H&M Software Engineer Trainee Interview Questions and Answers

Q1. Design a distributed system with 10mil users
Ans. 
Design a distributed system to handle 10 million users.
• Use a microservices architecture to break down the system into smaller, manageable components.

• Implement load balancing to distribute user requests across multiple servers.

• Utilize a distributed database to store user data and ensure scalability.

• Implement caching mechanisms to improve performance and reduce database load.

• Use message queues for asynchronous communicat...read more
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Good with easy questions

Q1. Questions around my projects
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Q1. Salary discussion round with HR
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Q1. Coding question: Given a sorted array of numbers. All numbers have freq of 2 in array except one number. Find that number with T.C of logn
Ans. 
Find the single number in a sorted array with frequency of 2 for all other numbers.
• Use binary search to find the number with different frequency.

• Check if the mid element is at even or odd index to determine which side to search next.

• Example: Input array [1, 1, 2, 2, 3, 3, 4, 4, 5] should return 5.
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Q2. Print left view of tree
Ans. 
Print the left view of a tree by traversing the tree from left to right at each level
• Traverse the tree using level order traversal

• Print the first node at each level encountered during traversal
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Q1. Detailed discussion on projects
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Q2. Questions on O.S like about deadlocks,etc..
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Q1. Basic questions for ADF
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Q1. Basic HR round for CTC and notice period
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Medium leetcode question on graph was given by third party interviewer BarRaiser

They asked some programs like fibbonaccy,armstring number,happy number

They asked some programs and technical questions on java

Q1. Introduction, experience why we should hire you
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Q2. How you complete target.
Ans. 
To complete targets, I focus on building strong relationships with clients, understanding their needs, and providing tailored solutions.
• Developing a comprehensive sales strategy

• Identifying potential clients and leads

• Building and maintaining relationships with clients

• Understanding client needs and offering tailored solutions

• Setting clear goals and targets

• Regularly tracking progress and making necessary adjustments

• Collab...read more
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Social welfare in india explain

Q1. Tell me about yourself
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