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LeadSquared Software Developer Interview Questions and Answers
LeadSquared Software Developer Interview Experiences
1 interview found
Anonymous
I was interviewed in Jan 2024.
(1 Question)
- Q1. Javascript and its features
- Ans.
Javascript is a versatile programming language used for web development, with features like dynamic typing, prototypal inheritance, and event-driven programming.
Dynamic typing allows variables to hold values of any type without explicit declaration
Prototypal inheritance enables objects to inherit properties and methods from other objects
Event-driven programming allows for asynchronous execution of code based on user ac
Skills evaluated in this interview
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Anshul Gupta
I applied via Campus Placement
Interview Questionnaire
3 Questions
- Q1. Tell me one thing about you that's not listed on your resume
- Ans.
I am an avid traveler and have visited over 20 countries
I love experiencing new cultures and trying new foods
I have backpacked through Europe and Asia
I have volunteered in orphanages in Cambodia and Nepal
- Q2. When you hear InMobi, what's the first word that comes in your head?
- Ans.
Mobile advertising platform
Adtech
Mobile marketing
App monetization
- Q3. The office of InMobi technologies has 10 floors, each with 300 employees. In the morning (7-8 AM), the building sees 3000 employees entering and waiting in a queue for 3 lifts. In the morning, everyone goe...
Interview Preparation Tips
Experience: The first round was a resume shortlist, which I think was on the basis of programming and coding courses (and projects) taken along with your CGPA. Out of 10 shortlisted people, I knew 4 and all of us were 9 pointers. The rest who I didn't know turned out to be 9 pointers as well! :P
Out of 10 shortlisted people, 3 (including me) were from ECE and the rest were from CS. Even though InMobi was open for Mathematics & Computing, no person from MnC dept. was in the shortlist. (Presumably due to their CGPAs or some other criterion that I'm not in the knowledge of.)
Tips: i) High CGPA is a must (We're talking above 9, at the end of 2nd year for CS/ECE and 3rd year for MnC)
ii)Taking programming and algorithm courses and projects is important, as that must be visible in your resume.
Round: Puzzle Interview
Experience: One special thing about the interviews, you're asked not to wear any formals! That actually helps in taking the tension off of things!
It's simple logic, after that. Increase the lift's speed (taking in mind of the safety), collecting usage data, optimising the lift's floor-stoppage according to that.
As told after the interview, the interviewer is just observing how you think and approach a problem.
One odd thing was not being asked about any coding/algorithm questions even though the profile was for a software engineer.
After this question, I was asked if I had any questions to ask. I simply stated that the work environment and culture affected me as much as the profile I'm applying for. Thus, the drive and motivation of the people who work there is also very important. So I asked what are the companies' values which the employees believe in, too.
Tips: Stay confident, don't let any tension get to your head.
In the future, InMobi may start asking coding questions too in the interviews. or change the selection procedure, which will be communicated in the PPT of InMobi.
Whatever may happen, the first round should show your zeal to solve problems, your creativity in trying different approaches, and applying logic to find the best solution.
Round: HR Interview
Experience: OK! There were a lot of questions asked since the interview was more like a conversation taking place. Like in ANY conversation, keep proper eye contact, smile and be approachable for any questions. Show enthusiasm in your voice and your answers. The interviewer asked me questions about
i)My resume, and all the activities that I'd listed there. (eg: Why did you enlist in this course? Do you like coding?)
ii)Why programming, how does it interest you?
iii)Basic questions about InMobi, like 'What do you know about us after attending the PPT?' and 'Why InMobi'
Since I had done quite a lot of marketing activities, I was also asked about that. Will you do an MBA in the future? What all did you do for marketing? I had a strong background in digital marketing, and we had a little chat about mobile marketing and what's the future of mobile advertising.
Tips: Smile, for god's sake! It's a conversation about you, do all the basic things to improve the conversational experience.
Small things like greeting the interviewer, smiling, proper eye contact, and speaking properly are paramount.
Like in any HR interview, make sure you know yourself and your resume properly, so that you don't phase out in the interview when asked some 'unexpected' question. (since that's when they know thatyou might be lying/exaggerating). Hence introspect enough before sitting the interviews.
General Tips: Make sure you're able to convince yourself and the interviewers for why do you want to work in Inmobi Technolgies.
I've already shared the rest in previous sections! :)
2 people out of 10 were selected for this internship experience, so make sure you prepare well! All the best! :D
Skill Tips: I don't think that this adds on as a skill, but InMobi wants to create a huge impact on the mobile world and the mobile advertising sector.
Your knowledge about this sector in general could help you strike good conversations (at least in the HR round).
Skills: Logic, Problem Solving Abilties, Creativity, Communication Skills
Duration: 2.5
College Name: IIT Kharagpur
Motivation: I'm a gadget geek from my childhood. The mobile industry amazes me as it's been the biggest change-bringer in the modern world. InMobi as a company wants to create a huge impact in the mobile advertising space and mobile advertising! And seeing their products that they offer in this domain had me thinking that they're doing something unique and awesome!
The work culture of InMobi is just amazing, right from flexible work hours to the epic office they have in Bangalore full of awesome people working towards that one goal! Also, InMobi offers their employees opportunities to shift between various verticals if they want to. All of this (along with a good compensation ;-) ) was enough motivation for me to apply!
Funny Moments: When I was asked whether I was in the third year, I said yes, and then said, usually people think that I'm still in high school!
We had a good laugh on that one! :P
Otherwise also, the entire procedure was relaxed and fun in general.
Interview Questionnaire
9 Questions
- Q1. Find Maximum sub sequence sum in an array ?
- Ans.
Maximum sub sequence sum in an array
Use Kadane's algorithm
Initialize max_so_far and max_ending_here to 0
Iterate through the array and update max_ending_here and max_so_far
Return max_so_far
- Q2. What do you understand by the endianness of the system ? How do you find out the the type of endianness ?
- Ans.
Endianness refers to the byte order of a system. It determines how multi-byte data types are stored in memory.
Little-endian systems store the least significant byte first, while big-endian systems store the most significant byte first.
Endianness can affect the way data is transmitted between systems.
To determine the endianness of a system, you can use the byte order mark (BOM) or write a test program that checks the by...
- Q3. Sort an array which consists of 0's and 1's only
- Ans.
Sort an array of 0's and 1's only.
Use two pointers, one at the beginning and one at the end of the array.
Swap 0's from the beginning with 1's from the end until the pointers meet.
Alternatively, use a counting sort algorithm to count the number of 0's and 1's and then reconstruct the array.
- Q4. A question on applications of minimum spanning tree, apply prim's or kruskal's algorithm
- Q5. What do you understand by Heaps, max and min heaps ?
- Ans.
Heaps are data structures used to efficiently find the maximum or minimum element in a collection.
Max heap: parent nodes are always greater than or equal to child nodes
Min heap: parent nodes are always smaller than or equal to child nodes
Heaps are commonly used in priority queues and sorting algorithms
Heap operations include insert, delete, and extract max/min
Example: An array [3, 8, 2, 5, 1, 4, 6] can be represented a
- Q6. What do you understand by hashing ? questions on application of hashing
- Q7. Find 3 nos a,b and c in an array where a+b = c
- Ans.
Find 3 numbers in an array where a+b=c.
Loop through the array and check for all possible combinations of a and b.
Use a hash table to store the values of a and b, and check if c is present in the hash table.
Sort the array and use two pointers to find a and b, and then check if their sum equals c.
- Q8. Some puzzles, as the other interviewee said, but not asked to me
- Q9. Questions on Dynamic programming
Interview Preparation Tips
Skills evaluated in this interview
Interview Questionnaire
3 Questions
- Q1. Algorithms on arrays and strings (coding)
- Ans.
Algorithms for manipulating arrays and strings in coding
Use sorting algorithms like quicksort and mergesort for arrays
Use string manipulation functions like substring and replace for strings
Use dynamic programming for optimizing solutions to array and string problems
- Q2. Distributed Database Design
- Q3. Large scale Ad Server Design
- Ans.
Designing a large scale Ad Server
Use distributed systems for scalability
Implement caching for faster ad delivery
Ensure high availability and fault tolerance
Use real-time bidding for efficient ad placement
Implement fraud detection mechanisms
Ensure compliance with privacy regulations
Interview Preparation Tips
Experience: They tested on thought-process during design problems. What problems are with the current solution I suggested and how to improve it...
Tips: Hints from interviewer are very helpful
Keep talking while you are thinking
Skills: Algorithms, Thinking Skills, Coding
College Name: IIT KHARAGPUR
Skills evaluated in this interview
I applied via Company Website and was interviewed in Sep 2020. There were 5 interview rounds.
Interview Questionnaire
1 Question
- Q1. Coding and solution architecture
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. Strings, arrays, dp
Anu S M
Leetcode easy-medium
(2 Questions)
- Q1. What is Cyber Security and information security?
- Ans.
Cyber security is the practice of protecting systems, networks, and data from digital attacks.
Cyber security involves implementing measures to prevent unauthorized access, data breaches, and other cyber threats.
It includes technologies, processes, and practices designed to protect networks, devices, programs, and data from attack, damage, or unauthorized access.
Examples of cyber security measures include firewalls, ant...
- Q2. What are the types of encryption?
- Ans.
Types of encryption include symmetric encryption, asymmetric encryption, and hashing.
Symmetric encryption: Uses the same key for both encryption and decryption, examples include AES and DES.
Asymmetric encryption: Uses a pair of public and private keys for encryption and decryption, examples include RSA and ECC.
Hashing: Converts data into a fixed-size string of bytes, examples include MD5 and SHA.
Skills evaluated in this interview
Selected
I applied via Campus Placement and was interviewed before Sep 2023. There were 3 interview rounds.
2 coding questions were asked followed by an English test
(2 Questions)
- Q1. I was asked to code for denomination of currency in JavaScript
- Q2. JavaScript related questions like difference between double and triple equals to
(2 Questions)
- Q1. This round was with senior member who asked me questions related to SQL queries. I don't exactly remember the question but it was nested query
- Q2. I was asked questions related to the DBMS project and modifications that could be done in order to improve the model and performance
I applied via Campus Placement
40 Aptitude Questions, one English test, 2 Easy Programming questions
Coding Round one. A string question
A String Question - Intermediate
Interview Preparation Tips
I applied via Company Website and was interviewed in Jan 2022. There were 5 interview rounds.
- 30 MCQ questions mostly related to HTML, JS & C#
- 2 easy-moderate coding questions
- Aptitude test on CoCubes (12 mins)
- English Test (speaking + writing + reading + listening) on Pearson platform
(4 Questions)
- Q1. Print the following pattern: (was asked to complete test execution within 10 mins) ****4 ***444 **44444 *4444444 444444444
- Q2. Find the length of longest substring composed of same digit, within a string of digits: (was asked to complete within 10 mins) E.g. 01241XXXXX901111 Output: 4 Explanation: "1111" is the longest substring
- Ans.
Find the length of longest substring composed of same digit within a string of digits.
Iterate through the string and keep track of the current digit and its count
Update the maximum count whenever a new digit is encountered
Return the maximum count
- Q3. An SQL SPROC that is supposed to return tabular data is running slowly, what are the different ways you could debug it?
- Ans. 1. Check for unnecessary columns in SELECT statement 2. Check if there's any cursor present in the SPROC 3. Check if columns have been properly indexed (specifically the columns being used in ORDER BY) 4. Check if data is being paged 5. etc.
- Q4. An API is running slow. Upon investigation it was found that SPROC running behind it is perfectly optimized. How can you debug this behavior of API? (You can neglect the resolve time & connect time of the ...
- Ans.
To debug the slow behavior of the API, analyze network latency, check for database issues, monitor server performance, and review code for potential bottlenecks.
Analyze network latency to identify any issues with data transmission.
Check for database issues such as slow queries or insufficient indexing.
Monitor server performance to ensure it has enough resources and is not overloaded.
Review the code for potential bottle...
(3 Questions)
- Q1. Check if two strings are anagrams of each other. Follow up question: solve it in O(N) time. (Time limit to solve question: 10 mins)
- Q2. Given Tables: 1. Authors (AuthorId PK, Name) 2. Books (BookId PK, AuthorId FK, Name) 3. Orders (OrderId PK, BookID FK, AuthorId FK, StoreName) Write SQL query to print following information for each autho...
- Q3. Questions about an open source distributive caching project that I implemented. Wanted to know what flaws do I see in the project and how do I plan to resolve them. Few follow up questions regarding cachin...
(3 Questions)
- Q1. Given an array of integers (both positive and negative) find the maximum and second maximum number without using sort and using only single loop.
- Ans.
Find maximum and second maximum number in an array without using sort and single loop.
Initialize max and secondMax variables to the smallest possible integer value
Iterate through the array and update max and secondMax accordingly
Return max and secondMax as the result
- Q2. Given Table: Weather (CityName, Date, Temperature) Write an SQL query which prints the following: "CityName, Today's Temperature, Yesterday's Temprature" (if yesterday's temperature doesn't exist, then p...
- Q3. Given Table: ExamResults (StudentName, SubjectName, Marks) Write an SQL query to print the following: 1. "Student Name, Percentage" (Marks are out of 100) 2. List of all students having percentage great...
Interview Preparation Tips
2. They'll not be testing your coding knowledge, but rather your problem solving skills. Make sure to keep talking about whatever logic comes to your head.
3. Don't be nervous, the interviewers are friendly.
Skills evaluated in this interview
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