Altruist Technologies Software Engineer Interview Questions and Answers

Q1. What is the Middleware
Ans. 
Middleware is software that connects different applications or services, enabling them to communicate and manage data exchange.
• Acts as a bridge between different software applications.

• Facilitates communication and data management in distributed systems.

• Examples include message brokers like RabbitMQ and API gateways.

• Can provide services like authentication, logging, and transaction management.

• Used in microservices archi...read more
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Q2. What is dependency injection
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Round duration - 126 minutes
Round difficulty - Hard

This round consist of coding questions as well as mcqs based on aptitude as well as some domain sections. This round is hard.

Q1. 
Maximum Path Sum in a Matrix
Given an N*M matrix filled with integer numbers, determine the maximum sum that can be obtained from a path starting from any cell in the first row to any cell in the last row...read more
Ans. 
Find the maximum sum path in a matrix from top row to bottom row by moving down or diagonally.
• Use dynamic programming to keep track of maximum sum at each cell.

• At each cell, consider the maximum sum from the cell above, left diagonal, and right diagonal.

• Add the current cell value to the maximum of the three possibilities.

• Repeat this process for all cells in the matrix to find the maximum sum path.
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Q2. 
Boolean Matrix Transformation Challenge
Given a 2-dimensional boolean matrix mat of size N x M, your task is to modify the matrix such that if any element is 1, set its entire row and column to 1. Specifi...read more
Ans. 
Modify a boolean matrix such that if any element is 1, set its entire row and column to 1.
• Iterate through the matrix to find elements with value 1

• Store the row and column indices of these elements

• Update the entire row and column for each element found to be 1
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Round duration - 45 minutes
Round difficulty - Easy

In this round the interviewer ask few questions related to domain and at last he ask some behavioral questions.

Q1. 
Intersection of Linked List Problem
You are provided with two singly linked lists containing integers, where both lists converge at some node belonging to a third linked list.
Your task is to determine t...read more
Ans. 
Find the node where two linked lists merge, return -1 if no merging occurs.
• Traverse both lists to find the lengths and the last nodes

• Align the starting points of the lists by adjusting the pointers

• Traverse both lists simultaneously until a common node is found
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Q1. Explain collection framework and uses
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Q2. Explain springboot and it's annotation
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Q1. What are the responsibilities of a Data Analyst?
Ans. 
Data Analysts are responsible for collecting, processing, and analyzing data to help organizations make informed decisions.
• Collecting and organizing data from various sources

• Cleaning and processing data to ensure accuracy and consistency

• Analyzing data using statistical techniques and tools

• Creating visualizations and reports to present findings

• Interpreting data to provide insights and recommendations

• Collaborating with s...read more
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Q2. Software engineer
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Q1. It’s basically HR screening round, HR will ask you few questions like, work experience, core technology and CTC and few relatively questions
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Q1. Few basics technical questions.
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Q1. They will ask all relatives questions l, like where will you see yourself in 5 years and few questions related to team management.
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It was easy and u can do it very easily

Basically question were asked from tree, bst, greedy