Qualcomm Senior Staff Engineer Interview Questions and Answers

Leetcode easy problem based on binary search

Q1. Design Stock Notification System
Ans. 
Design a system to notify users about stock availability and changes.
• Create a database to store stock information and user preferences.

• Implement a notification system to alert users when stock levels change.

• Allow users to set preferences for specific products or thresholds.

• Consider using push notifications, emails, or SMS for notifications.

• Include a user interface for managing preferences and viewing stock information.
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Q2. Design Snake & Ladder Game
Ans. 
Design a Snake & Ladder game using arrays and logic.
• Create a 10x10 grid representing the game board.

• Assign positions for snakes and ladders on the board.

• Use arrays to store the positions of players and their movements.

• Implement logic for dice roll and player movement.

• Include win condition when a player reaches the final position.
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Q1. Round with Hiring Manager. OS Related questions.
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Q1. Jenkins shared library
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Q2. Password less ssh between machine
Ans. 
Passwordless SSH allows for secure and convenient access between machines.
• Generate SSH key pair on local machine using ssh-keygen command

• Copy public key to remote machine's authorized_keys file

• Ensure correct permissions on .ssh directory and authorized_keys file

• Test SSH connection without password prompt
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Current role and responsibilities

Q1. C++ Related questions
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Q1. Work experience mentioned in resume
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Q1. Previous work-related question
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Q1. Why you wanted to join
Ans. 
I wanted to join because of the challenging projects and opportunities for growth.
• Exciting projects that will push my skills to the next level

• Opportunities for career advancement and professional development

• Positive company culture and values align with my own

• Desire to work with a talented team and learn from experienced engineers
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Q2. Where do you see yourselves in 5 years
Ans. 
In 5 years, I see myself as a senior staff engineer leading a team of talented individuals, contributing to innovative projects, and continuously learning and growing in my role.
• Leading a team of engineers

• Contributing to innovative projects

• Continuous learning and growth in role
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Q1. Tell me about your previous experience? What is your current role? Do you have exposure to GD&T? What is the strongest GD&T control?
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Q1. What is the difference between your previous work experience? What are the challenges you faced when your roles changed?
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Basic coding, normal editor, windows

DSA-strings (advanced)

Q1. Discussion about role and projects.
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Q1. Design a key-value store.
Ans. 
A key-value store is a data storage system that allows users to store, retrieve, and manage data based on unique keys.
• Use a hash table data structure to store key-value pairs.

• Implement methods for adding, updating, and deleting key-value pairs.

• Include features like data replication, sharding, and data partitioning for scalability.

• Consider data consistency and fault tolerance mechanisms.

• Examples: Redis, MongoDB, Cassand
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Q1. It was like discussing the projects and why some technical decision was made. 1-2 coding questions. Only pseudo code.
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Q2. Discuss the current role
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Q3. Current project details and experience
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Coding test with few SQL queries.

Interview is simple and easy... directly went to the in depth questions