Questions that have appeared at amazon for an engineering (Case Study) interview.

1. Scalability and Performance

Question: Given a case where Amazon's website traffic suddenly doubles due to a global event, how would you ensure the website remains stable and performs well?

Question: Describe a time when you had to improve the performance of a system. What was your approach and what were the results?

Question: If you were given the task of improving the performance of a database query that takes too long to execute, how would you approach this problem?

2. System Design

Question: How would you design a distributed system for Amazon's eCommerce platform to handle millions of transactions per day?

Question: Given a case where you need to build a system to handle real-time inventory updates, how would you approach this?

Question: Let’s assume that you’re tasked with designing a system for Amazon that requires high availability. What would be your approach to ensure minimal downtime?

3. Problem Solving

Question: Describe a complex technical problem you've faced in the past, how you approached it, and how you ultimately solved it.

Question: Amazon's checkout system has a bug that is causing a small percentage of orders to fail. How would you approach this problem?

Question: Tell us about a time when you had to make a critical decision with incomplete information. What was your decision-making process?

4. Amazon's Leadership Principles

Question: How have you demonstrated Amazon's leadership principle "Customer Obsession" in your past work?

Question: Can you provide an example of when you have shown "Bias for Action", another one of Amazon's leadership principles, in a technical context?

Question: Amazon values "Ownership" in its employees. Can you describe a situation where you took ownership of a problem and saw it through to resolution?