. This round was with vice president
    • Add your answer
Round 6 - HR 

(1 Question)

  • Q1. This round was final round about salary negotiation and hr round
    • Add your answer

Software Engineer Interview Questions & Answers

i-exceed technology solutions user image Anonymous

posted on 12 Dec 2024

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

I applied via Campus Placement and was interviewed in Nov 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

Soo easy aptitude exam asked questions

Round 2 - Technical 

(3 Questions)

  • Q1. What is oops in Java,fibo, and sorting
  • Ans. 

    OOPs in Java refers to Object-Oriented Programming concepts, fibo likely refers to Fibonacci sequence, and sorting refers to arranging elements in a specific order.

    • OOPs in Java includes concepts like classes, objects, inheritance, polymorphism, and encapsulation.

    • Fibo likely refers to the Fibonacci sequence, where each number is the sum of the two preceding ones (e.g. 0, 1, 1, 2, 3, 5, ...).

    • Sorting involves arranging el...

    • Answered by AI
    Add your answer
  • Q2. Why is garbage collector is used in java etc more of java questions
    • Add your answer
  • Q3. Can main can be overloaded and overrided
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident and get your basics right

Software Engineer Interview Questions & Answers

PayU Payments user image Anonymous

posted on 14 Mar 2022

I appeared for an interview in Dec 2021.

Round 1 - Face to Face 

(2 Questions)

Round duration - 60 Minutes
Round difficulty - Medium

Time - afternoon. 
Interviewer jumped straight into interview, formal and comfortable environment. 
1. Interviewer introduction 
2. Interviewee introduction
3. Coding question 1 - difficulty medium, topic - arrays
- explain approach, write code (pseudo code is fine), dry run on given TCS. 
4. Coding question 2 - same as above, only question was different. Slightly more difficult but on arrays only. 
5. Questions on Python & Django - difficulty medium - write code related to queryset on django objects
6. SQL question to code - 10th highest salary.

  • Q1. 

    Reverse Only Letters Problem Statement

    You are given a string S. The task is to reverse the letters of the string while keeping non-alphabet characters in their original position.

    Example:

    Input:
    S = "...
  • Ans. 

    Reverse the letters of a string while keeping non-alphabet characters in their original position.

    • Iterate through the string and store the non-alphabet characters in their original positions

    • Reverse the letters of the string using two pointers technique

    • Combine the reversed letters with the non-alphabet characters to get the final reversed string

    • Answered by AI
    Add your answer
  • Q2. 

    Alternate Positive and Negative Numbers

    Given an array arr that contains an equal number of positive and negative elements, rearrange the given array such that positive and negative numbers are arranged a...

  • Ans. 

    Rearrange an array with equal positive and negative numbers alternatively while maintaining relative order.

    • Iterate through the array and separate positive and negative numbers into two separate arrays.

    • Merge the two arrays alternatively into the original array.

    • Ensure the relative order of positive and negative numbers is maintained.

    • Answered by AI
    Add your answer
Round 2 - Face to Face 

Round duration - 60 Minutes
Round difficulty - Medium

1. Intro of interviewer
2. Intro of interviewee
3. Questions on Python - decorators, static method, class methods
4. Principal of coding, best practices
5. Question on DB - What is indexing, how to improve, best use of indexing.
6. Questions on django - what is django ORM, What is sandbox, Django models, Django queries.
7. Previous job, what do you do, stack you work on.

Very friendly environment, very pleasing person, loved it.

Interview Preparation Tips

Professional and academic backgroundI applied for the job as Software Engineer in PuneEligibility criteria0-1 year experience.PayU interview preparation:Topics to prepare for the interview - Python, Django, Dynamic Programming, Arrays, Graphs, OS, CN, DBMS, SQL, System DesignTime required to prepare for the interview - 6 MonthsInterview preparation tips for other job seekers

Tip 1 : Good at coding (solving, explaining), especially Dynamic Programming questions like knapsack. Focus 70% time on coding
Tip 2 : Apply to jobs through referral not on company site. Very important. 
Tip 3 : Prepare good projects with how to explain in interview.
Tip 4 : Sound very energetic, competitive and some one with eager to learn, so they select you thinking you can be taught things as you have good attitude.
Remember : Good attitude in good coder > Bad attitude in expert coder.

Application resume tips for other job seekers

Tip 1 : Max three, projects, which are interesting to talk about, and you have won something for it. 
Tip 2 : Leave lot of white space, keep content small and in one page

Final outcome of the interviewSelected

Software Engineer Interview Questions & Answers

PayU Payments user image Anonymous

posted on 24 May 2024

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

(1 Question)

  • Q1. DSA round containing 2 coding questions along with some Java Questions
    • Add your answer
Round 2 - One-on-one 

(1 Question)

  • Q1. Design Round along with some puzzles
    • Add your answer
Round 3 - One-on-one 

(1 Question)

  • Q1. Managerial Round
    • Add your answer
Are these interview questions helpful?

Software Engineer Interview Questions & Answers

PayU Payments user image Anonymous

posted on 16 May 2025

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

I appeared for an interview before May 2024, where I was asked the following questions.

  • Q1. Second highest salary
    • Add your answer
  • Q2. Java SDK and DSA
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - NA

Software Engineer Interview Questions & Answers

PayU Payments user image Anonymous

posted on 14 Mar 2022

I appeared for an interview in Jun 2021.

Round 1 - Video Call 

(1 Question)

Round duration - 90 minutes
Round difficulty - Medium

Contained mix of coding, oops and general programming questions

Coding was live coding round
It was around 12pm
They used their own coding environment, I coded in java

  • Q1. 

    Maximum Subarray Sum Problem Statement

    Given an array arr of length N consisting of integers, find the sum of the subarray (including empty subarray) with the maximum sum among all subarrays.

    Explanation...

  • Ans. 

    Find the sum of the subarray with the maximum sum among all subarrays in an array of integers.

    • Iterate through the array and keep track of the maximum sum subarray seen so far.

    • Use Kadane's algorithm to efficiently find the maximum subarray sum.

    • Consider the case where all elements in the array are negative.

    • Handle the case where the array contains only one element.

    • Answered by AI
    Add your answer
Round 2 - Video Call 

(1 Question)

Round duration - 90 Minutes
Round difficulty - Hard

It was a collection of HLD AND LLD
Was around 12pm
This was conducted on bluejeans

  • Q1. Design a URL shortener with a database and all necessary components.
  • Ans. 

    Design a URL shortener with database and necessary components

    • Use a unique identifier for each URL to generate short links

    • Store the original URL and corresponding short link in a database

    • Implement a redirect mechanism to redirect short links to original URLs

    • Consider implementing analytics to track usage and performance

    • Ensure scalability and reliability of the system

    • Answered by AI
    Add your answer
Round 3 - Video Call 

Round duration - 60 Minutes
Round difficulty - Easy

It was a friendly managerial round with director of my team, he was very for me to come on board and explained truthfully how payu is.

Round 4 - HR 

(1 Question)

Round duration - 30 Minutes
Round difficulty - Easy

Just a normal HR discussion, he informed me that I've been selected and we discussed about the salary part

  • Q1. Can you describe your experience working in a corporate environment?
    • Add your answer

Interview Preparation Tips

Professional and academic backgroundI applied for the job as Software Engineer in BangaloreEligibility criteria2 years of job experiencePayU interview preparation:Topics to prepare for the interview - Data structure, Algorithm, HLD, LLD, Dynamic programming, GraphsTime required to prepare for the interview - 2 MonthsInterview preparation tips for other job seekers

Tip 1 : have strong grasp of graph based algorithms
Tip 2 : have strong knowledge of data structure 
Tip 3 : should be able to find where to use appropriate design pattern

Application resume tips for other job seekers

Tip 1 : keep it short and simple 
Tip 2 : focus more on design/architecture of project

Final outcome of the interviewSelected

Skills evaluated in this interview

Software Engineer Interview Questions & Answers

PayU Payments user image Anonymous

posted on 8 Dec 2024

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in Nov 2024. There were 2 interview rounds.

Round 1 - One-on-one 

(1 Question)

  • Q1. Just to know more about why i want the role
    • Add your answer
Round 2 - Coding Test 

Testing an payment flow on the application

More about working at Verifone

Verifone Interview FAQs

How many rounds are there in Verifone Backend Engineer Lead interview?
Verifone interview process usually has 4 rounds. The most common rounds in the Verifone interview process are Aptitude Test, Coding Test and Technical.

Tell us how to improve this page.

Verifone Interviews By Designations

Interview Questions for Popular Designations

Interview Questions from Similar Companies

FIS Interview Questions
3.9
 • 503 Interviews
PayPal Interview Questions
3.8
 • 224 Interviews
Visa Interview Questions
3.5
 • 146 Interviews
Broadridge Financial Solutions Interview Questions
3.9
 • 145 Interviews
MasterCard Interview Questions
3.9
 • 144 Interviews
Revolut Interview Questions
2.6
 • 103 Interviews
TransUnion Interview Questions
3.9
 • 93 Interviews
PayU Payments Interview Questions
3.5
 • 57 Interviews
i-exceed technology solutions Interview Questions
2.9
 • 37 Interviews
FNZ Interview Questions
2.8
 • 36 Interviews
View all
Verifone Salaries in India
Software Development Engineer
136 salaries
unlock blur

₹6.8 L/yr - ₹15.9 L/yr

Software Engineer
113 salaries
unlock blur

₹6.8 L/yr - ₹15 L/yr

Senior Software Engineer
65 salaries
unlock blur

₹9 L/yr - ₹25 L/yr

Software Development Engineer II
53 salaries
unlock blur

₹8.4 L/yr - ₹15.6 L/yr

Software Developer
51 salaries
unlock blur

₹5.7 L/yr - ₹16 L/yr

Explore more salaries
Compare Verifone with

FIS

3.9
Compare

Broadridge Financial Solutions

3.9
Compare

PayPal

3.8
Compare

MasterCard

3.9
Compare
Popular Calculators
Are you paid fairly?
Monthly In-hand Salary Calculator
Gratuity Calculator
HRA Calculator
Salary Hike Calculator
write
Share an Interview