Upload Button Icon Add office photos
Engaged Employer

i

This company page is being actively managed by Groupon Team. If you also belong to the team, you can get access from here

Groupon Verified Tick

Compare button icon Compare button icon Compare

Filter interviews by

Groupon Software Engineer Interview Questions and Answers

Updated 7 Dec 2024

Groupon Software Engineer Interview Experiences

2 interviews found

Software Engineer Interview Questions & Answers

user image Vaishnavi Mishra

posted on 7 Dec 2024

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

I applied via Referral and was interviewed in Jun 2024. There were 3 interview rounds.

Round 1 - Coding Test 

Hackerrank Coding Test, Leetcode medium questions

Round 2 - Coding Test 

HLD test, was asked to design an online coding platform like leetcode

Round 3 - Technical 

(2 Questions)

  • Q1. Most interesting project you have worked on
  • Q2. How do you handle conflict at workplace

Interview Preparation Tips

Interview preparation tips for other job seekers - - Prepare leetcode medium
- Prepare HLD well
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed before Feb 2023. There were 2 interview rounds.

Round 1 - Coding Test 

PS DSA, Maps, Linked List, Trees

Round 2 - Assignment 

Had to write an application which processes 5TBs of data in Distributed manner

Interview Preparation Tips

Interview preparation tips for other job seekers - DSA round will be easy. But prepare well for both HLD and LLD rounds.

Software Engineer Interview Questions Asked at Other Companies

asked in Qualcomm
Q1. Bridge and torch problem : Four people come to a river in the nig ... read more
asked in Capgemini
Q2. In a dark room,there is a box of 18 white and 5 black gloves. You ... read more
asked in TCS
Q3. Find the Duplicate Number Problem Statement Given an integer arra ... read more
Q4. Tell me something about yourself. Define encapsulation. What is i ... read more
asked in Paytm
Q5. Puzzle : 100 people are standing in a circle .each one is allowed ... read more

Interview questions from similar companies

Interview Preparation Tips

Round: Round 1:
Experience: It was 5 question screening round which was meant to know about my expectations from the organization.

Round: Round 2:
Experience: Online Coding round on Hackerrank3 coding coding questions:
– Run length Encoding of string with slight modification
– Finding buying day and selling day for a given set of days such that the profit of the buyer is maximum .
– Given a set of keywords and a long string, break the long string such that the split words are from the keywords onlyQuestions were fairly simple but test cases were very nice.

Round: Round 3:
Experience: 1st InterviewThe interview went for about 1 hr and was completely technical. The questions asked were:
– Given a binary tree how would you identify whether it is a Binary Search tree or not?
I gave the answer using inorder traversal.– given a bst, convert it to a binary tree such that each element is replaced by the sum of all the elements greater than it?– Given an employee table with employee name and salary find the 2nd highest salary.
I gave the vague answer of using inner query then he asked if instead of 2nd its nth highest then what would I do. After sometime I asked for the keyword (which was LIMIT) and then I wrote the query which was almost syntactically correct.– The answer to the question of binary tree, he asked me if I could solve it without using any space (my previous solution took O(n) space)?
I was writing the solution and in between he said to stop and asked me if I have any question.

Round: Round 4: Java application development
Experience: Imagine we have an Email Queue table in our database with each row representing an email that needs sending. Table Name: EmailQueue Columns: id, from_email_address, to_email_address, subject, body (you can also add columns as you wish, but at minimum it should have these columns). Write a java program that will read from this table and send the emails over an SMTP server (not local unix mail). For the SMTP sending you can use a pre-existing library of your choice, if you wish. Please take into consideration the following:Speed is of the utmost concern. Imagine we have 1 million emails to send. Your code should not sequentially send one email after another.Your solution should scale. In other words, if we determine the fastest we can send emails from a single server is 300 emails/second I should be able to run the same Java program on another server and be able to send another 300 emails/second.Your code should be careful to ensure that it is not possible for the same email to be sent twice (especially when running multiple processes of the program).Don’t worry about whether the SMTP server can handle the load. It can.Order emails are sent is not necessarily important. In other words, even though I’m calling this a “queue” it’s not important to guarantee that emails are sent in the order they arequeued.Comment your code extensively.Once again, speed is the primary concern. So do remember to think about what the slow points in the email sending process could be and take efforts to minimize those pain points.Send me instructions on how to compile/run/test your code along with the code itself. Also the sql statements for me to create the table that you are working with and the sql statements to insert a few test emails.

Round: Round 5: Final interview
Experience: It was of about 1 hr on soft and technical skills. Questions asked include:– Tell be about yourself?
– given an array. find the pattern it follows? there can be 4 patterns only: increasing, decreasing, increase then decrease and decrease then increase.
– Given an array of distinct positive numbers find the maximum sum of elements such that no 2 elements occurring in the maximum sum set is adjacent to each other.
I gave an incorrect answer and then I realised it, so I asked to rectify and she allowed me to do so.
– How can you improve suggestions of coupons to the users?
This discussion went for about 20 mins.

College Name: NA

Interview Questionnaire 

8 Questions

  • Q1. Given a binary tree how would you identify whether it is a Binary Search tree or not?
  • Ans. 

    To identify whether a binary tree is a Binary Search Tree or not.

    • Check if the left subtree is a Binary Search Tree

    • Check if the right subtree is a Binary Search Tree

    • Check if the root node is greater than all the nodes in the left subtree

    • Check if the root node is less than all the nodes in the right subtree

  • Answered by AI
  • Q2. Solve it without using array (in case the solution is - Inorder traversal should be in sorted order)?
  • Ans. 

    Solution for inorder traversal in sorted order without using array

    • Implement a binary search tree and perform inorder traversal

    • Use a stack to simulate the recursive function call stack

    • Maintain a variable to keep track of the previously visited node

    • Compare the current node with the previously visited node to check if it is in sorted order

  • Answered by AI
  • Q3. Given a BST, convert it to a binary tree such that each element is replaced by the sum of all the elements greater than it?
  • Ans. 

    Convert a BST to a binary tree with each element replaced by sum of all greater elements.

    • Traverse the BST in reverse inorder and keep track of the sum of all greater elements.

    • Replace each node's value with the sum and update the sum.

    • Recursively perform the above steps on left and right subtrees.

    • Time complexity: O(n), Space complexity: O(h) where h is the height of the tree.

  • Answered by AI
  • Q4. Given an employee table with employee name and salary find the 2nd highest salary in sql?
  • Ans. 

    Find the 2nd highest salary from an employee table in SQL.

    • Use the SELECT statement to retrieve the salaries in descending order.

    • Use the LIMIT keyword to limit the result set to the second row.

    • Use a subquery to exclude the highest salary from the result set.

  • Answered by AI
  • Q5. Tell be about yourself?
  • Ans. 

    I am a software engineer with experience in developing web applications and a passion for problem-solving.

    • Experienced in developing web applications using languages such as Java, Python, and JavaScript

    • Proficient in using frameworks such as Spring, Django, and React

    • Strong problem-solving skills and ability to work in a team environment

    • Passionate about learning new technologies and keeping up with industry trends

  • Answered by AI
  • Q6. Given an array. find the pattern it follows? there can be 4 patterns only: increasing, decreasing, increase then decrease and decrease then increase
  • Ans. 

    Given an array, determine if it follows one of four patterns: increasing, decreasing, increase then decrease, or decrease then increase.

    • Iterate through the array and compare each element to the previous one.

    • If all elements are increasing, it follows the increasing pattern.

    • If all elements are decreasing, it follows the decreasing pattern.

    • If there is a point where the elements start decreasing after increasing, it follow...

  • Answered by AI
  • Q7. Given an array of distinct positive numbers find the maximum sum of elements such that no 2 elements occurring in the maximum sum set is adjacent to each other
  • Ans. 

    Given an array of distinct positive numbers, find the maximum sum of non-adjacent elements.

    • Use dynamic programming to keep track of the maximum sum at each index

    • At each index, choose between including the current element or skipping it

    • The maximum sum at index i is the maximum of the sum including i-2 and i or the sum excluding i

    • Return the maximum sum at the last index

  • Answered by AI
  • Q8. How can you improve suggestions of coupons to the users?
  • Ans. 

    Use machine learning algorithms to analyze user behavior and preferences to suggest personalized coupons.

    • Collect user data such as purchase history, search history, and demographics

    • Use machine learning algorithms to analyze the data and identify patterns

    • Create personalized coupon suggestions based on the identified patterns

    • Regularly update and refine the algorithm to improve accuracy

    • Allow users to provide feedback on t

  • Answered by AI

Interview Preparation Tips

Round: Resume Shortlist
Tips: - Keep your resume as compact as possible- Try to keep requirements of the profile in your resume- Survey on how much the company is paying in the market and then state your expected CTC in the range of +/- 2 LPA.

Round: Test
Experience: 2 questions were a bit easy and the 3rd one was a little tricky for the people who are afraid of recursive programming. All the questions are provided in the link here: -----/
Tips: - Programming experience or programmer's help ( :p ) was the only way out of it.- Try to solve problems which you can solve first rather than hanging on any tough problem, because people solving 2/3 questions were also selected for the next round.
Duration: 90 minutes
Total Questions: 3

Round: Technical Interview
Experience: The interviewer was very helpful in guiding, motivating and giving me time to solve the problems. It went quite smoothly and within days I was selected for the next interview.
Tips: - Never speak without thinking unless said to speak what you are thinking.- Try to clarify your doubts before you jump into solving questions asked.- If you are taking any assumption, forget not to notify it to the interviewer.

Round: App development
Experience: I was made to develop a Java application within a week and submit it with proper documentation. It was very interesting app and I learned tons of things while developing.
Tips: - Try to do your task by yourself.- Keep your code as clean and OOP-like as possible- Make your friend read your documentation you prepared to know if it is understandable.- Use git or any other VCS while developing to ensure fallback in case the application breaks down (which usually happens during development).

Round: Technical Interview
Experience: This was exactly like a last gateway to cross for entering into the company. The interviewer was modest and calm, watching all my steps that I take while solving the problem. Twisting problems and guiding me to unwind the twists. At the end...a great experience!
Tips: Same as the above interview tips, nothing much is required for any technical interview (if you ask me).

Skills: Programming, Java application development, Learning/Grabbing new skills, SQL knowledge
College Name: NIT DURGAPUR
Motivation: Few points that motivated me: - Web development related work which is my area of interest.
- Company was a startup so a lot of work => lot of learning (crucial for starting career).- Pay was decent, so I can sustain my living and save something.
Funny Moments: It was my last interview and while I was solving a problem I wrote something wrong, and by mistake " f**k " came out of my mouth. The interviewer was on the phone and for some time I was just wondering if she heard that word, whether it would affect my interview result and all sort of things, rather than about the problem.
A suggestion: Please mind what comes out of your mouth ;)

Skills evaluated in this interview

Interview Preparation Tips

Round: Test
Experience: First round was a simple round which involved 10 multiple choice questions and 3 coding questions on hackerrank platform.

Round: Technical Interview
Experience: Mainly on topics like networks, data structures and algorithms, operating systems. The interviewers looked for people who have had prior experience in web development and asked questions regarding web development in depth too.
Tips: I recommend everyone to read the book titled, 'Cracking the Coding Interview' as it was helpful in my approach to an interview.

General Tips: The one major thing that would give you the edge in joining Myntra would definitely be exposure to web development. Since it is not a part of the curriculum , it's all the more important for you to familiarize yourself with web development. In fact, a few projects in the same field would put you in a very advantageous position to get the job.
Skill Tips: 1. Start your placement preparations well ahead, no point regretting later.
2. Keep a concise resume. Do not take your resume to several pages.
3. Do not neglect aptitude preparation. Many people do this mistake and end up not clearing the first round for several companies.
4. Be thorough with your basics across all subjects. (Do not neglect any subject, even they you may like a few and dislike the others.)
5. Keep in mind, the interviewers are really friendly and try to make sure that you're not nervous during the interview. All they want to do is to test you. Be confident and give it your best shot.
Skills:
College Name: NIT Surathkal
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Referral and was interviewed before Mar 2023. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Sort colours or the dutch flag problem
  • Ans. 

    The Dutch Flag problem involves sorting an array of strings with three possible values in a specific order.

    • Create three pointers to keep track of the boundaries of each color group

    • Iterate through the array and swap elements to group them in the correct order

    • Time complexity of O(n) can be achieved by a single pass through the array

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Approached by Company and was interviewed in Jun 2024. There were 3 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Rotate array leetcode question
  • Q2. Longest palindormic substring
  • Ans. 

    A palindrome is a word, phrase, number, or other sequence of characters that reads the same forward and backward.

    • Use dynamic programming to solve this problem efficiently.

    • Iterate through the string and expand around each character to find the longest palindrome.

    • Consider both odd and even length palindromes.

    • Example: Input 'babad', Output 'aba' or 'bab'.

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. Print all the subsequences of a string
  • Ans. 

    Generate all possible subsequences of a given string.

    • Use recursion to generate all possible combinations of characters in the string.

    • At each step, include or exclude the current character to form subsequences.

    • Store each subsequence in an array of strings.

  • Answered by AI
  • Q2. Print longest substring with k unique values
  • Ans. 

    Find and print the longest substring with k unique characters in an array of strings.

    • Iterate through the array of strings and keep track of the longest substring with k unique characters.

    • Use a sliding window approach to efficiently find the longest substring.

    • Keep a hashmap to store the frequency of characters in the current window.

    • Update the window boundaries based on the number of unique characters.

    • Return the longest

  • Answered by AI
Round 3 - HR 

(1 Question)

  • Q1. Behaviour quesions

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Approached by Company and was interviewed in Mar 2024. There was 1 interview round.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Rain water problem
  • Ans. 

    The rain water problem involves calculating the amount of rainwater that can be trapped between buildings or structures.

    • Calculate the maximum height of water that can be trapped at each position

    • Subtract the height of the building at each position to get the water level

    • Sum up the water levels at each position to get the total amount of trapped rainwater

  • Answered by AI
  • Q2. 2 sum problemjijo
Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

The written test consisted of two DS programs.

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

I applied via LinkedIn and was interviewed before Oct 2023. There were 2 interview rounds.

Round 1 - Aptitude Test 

1 hour in testing problem solving and basic math

Round 2 - Coding Test 

Coding round with graph and tree questions

Groupon Interview FAQs

How many rounds are there in Groupon Software Engineer interview?
Groupon interview process usually has 2-3 rounds. The most common rounds in the Groupon interview process are Coding Test, Assignment and Technical.
How to prepare for Groupon 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 Groupon. The most common topics and skills that interviewers at Groupon expect are MySQL, Postgresql, Software Engineering, Java and SQLite.
What are the top questions asked in Groupon Software Engineer interview?

Some of the top questions asked at the Groupon Software Engineer interview -

  1. How do you handle conflict at workpl...read more
  2. Most interesting project you have worked...read more

Tell us how to improve this page.

Groupon Software Engineer Interview Process

based on 2 interviews

Interview experience

4.5
  
Good
View more
Groupon Software Engineer Salary
based on 13 salaries
₹14.8 L/yr - ₹34 L/yr
177% more than the average Software Engineer Salary in India
View more details

Groupon Software Engineer Reviews and Ratings

based on 3 reviews

4.1/5

Rating in categories

3.9

Skill development

5.0

Work-life balance

4.1

Salary

3.2

Job security

3.9

Company culture

3.2

Promotions

4.1

Work satisfaction

Explore 3 Reviews and Ratings
Customer Service Representative
231 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Customer Service Executive
122 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Customer Support Executive
78 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Customer Support Representative
72 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Senior Customer Service Representative
71 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Explore more salaries
Compare Groupon with

Amazon

4.1
Compare

Google

4.4
Compare

Nearbuy

4.6
Compare

Rakuten

3.6
Compare
Did you find this page helpful?
Yes No
write
Share an Interview