SACHA Engineering Senior Project Engineer Interview Questions and Answers

Round duration - 40 minutes
Round difficulty - Medium

Asked about time complexity of algorithm, puzzles, DBMS, cutting edge technologies etc. What are indexes?

Q1. 
Flip Bits Problem Explanation
Given an array of integers ARR of size N, consisting of 0s and 1s, you need to select a sub-array and flip its bits. Your task is to return the maximum count of 1s that can b...read more
Ans. 
Given an array of 0s and 1s, find the maximum count of 1s by flipping a sub-array at most once.
• Iterate through the array and keep track of the maximum count of 1s obtained by flipping a sub-array.

• Consider flipping a sub-array from index i to j and calculate the count of 1s in the resulting array.

• Return the maximum count of 1s obtained by flipping a sub-array at most once.
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Round duration - 20 minutes
Round difficulty - Medium

Asked 1 standard algorithm

Q1. 
Number of Islands Problem Statement
You are provided with a 2-dimensional matrix having N rows and M columns, containing only 1s (land) and 0s (water). Your goal is to determine the number of islands in t...read more
Ans. 
Count the number of islands in a 2D matrix of 1s and 0s.
• Iterate through the matrix and perform depth-first search (DFS) to find connected 1s.

• Mark visited cells to avoid redundant traversal.

• Increment island count whenever a new island is encountered.
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Q1. BASIC OF DENIAL MANAGMENY
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Q2. MY SELF AFTER FEW YEARS WHERE DO U SEE YOUR SELF
Ans. 
In a few years, I see myself as a successful Senior Associate, leading a team and contributing to the growth of the company.
• Leading a team of professionals and mentoring them to achieve their goals

• Contributing to the growth of the company by bringing in new clients and expanding the business

• Continuously learning and upgrading my skills to stay ahead in the industry

• Building strong relationships with clients and colleagu...read more
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Q3. CAN U ABLE TO WORK AT NIGHT SHIFT
Ans. 
Yes, I am able to work at night shift.
• I have previous experience working night shifts

• I am willing to adjust my schedule to accommodate night shifts

• I understand the importance of being alert and focused during night shifts
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Q1. HR asked about pervious experience and about myself
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Q1. In this round it was TL round,where he asked me questions about denails and coding
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Q1. This was manager round where he asked me questions about denails,coding,US healthcare and modifiers.
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