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Zomato Software Developer Interview Questions, Process, and Tips

Updated 8 Nov 2024

Top Zomato Software Developer Interview Questions and Answers

  • Q1. Time to Burn Tree Problem You are given a binary tree consisting of 'N' unique nodes and a start node where the burning will commence. The task is to calculate the time ...read more
  • Q2. 1. bitwise OR of the sum of all the subsequence of the array [Hard] 2. course schedule II (leetcode question)
  • Q3. A hash function was written to convert a string into a hash. Write a un-hash function to revert it(from hash to string)?
View all 8 questions

Zomato Software Developer Interview Experiences

7 interviews found

Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Given an array of n numbers , find the kth largest find the sum from a th largest to bth largest n can be huge
  • Ans. 

    Find the sum of kth to bth largest numbers in a huge array efficiently.

    • Sort the array in descending order to easily find the kth and bth largest numbers.

    • Use a priority queue or min heap to efficiently find the kth and bth largest numbers without sorting the entire array.

    • Once you have the kth and bth largest numbers, iterate through the array and sum the numbers between them.

  • Answered by AI
  • Q2. Mostly elasticsearch related and company work related questions

Skills evaluated in this interview

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

I applied via Campus Placement and was interviewed in Oct 2024. There was 1 interview round.

Round 1 - Coding Test 

1.5 hours Coding Round conducted on HackerRank.

Software Developer Interview Questions Asked at Other Companies

asked in Amazon
Q1. Maximum Subarray Sum Problem Statement Given an array of integers ... read more
asked in Amazon
Q2. Minimum Number of Platforms Needed Problem Statement You are give ... read more
asked in Rakuten
Q3. Merge Two Sorted Arrays Problem Statement Given two sorted intege ... read more
asked in Cognizant
Q4. Nth Fibonacci Number Problem Statement Calculate the Nth term in ... read more
Q5. Find Duplicate in Array Problem Statement You are provided with a ... read more
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Referral and was interviewed in Jul 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

Genric aptitude questions also computer fundamentals like dbms

Round 2 - Coding Test 

DP questions, tree questions r there

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare medium questions atleast

I applied via Referral and was interviewed before Nov 2021. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - Coding Test 

Coding test was of 1:30 hour. Topic : Data structure and Algorithms, Platform : intervue.io

Round 3 - One-on-one 

(5 Questions)

  • Q1. 1. number of island (leetcode question [Medium]) 2. bitonic subsequence in an array (dp question)
  • Q2. 1. bitwise OR of the sum of all the subsequence of the array [Hard] 2. course schedule II (leetcode question)
  • Ans. 

    Two software development questions: bitwise OR of array subsequences and course schedule II.

    • Question 1 requires finding the bitwise OR of the sum of all subsequences of an array.

    • Question 2 is a LeetCode question about scheduling courses with prerequisites.

    • For question 1, we can use dynamic programming to find all subsequences and then calculate the bitwise OR.

    • For question 2, we can use a topological sort to determine t

  • Answered by AI
  • Q3. 1. oops, dbms, os questions 2. project discussions
  • Q4. HR : normal hr question (see the interviewbit hr question sheet it will be really very helpfull)
  • Q5. They have taken my last 10 min round just for clarifying the location preference and all.

Interview Preparation Tips

Topics to prepare for Zomato Software Developer interview:
  • Data Structures
  • Operating Systems
  • DBMS
  • SQL
Interview preparation tips for other job seekers - I would recommend do more and more practice on data structure & Algorithms from different website like leetcode, codechef because they ask sometimes the direct question from leetcode and other platforms.
Do brush up on the cs fundamentals as they are very important in the 2nd and 3rd round of the interview.
Project which are written on the resume should not be copied as they grill on resume.

Skills evaluated in this interview

Zomato interview questions for designations

 Software Developer Intern

 (3)

 IOS Software Developer

 (1)

 Senior Software Developer

 (1)

 Software Engineer

 (1)

 Software Development Engineer

 (3)

 Lamp Developer

 (1)

 SDE (Software Development Engineer)

 (2)

 Software Test Engineer Intern

 (1)

I was interviewed before Sep 2020.

Round 1 - Telephonic Call 

(1 Question)

Round duration - 60 minutes
Round difficulty - Medium

Medium level competitive programming question. Interviewer looked for the approach and working code.

  • Q1. 

    Time to Burn Tree Problem

    You are given a binary tree consisting of 'N' unique nodes and a start node where the burning will commence. The task is to calculate the time in minutes required to completely b...

  • Ans. 

    Calculate the time in minutes required to completely burn a binary tree starting from a given node.

    • Perform a depth-first search (DFS) to calculate the time taken to burn the entire tree.

    • Track the time taken to burn each node based on its distance from the starting node.

    • Consider the maximum time taken among all nodes as the total time to burn the entire tree.

  • Answered by AI
Round 2 - Telephonic Call 

Round duration - 40 minutes
Round difficulty - Medium

Timing : Evening
Interviewer was frank. He checked for indepth knowledge of the subject.

Interview Preparation Tips

Professional and academic backgroundI completed Software Engineering from Delhi Technological University. I applied for the job as SDE - 1 in GurgaonEligibility criteriaAbove 8.5 CGPAZomato interview preparation:Topics to prepare for the interview - Competitive Programming , DBMS , Object Oriented Programming , Operating Systems , System DesignTime required to prepare for the interview - 10 monthsInterview preparation tips for other job seekers

Tip 1 : Leave a subject to prepare, but never leave a topic.
Tip 2 : Must go through previous years questions / interview experiences.
Tip 3 : Atleast 4 projects in CV

Application resume tips for other job seekers

Tip 1 : At least 4 projects (working)
Tip 2 : Never put false things on resume.

Final outcome of the interviewSelected

Skills evaluated in this interview

Get interview-ready with Top Zomato Interview Questions

Software Developer Interview Questions & Answers

user image Gulshan Kumar

posted on 30 Nov 2015

I applied via Campus Placement

Interview Preparation Tips

Round: Resume Shortlist
Experience: They selected 10 students from our college from CS and IT .They are looking for guys with extra projects done during college .App development will be a bonus ,contribution to open source and competitive programming will help for shortlisting.
Some of my friends had research papers published and they too got selected.

Round: Test
Experience: Have to write code snippet for 4 questions in 45 minutes
1.Difference between hour hand and minute hand
2.longest palindromic sub string.
3.Product Array puzzle
4.Some question related to matrix

Tips: All question were from geeksforgeeks
So practice it well ..u will make through it

Round: Test
Experience: Long Discussion on projects
They will scan each and every line of your Resume ,so dont write bullshits..
I wrote about interest in AI and got screwed..Discussion on college projects and final year project.
Then asked me to design a snake and ladder game OOPS concepts
Told me to find sum of all elements of sub matrix..(hint pre-processing the matrix)
Asked me about sessions and cookies
Gave a query to write on database indexing (dont remember exactly)
Asked me the code of the difference between hour hand and minute hand and extended it wid the second hand
Asked me as how to implement a dictionary
asked about TRIES ,CODE SNIPPET ON THE SHARED DOCS
One of my friend was asked to implement (set) of STL
Tips: The interviewer was cool guy..helped me a lot always made me comfortable.Interact with them as much as possible

Round: Test
Experience: Wid the CTO of the company .
Started wid the projects again .ACID properties,Database transactions,Concurrency Control
Optimization in database.
Then he asked me to code a function
Given a hash function applied on letters of English words ,un-hash it.Took me 45 minutes to reach the solution ,he helped me a lot.
Asked me to write the code for diameter of a binary tree
Asked me write the code for Boolean Matrix
One of my friend was asked to a question in which there was a bug in a m*n matrix and we have to find the bug(hint dfs or bfs)
Tips: keep calm ,,just keep talking ad he will help u a lot...

Round: HR
Experience: This was the toughest round for me...I had cleared all the rounds but they rejected me in the HR round ,,,dont know where I screwed..Learn every thing of Zomato..
They offered me an internship and thereafter they would look to give a PPO ...!!!lets see what happens

Skills: Coding Skills And Knowledge On Data Structures
Duration: 3
College Name: NIT Srinagar

Interview Questionnaire 

9 Questions

  • Q1. Write a regex for email validation?
  • Ans. 

    Regex for email validation

    • Start with a string of characters followed by @ symbol

    • Followed by a string of characters and a period

    • End with a string of characters with a length of 2-6 characters

    • Allow for optional subdomains separated by periods

    • Disallow special characters except for . and _ in username

  • Answered by AI
  • Q2. Parse the XML? and store the output in JSON. Discussed different approaches?
  • Q3. Print prime numbers in a given range and optimize the solution?
  • Ans. 

    Print prime numbers in a given range and optimize the solution.

    • Use Sieve of Eratosthenes algorithm to generate prime numbers efficiently

    • Start with a boolean array of size n+1, mark all as true

    • Loop through the array and mark all multiples of each prime as false

    • Print all the indexes that are still marked as true

  • Answered by AI
  • Q4. Puzzle – 25 horses – 5 lanes, find fastest 3 horses?
  • Q5. Web related questions on Sessions and cookies?
  • Q6. A lot of discussion on my resume, experience etc
  • Q7. Find angle between hour hand and minute hand in clock if time is given? Write a program or pseudo code?
  • Ans. 

    Find angle between hour and minute hand in a clock given the time.

    • Calculate the angle made by the hour hand with respect to 12 o'clock position

    • Calculate the angle made by the minute hand with respect to 12 o'clock position

    • Find the difference between the two angles and take the absolute value

    • If the angle is greater than 180 degrees, subtract it from 360 degrees to get the smaller angle

  • Answered by AI
  • Q8. A hash function was written to convert a string into a hash. Write a un-hash function to revert it(from hash to string)?
  • Ans. 

    To un-hash a string, use a reverse algorithm to convert the hash back to the original string.

    • Create a reverse algorithm that takes the hash as input and outputs the original string

    • Use the same logic as the hash function but in reverse order

    • If the hash function used a specific algorithm, use the inverse of that algorithm to un-hash the string

  • Answered by AI
  • Q9. He discussed about expectations and role. Asked me if I have any questions. He said to me “yaha aana hai to marwani padegi. tyar ho”? I smiled and asked what are the work timings? He said 9-9 and I was kin...

Interview Preparation Tips

General Tips: I applied through a recruiter. Then I got a call from Zomato HR. It was for LAMP developer profile. She asked me about my profile and also shared some expectations from the role. She asked me to come for F2F rounds to take the process further
Skills: Web development, JSON, Algorithm
College Name: na
Motivation: Overall process was not very tough. But they have start up culture. People work their for 11-12 hours a day. Sometimes on Saturday as well. So people who are geeks or have nothing in life to do except their job can go and join

Skills evaluated in this interview

Interview questions from similar companies

I applied via Company Website and was interviewed in Sep 2020. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Fibonacci series, Prime function, linked lisk value access, query

Interview Preparation Tips

Interview preparation tips for other job seekers - First a test based on amcat. Followed by two technical interview. First Tech Interview basis and overview of you concept of ds and algo will ne asked. In second Tech interview indepth concept of topics such as arrays, linked list, os,algo, etc will be asked. Prepare ds and algo concept, dbms query & concept, internet basis such as protocols, methods,etc.

Best of luck

I was interviewed before Sep 2020.

Round 1 - Coding Test 

(1 Question)

Round duration - 90 minutes
Round difficulty - Easy

This was MCQ+Coding round.

  • Q1. How can you check if two strings are anagrams of each other?
  • Ans. 

    Check if two strings are anagrams by comparing the sorted versions of the strings.

    • Sort both strings and compare if they are equal.

    • Use a hashmap to store the frequency of characters in each string and compare the maps.

    • Ignore spaces and punctuation when comparing the strings.

  • Answered by AI
Round 2 - Face to Face 

Round duration - 90 minutes
Round difficulty - Easy

This was face to face interview round.

Round 3 - Face to Face 

Round duration - 90 minutes
Round difficulty - Easy

This was face to face interview round.

Interview Preparation Tips

Professional and academic backgroundI completed Computer Science Engineering from National Institute Of Technology, Silchar, Assam. I applied for the job as SDE - 1 in SiddharthnagarEligibility criteria6 CGPAAmazon interview preparation:Topics to prepare for the interview - Basic Computer Science backgroundTime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Participate in live contests on websites like Codechef, Codeforces etc as much as possible.
Tip 2 : Practice previous interview questions from LeetCode, GeeksForGeeks.
Tip 3 : Revise Computer Science subjects like DBMS, OOPS thoroughly.

Application resume tips for other job seekers

Add projects and Internships if you have done any and add only those things which you really know.

Final outcome of the interviewSelected

Skills evaluated in this interview

I was interviewed before Sep 2020.

Round 1 - Coding Test 

(1 Question)

Round duration - 90 Minutes
Round difficulty - Medium

Interview started at 11:00 am. It was an online round. During the coding round I submitted optimized solution and got full acceptance of the solutions.

  • Q1. 

    Detect Cycle in a Directed Graph

    You are provided with a directed graph composed of 'N' nodes. You have a matrix called 'EDGES' with dimensions M x 2, which specifies the 'M' edges in the graph. Each edge...

  • Ans. 

    Detect cycle in a directed graph using depth-first search (DFS) algorithm.

    • Use DFS to traverse the graph and detect back edges indicating a cycle.

    • Maintain a visited array to keep track of visited nodes during traversal.

    • If a node is visited again during traversal and it is not the parent node, then a cycle exists.

    • Return true if a cycle is detected, false otherwise.

  • Answered by AI
Round 2 - Face to Face 

(1 Question)

Round duration - 80 Minutes
Round difficulty - Medium

Interview started at 10:00 am. Interview went well, I was able to connect with the interviewer and enjoyed the whole interview

  • Q1. 

    Next Smallest Palindrome Problem Statement

    Find the next smallest palindrome strictly greater than a given number 'N' represented as a string 'S'.

    Explanation:

    You are given a number in string format, a...

  • Ans. 

    Find the next smallest palindrome greater than a given number represented as a string.

    • Convert the string to an integer, find the next greater palindrome, and convert it back to a string.

    • Handle cases where the number is a palindrome or has all digits as '9'.

    • Consider both odd and even length numbers when finding the next palindrome.

  • Answered by AI
Round 3 - Face to Face 

(1 Question)

Round duration - 80 Minutes
Round difficulty - Medium

Interview started at 11:00 am. Interview went well.

  • Q1. 

    Boundary Traversal of a Binary Tree

    Given a binary tree of integers, your task is to return the boundary nodes of the tree in Anti-Clockwise direction starting from the root node.

    Input:

    The first line ...
  • Ans. 

    Return the boundary nodes of a binary tree in Anti-Clockwise direction starting from the root node.

    • Traverse the left boundary nodes in a top-down manner

    • Traverse the leaf nodes from left to right

    • Traverse the right boundary nodes in a bottom-up manner

    • Handle cases where duplicates occur in the boundary nodes

    • Implement the function without printing as printing is already managed

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaGood knowledge of Data Structures, Some great projects which are used by the usersAmazon interview preparation:Topics to prepare for the interview - Data Structures, Web development, System Design, Algorithms, Dynamic Programming, Database, OS, Networking, OOPS, DevOpsTime required to prepare for the interview - 8 monthsInterview preparation tips for other job seekers

Tip 1 : For Data Structures number of questions doesn't matter. Try to understand the logic behind them and try to apply them in creating multiple scenario's. Learn them by heart. 
Tip 2 : For Web.Development Try to learn full stack development. See which part interests you more, Increase your knowledge horizon, Always try to build a system a system considering It will be served to millions of customers. By doing this 1-2 projects will increase and cover all the major things which one should learn in their career/college.

Application resume tips for other job seekers

Tip 1 : Always try to make it a single page 
Tip 2 : Always make resume company specific. eg. Data Structures part more if you are applying for MNC's eg. Amazon, Google, DE Shaw, browserstack.

Final outcome of the interviewSelected

Skills evaluated in this interview

Zomato Interview FAQs

How many rounds are there in Zomato Software Developer interview?
Zomato interview process usually has 1-2 rounds. The most common rounds in the Zomato interview process are Coding Test, Resume Shortlist and One-on-one Round.
What are the top questions asked in Zomato Software Developer interview?

Some of the top questions asked at the Zomato Software Developer interview -

  1. 1. bitwise OR of the sum of all the subsequence of the array [Hard] 2. course s...read more
  2. A hash function was written to convert a string into a hash. Write a un-hash fu...read more
  3. Find angle between hour hand and minute hand in clock if time is given? Write a...read more

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Zomato Software Developer Interview Process

based on 5 interviews

Interview experience

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Good
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Zomato Software Developer Salary
based on 61 salaries
₹12.6 L/yr - ₹42.8 L/yr
271% more than the average Software Developer Salary in India
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Zomato Software Developer Reviews and Ratings

based on 8 reviews

3.6/5

Rating in categories

4.1

Skill development

2.9

Work-life balance

4.3

Salary

3.0

Job security

3.2

Company culture

3.8

Promotions

3.4

Work satisfaction

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