Upload Button Icon Add office photos

Freshworks

Compare button icon Compare button icon Compare

Filter interviews by

Freshworks Backend Engineer Lead Interview Questions, Process, and Tips

Updated 21 Jan 2024

Freshworks Backend Engineer Lead Interview Experiences

1 interview found

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

I applied via Approached by Company and was interviewed in Dec 2023. There were 2 interview rounds.

Round 1 - Data structures and Algorithms  

(3 Questions)

  • Q1. Find count of hard nodes in a binary tree ? A node is a hard node if it's current value is greater than its root's value.
  • Ans. 

    Count the number of hard nodes in a binary tree.

    • Traverse the binary tree using any traversal algorithm.

    • Compare the value of each node with its root's value.

    • Increment the count if the node's value is greater than its root's value.

  • Answered by AI
  • Q2. Find the department with maximum number of students ? Department table: Id, dept_name Student table: I'd, stident_name, dept_id
  • Ans. 

    The department with the maximum number of students needs to be found.

    • Join the Department and Student tables on the dept_id column

    • Group the data by department

    • Count the number of students in each department

    • Find the department with the maximum count

  • Answered by AI
  • Q3. How caching works ?
  • Ans. 

    Caching is a technique used to store frequently accessed data in a temporary storage for faster retrieval.

    • Caching improves performance by reducing the need to fetch data from the original source.

    • It involves storing data in a cache, which is a high-speed storage system closer to the user or application.

    • When a request is made for data, the cache is checked first, and if the data is found, it is returned quickly.

    • If the da...

  • Answered by AI
Round 2 - Technical 

(3 Questions)

  • Q1. System design For bookmyshow. They asked me only to design the DB tables and their relationships. (Not asked the full design)
  • Q2. When to have SQL and NoSql db ?
  • Ans. 

    SQL databases are suitable for structured data and complex queries, while NoSQL databases are better for unstructured data and high scalability.

    • Use SQL databases when data has a fixed schema and relationships between entities are well-defined.

    • Use NoSQL databases when data is unstructured or semi-structured, and when high scalability and performance are required.

    • SQL databases are better for complex queries involving mul...

  • Answered by AI
  • Q3. Questions about specific cases in my current project? Had I faced any struggles and how did I solved them ?

Interview Preparation Tips

Interview preparation tips for other job seekers - Be thorough with data structures and algorithms.
Practice SQL queries with joins, groupby, order by, having.
Practice System design questions for systems like bookmyshow, tinyurl generator with lot of focus on designing db tables and their relationships.

Skills evaluated in this interview

Interview questions from similar companies

Interview Questionnaire 

21 Questions

  • Q1. AVL tree balance checking
  • Q2. Median of 2 sorted arrays in O(log N) time complexity and O(1) space complexity
  • Ans. 

    Find median of 2 sorted arrays in O(log N) time complexity and O(1) space complexity

    • Use binary search to find the partition point in both arrays

    • Calculate the median based on the partition point and array sizes

    • Adjust the partition points based on the median value

    • Repeat until the partition points are at the median

    • Handle edge cases such as empty arrays and uneven array sizes

  • Answered by AI
  • Q3. Strings Anagram in O(1) space complexity
  • Ans. 

    Anagram of strings in O(1) space complexity

    • Use a fixed size array of integers to store the frequency of characters in the first string

    • Iterate through the second string and decrement the frequency of each character in the array

    • If all the frequencies are zero, then the strings are anagrams

    • Return true or false accordingly

  • Answered by AI
  • Q4. Level order traversal of a tree using Queue
  • Ans. 

    Level order traversal of a tree using Queue

    • Create a queue and add the root node to it

    • While the queue is not empty, remove the front node and print its value

    • Add the left and right child nodes of the removed node to the queue

    • Repeat until the queue is empty

  • Answered by AI
  • Q5. Reverse level order traversal of a tree using Queue
  • Ans. 

    Reverse level order traversal of a tree using Queue

    • Create a queue and push the root node into it

    • While the queue is not empty, pop the front node and push its children into the queue

    • Add the popped node to a stack

    • Once the queue is empty, pop elements from the stack and print them

  • Answered by AI
  • Q6. BFS and DFS Difference
  • Ans. 

    BFS and DFS are graph traversal algorithms. BFS explores nodes level by level while DFS explores nodes depth by depth.

    • BFS uses a queue while DFS uses a stack or recursion.

    • BFS is optimal for finding shortest path while DFS is optimal for finding a path between two nodes.

    • BFS requires more memory as it stores all the nodes at each level while DFS requires less memory.

    • BFS can be used to find connected components while DFS

  • Answered by AI
  • Q7. OS Concepts – Starvation, Demand Paging, Virtual Memory, Deadlocks
  • Q8. Parenthesis Balance Checking
  • Q9. Three Jars - 1 with apples, 1 with oranges, 1 with apples and oranges. All of them wrongly labelled. Find min no of attempts to find the correct nature of boxes
  • Q10. Find product of each element of an array except that element in O(N) time complexity without using / operation
  • Ans. 

    Find product of each element of an array except that element in O(N) time complexity without using / operation

    • Use prefix and suffix products

    • Multiply prefix and suffix products for each element to get the final product

    • Handle edge cases where array has 0 or 1 element separately

  • Answered by AI
  • Q11. Recursively deleting linked list
  • Ans. 

    Recursively delete a linked list

    • Create a recursive function that takes the head of the linked list as input

    • Base case: if the head is null, return

    • Recursively call the function with the next node as input

    • Delete the current node

  • Answered by AI
  • Q12. Recursively deleting linked list from end
  • Ans. 

    Recursively delete a linked list from the end.

    • Start from the head and recursively traverse to the end of the list.

    • Delete the last node and set the second last node's next pointer to null.

    • Repeat until the entire list is deleted.

    • Use a recursive function to implement the deletion process.

  • Answered by AI
  • Q13. Recursively deleting tree
  • Ans. 

    Recursively delete a tree by deleting all its child nodes and then the parent node.

    • Start from the leaf nodes and delete them first.

    • Then move up to the parent nodes and delete them.

    • Repeat until the root node is deleted.

    • Use post-order traversal to ensure child nodes are deleted before parent nodes.

  • Answered by AI
  • Q14. Recursively deleting from end
  • Ans. 

    Recursively delete elements from the end of an array.

    • Create a recursive function that removes the last element of the array.

    • Call the function recursively until the desired number of elements are removed.

    • Handle edge cases such as empty arrays and removing more elements than the array contains.

  • Answered by AI
  • Q15. Difference between Floyd Warshall and Djikstra
  • Ans. 

    Floyd Warshall finds shortest path between all pairs of vertices while Djikstra finds shortest path from a single source.

    • Floyd Warshall is used for dense graphs while Djikstra is used for sparse graphs.

    • Floyd Warshall has a time complexity of O(n^3) while Djikstra has a time complexity of O((n+m)logn).

    • Floyd Warshall can handle negative edge weights while Djikstra cannot.

    • Floyd Warshall can detect negative cycles while Dj

  • Answered by AI
  • Q16. Shortest path between 2 points in 2-D space in O(log N) time
  • Ans. 

    There is no known algorithm to find shortest path in 2-D space in O(log N) time.

    • The best known algorithm for finding shortest path in 2-D space is Dijkstra's algorithm which has a time complexity of O(N^2).

    • Other algorithms like A* and Bellman-Ford have better time complexity but still not O(log N).

    • If the points are on a grid, Lee algorithm can be used which has a time complexity of O(N).

  • Answered by AI
  • Q17. Design a system for putting newspapers using classes and functions taking different aspects into account
  • Ans. 

    Design a system for putting newspapers using classes and functions

    • Create a Newspaper class with attributes like title, date, and content

    • Create a Publisher class with methods to publish and distribute newspapers

    • Create a Subscriber class with methods to subscribe and receive newspapers

    • Use inheritance to create different types of newspapers like daily, weekly, etc.

    • Implement a database to store newspaper information and ha

  • Answered by AI
  • Q18. SQL commands
  • Q19. Career Prospects - Long Term Plans
  • Q20. Why not higher studies?
  • Ans. 

    I believe practical experience is more valuable than higher studies.

    • I have gained valuable experience through internships and projects.

    • I prefer hands-on learning and problem-solving over theoretical knowledge.

    • I am constantly learning and improving my skills through online courses and workshops.

  • Answered by AI
  • Q21. Machine Learning Concepts - Based on my projects

Interview Preparation Tips

Round: Test
Experience: All Computer Science Topics Covered: Data Structures, Algorithms, Object Oriented Systems, C, C++, Operating Systems, Computer Architectures, Databases, SQL, Basic Quantitative Aptitude
Tips: Solve all of them. Cut off's generally go high.
Duration: 30 minutes
Total Questions: 30

Round: Interview
Experience: Nice Experience. Interviewer was friendly. He wanted exact solutions.
Tips: Be thorough with everything and your projects.

Round: Interview
Experience: Nice Experience. Interviewer was friendly. He wanted exact solutions.
Tips: Be thorough with everything and your projects.

Round: Interview
Experience: Nice Experience. Interviewer was friendly.
Tips: Do not fake yourself.

General Tips: Be thorough with all CS related concepts and projects.
Skill Tips: ""Be thorough.""
Skills: Algorithms, Data Structures, Operating Systems, Machine Learning, SQL, Operating Systems, Computer Architecture, Data Analytics
College Name: IIT Kharagpur
Motivation: Kind of application oriented work and the rising nature of the company. Obviously money also.
Funny Moments: Many funny questions and answers like did you have lunch, when did you last eat, etc

Skills evaluated in this interview

Software Engineer Interview Questions & Answers

Amadeus user image Varun Thopucherla

posted on 11 Mar 2015

Interview Questionnaire 

10 Questions

  • Q1. Tell about yourself?
  • Ans. 

    I am a software engineer with experience in developing web applications and mobile apps.

    • Proficient in programming languages such as Java, Python, and JavaScript

    • Experience in developing RESTful APIs and integrating third-party APIs

    • Familiarity with front-end frameworks such as React and Angular

    • Strong understanding of database management systems such as MySQL and MongoDB

    • Passionate about learning new technologies and keepi

  • Answered by AI
  • Q2. Why Software industry? why not core?
  • Ans. 

    Software industry offers endless opportunities for innovation and growth.

    • Software industry is constantly evolving and offers opportunities to work on cutting-edge technologies.

    • It provides a platform to solve complex problems and create innovative solutions.

    • The demand for software engineers is high and the industry offers competitive salaries.

    • Core industries may have limited scope for growth and innovation compared to s...

  • Answered by AI
  • Q3. Write a program to print the given string in reverse
  • Ans. 

    Program to print a given string in reverse

    • Create a character array of the given string

    • Loop through the array from end to start and print each character

  • Answered by AI
  • Q4. Some questions about computer networks and Digital electronics
  • Q5. What is Mux? what are its real life applications?
  • Ans. 

    Mux is a device that selects one of several input signals and forwards the selected input into a single output line.

    • Mux stands for Multiplexer.

    • It is used in digital circuits to select one of several input signals and forward the selected input into a single output line.

    • It is used in communication systems to combine multiple signals into a single channel for transmission.

    • It is used in video and audio systems to switch b...

  • Answered by AI
  • Q6. What is DeMux? what are its real life applications?
  • Ans. 

    DeMux is short for Demultiplexer. It is a digital circuit that takes one input and directs it to multiple outputs.

    • DeMux is used in digital communication systems to separate signals that have been combined for transmission.

    • It is also used in computer memory systems to select a specific memory location.

    • DeMux is used in video and audio systems to separate different channels of information.

    • It is used in automation systems ...

  • Answered by AI
  • Q7. Difference between decoder and Demux
  • Ans. 

    Decoder converts encoded data into a readable format while Demux separates a single input into multiple outputs.

    • Decoder is used to decode encoded data such as binary data into a readable format.

    • Demux is used to separate a single input into multiple outputs based on the control signals.

    • Decoder is a combinational circuit while Demux is a sequential circuit.

    • Decoder is used in applications such as remote controls, computer...

  • Answered by AI
  • Q8. Why amadeus labs?
  • Ans. 

    Amadeus Labs is a leading technology company in the travel industry.

    • Amadeus Labs provides opportunities to work on cutting-edge technologies.

    • The company has a strong focus on innovation and research.

    • Amadeus Labs has a global presence and offers a diverse and inclusive work environment.

    • Working at Amadeus Labs provides the opportunity to make a real impact on the travel industry.

    • The company values work-life balance and o

  • Answered by AI
  • Q9. Are you comfortable in working for Testing?
  • Ans. 

    Yes, I am comfortable working for Testing.

    • I have experience in testing and understand its importance in software development.

    • I am willing to learn new testing techniques and tools.

    • I am comfortable working with testing teams and collaborating with them to ensure quality software.

    • I understand the importance of testing in ensuring customer satisfaction and reducing costs.

    • Examples: I have experience in manual and automated...

  • Answered by AI
  • Q10. Why do you consider yourself suitable for developer role?
  • Ans. 

    I have the necessary skills and experience to excel in the developer role.

    • I have a degree in computer science and have completed multiple coding projects.

    • I am proficient in programming languages such as Java, Python, and C++.

    • I have experience working with databases and web development frameworks.

    • I am a quick learner and enjoy solving complex problems.

    • I am a team player and have collaborated with other developers on var

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: The test was conducted online. All the questions were of medium standard and easy to crack if we have patience for thinking.

English comprehension level is slightly below the standard of CAT. Those who have the habit of reading English news paper can easily crack the test.

Data analysis questions were also of medium standard. Those who have knowledge about graphs, bar & pie charts can easily crack the exam.
Tips: Practice Aptitude questions from R S Agarwaal book and CAT material.

Round: Technical Interview
Experience: Over all interview experience is cool. Interviewers never grilled on anything. In many cases they have helped me to arrive at answers.
Tips: Read C++ and Oops concepts from E Balaguruswamy text book.
For Data structures and algorithms read 'Data structures' by Yeshwant kanethkar.
Minimum knowledge about all the courses of your department will be an added advantage. This will help you to depict you are sincere in your studies and don't have any personal constraints in learning a new thing.

General Tips: Just be confident and believe in yourself. You will get through.
Skills: Programming skill in C++
College Name: NIT Warangal
Motivation: No special motivation. It is a rapidly growing company offering good package.

Skills evaluated in this interview

I applied via Naukri.com and was interviewed before Jun 2020. There were 5 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Basic oop
  • Q2. Previous projects and walktrough of one of the project, if any
  • Q3. Basic English test on a computer

Interview Preparation Tips

Interview preparation tips for other job seekers - The first step of the interview is the basic communication skills, which is taken on computer, try to listen carefully, most of the questions are only about what you have comprehend from the automated voice when played over.

OOP is very basic, they may ask some real life examples.

If you have worked previously, they may ask you about one of your projects. What technologies have you used ans why.

I applied via Recruitment Consultant and was interviewed in May 2019. There were 4 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. What is your day to day work?
  • Q2. What new you have to offer the organization?
  • Q3. The most recent issues that you faced in the organization?

Interview Preparation Tips

Interview preparation tips for other job seekers - Be true to yourself and the interviewer, he/she doesn't want you to be full of all technical skills. He/she wants you to be atleast good at the things mentioned in your resume. Showcase that you're ready to switch to any language even if it is uncomfortable for you

Interview Questionnaire 

2 Questions

  • Q1. What's is meaning of success?
  • Ans. 

    Success is achieving one's goals and feeling fulfilled in the process.

    • Success is subjective and varies from person to person.

    • It can be achieving a personal or professional goal.

    • Success can also be measured by the impact one has on others.

    • Feeling fulfilled and content is a key component of success.

    • Success is not always about material possessions or wealth.

  • Answered by AI
  • Q2. Why do we work in corporate office?

Interview Preparation Tips

Interview preparation tips for other job seekers - Find all these kind of of questions and their solutions then you cracked any kind of interviews.

I applied via Company Website and was interviewed in Jun 2021. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. C c++ javascript HTML Java
  • Q2. What sir or mum required Is

Interview Preparation Tips

Interview preparation tips for other job seekers - My name is Saurabh Saxena
I live in nadaiya rampur Post govindpur tilhar shahjahanpur Uttar Pradesh
I have a complete graduation BCA

Interview Questionnaire 

1 Question

  • Q1. Questions related to AWS dynamodb,lambdas,cloudwatch logs,Athena,json filehandling,decorators,classes and others oops concepts ,string manipulation, word frequency problems, dictionary,boto3 scripting

Interview Questionnaire 

1 Question

  • Q1. Basic java questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Verify your project before joining, since they give different project and skill

I applied via LinkedIn and was interviewed in Apr 2021. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. All were technical. Just keep practicing data structures and Algorithms and have good knowledge of the language you're good at.

Interview Preparation Tips

Interview preparation tips for other job seekers - Hey Folks
Just never get discouraged by your failures. Keep working hard and be consistent in your efforts. You will surely achieve what you deserve.

Freshworks Interview FAQs

How many rounds are there in Freshworks Backend Engineer Lead interview?
Freshworks interview process usually has 2 rounds. The most common rounds in the Freshworks interview process are Technical.
What are the top questions asked in Freshworks Backend Engineer Lead interview?

Some of the top questions asked at the Freshworks Backend Engineer Lead interview -

  1. Find the department with maximum number of students ? Department table: Id, de...read more
  2. Find count of hard nodes in a binary tree ? A node is a hard node if it's curr...read more
  3. When to have SQL and NoSql d...read more

Tell us how to improve this page.

Freshworks Backend Engineer Lead Interview Process

based on 1 interview

Interview experience

4
  
Good
View more

Interview Questions from Similar Companies

Chetu Interview Questions
3.3
 • 174 Interviews
AVASOFT Interview Questions
3.6
 • 162 Interviews
Oracle Cerner Interview Questions
3.7
 • 157 Interviews
ServiceNow Interview Questions
4.1
 • 120 Interviews
Thomson Reuters Interview Questions
4.1
 • 113 Interviews
Amadeus Interview Questions
3.9
 • 107 Interviews
EbixCash Limited Interview Questions
4.0
 • 102 Interviews
UKG Interview Questions
3.1
 • 102 Interviews
SPRINKLR Interview Questions
3.0
 • 101 Interviews
View all
Senior Software Engineer
317 salaries
unlock blur

₹10.6 L/yr - ₹39 L/yr

fresher
238 salaries
unlock blur

₹1 L/yr - ₹6 L/yr

Software Engineer
198 salaries
unlock blur

₹7 L/yr - ₹19.9 L/yr

Lead Software Engineer
196 salaries
unlock blur

₹17.2 L/yr - ₹50 L/yr

Product Specialist
118 salaries
unlock blur

₹5 L/yr - ₹11 L/yr

Explore more salaries
Compare Freshworks with

Zoho

4.3
Compare

Salesforce

4.0
Compare

Thomson Reuters

4.1
Compare

Oracle Cerner

3.7
Compare
Did you find this page helpful?
Yes No
write
Share an Interview