WeInvest Software Engineer Interview Questions and Answers

Q1. The interview emphasized team collaboration and work ethics, with a particular focus on my overall work experience at my previous company.
Add your answer
Q2. What were your preferences regarding work locations, specifically your views on working from the office (WFO) compared to working from home (WFH)?
Ans. 
I prefer a mix of both working from the office and working from home.
• I believe in the benefits of face-to-face collaboration and communication that come with working from the office.

• At the same time, I appreciate the flexibility and productivity that working from home offers.

• I think a hybrid approach, where employees have the option to choose between WFO and WFH based on their tasks and preferences, is ideal.

• I have exp...read more
Answered by AI
Add your answer

Q1. Focus was on DS algo and scenario based coding questions
Add your answer
Q2. Design skills and OS knowledge
Add your answer

First round was a coding test which has 2 problem solving questions and 3 subjective questions based on C++

Q1. This is also based on problem solving and DSA. A small part will be OS and network.
Add your answer

More of a subjective round, highly focused on OS, networking and computer architecture.

Q1. This round is with the HM, totally subjective. Highly focused on past experience, current projects etc.
Add your answer

Q1. HR discussion mostly questions are related to past and current experience.
Add your answer

2 coding questions based on DSA.

Q1. Easy coding problem.
Add your answer
Q2. Medium coding problem.
Add your answer

Round duration - 45 Minutes
Round difficulty - Easy

The interviewer was friendly. Explained the question well. Allowed to use any preferred platform to write code.

Q1. 
Best Time to Buy and Sell Stock Problem Statement
Given an array prices representing the prices of a stock where each element indicates the price at a given minute, determine the maximum profit you can ac...read more
Ans. 
Find the maximum profit by buying and selling a stock once based on given prices.
• Iterate through the prices array and keep track of the minimum price seen so far and the maximum profit achievable.

• Calculate the profit by subtracting the current price from the minimum price and update the maximum profit if needed.

• Return the maximum profit, ensuring it is not negative.

• Example: prices = [2, 100, 150, 120], Buy at 2, sell a
Answered by AI
View 1 more answer

Round duration - 60 Minutes
Round difficulty - Medium

Q1. 
Dance Team Pairing Challenge
Imagine you are helping Ninja, a dance coach, who needs to form dance pairs from the available boys and girls in a studio. Given the number of boys N, the number of girls M, a...read more
Ans. 
The challenge involves forming dance pairs from available boys and girls based on potential pairings to maximize the number of pairs.
• Parse the input to get the number of test cases, boys, girls, and potential pairings.

• Iterate through the potential pairings and form pairs based on the given indexes.

• Output '1' if a set of maximum possible pairs is returned, else output '0'.

• There can be multiple valid configurations of pa...read more
Answered by AI
Add your answer
Q2. What is the difference between multiprocessing and multithreading?
Ans. 
Multiprocessing involves multiple processes running concurrently, while multithreading involves multiple threads within a single process.
• Multiprocessing utilizes multiple processes to execute tasks simultaneously.

• Multithreading involves multiple threads within a single process sharing the same memory space.

• Multiprocessing is typically used for CPU-bound tasks, while multithreading is more suitable for I/O-bound tasks.

• E...read more
Answered by AI
Add your answer

Round duration - 60 Minutes
Round difficulty - Hard

Q1. Can you describe the classes and functions involved in the design of a system like Splitwise?
Ans. 
Splitwise is a system for managing shared expenses among groups of people.
• Classes: User, Expense, Group

• Functions: addExpense(), settleUp(), calculateBalance()
Answered by AI
Add your answer

Round duration - 60 Minutes
Round difficulty - Hard

DSA medium level questions were asked.

Q1. Design MakeMyTrip kind of application.
Ans. 
MakeMyTrip is a travel booking application that allows users to book flights, hotels, and holiday packages.
• Include features like flight/hotel search, booking, payment gateway integration, and user profiles.

• Implement filters for search results, reviews/ratings for hotels, and notifications for booking updates.

• Integrate maps for location tracking, weather forecasts, and customer support chatbot.

• Offer discounts, loyalty p...read more
Answered by AI
Add your answer
Q2. Oops based questions.
Add your answer

3 coding questions

Q1. Design a Time Series Database
Ans. 
A time series database stores data points with timestamps for efficient retrieval and analysis.
• Choose a suitable data model for the database

• Use a time-based partitioning scheme for efficient data retrieval

• Implement compression techniques to reduce storage requirements

• Support for querying and analyzing time-based data

• Ensure data consistency and durability

• Consider scalability and high availability

• Examples: InfluxDB, Time
Answered by AI
Add your answer

There was basic GD topic

Q1. Google form was shared in which 15 questions were there and 3 were apti questions (work ,time ,speed) and others were from java programming and the time given was 2 hours.
Add your answer

Q1. In this only you will be asked theoretical questions like DBMS, JAVA, Programming, Your Project for programming he will ask only logic and will not ask you to code.
Add your answer

Q1. Count the number of words and their frequency
Ans. 
Count the number of words and their frequency
• Split the given text into words using whitespace as delimiter

• Create a dictionary to store the word frequency

• Iterate through each word and update the frequency in the dictionary

• Return the dictionary with word frequency
Answered by AI
Add your answer
Q2. Count frequency of characters.
Ans. 
Count the frequency of characters in a given string.
• Iterate through the string and use a hash map to store the count of each character.

• Initialize the count of each character to 0 and increment it as you encounter the character.

• Finally, iterate through the hash map to get the frequency of each character.
Answered by AI
Add your answer
Q3. Reversing the array
Ans. 
Reverses an array of strings
• Use a loop to iterate through half of the array

• Swap the elements at the current index with the corresponding element from the end of the array
Answered by AI
Add your answer
Q4. Implementing the comparator function for sorting
Ans. 
Implementing the comparator function for sorting an array of strings.
• Use the built-in sort() function in most programming languages.

• Define a custom comparator function that compares two strings.

• Return a negative value if the first string should come before the second, a positive value if it should come after, and 0 if they are equal.

• Example: ['apple', 'banana', 'cherry'] can be sorted in alphabetical order using the co
Answered by AI
Add your answer