Amazon Engineering Manager Interview Questions

1.Tell me about the last time you fundamentally changed how your team approached a problem based on customer feedback. What did you change and why?

2.Walk me through how you developed someone on your team who was struggling with technical delivery. What was your approach and what was the outcome?

3.Describe a time when you saw a problem affecting other teams that wasn't technically your responsibility, but you stepped in anyway. What was the outcome?

4.Describe something you learned in the last year that fundamentally changed how you approach engineering management. How did you discover this gap in your knowledge?

5.Walk me through a time when your team was stuck on a complex engineering problem for weeks, and you helped them find a much simpler approach. What was the breakthrough?

6.Tell me about a significant architectural decision you made for your team with limited data. How did you decide, and what was the result?

7.A junior engineer on your team deployed code that caused a production incident affecting checkout for 20 minutes during peak hours. Walk me through your response in the first hour.

8.You're building a feature that needs to process user preferences from Alexa, Prime, and Amazon.com. Each service has different data formats and SLAs. How would you design the data aggregation layer?

9.Your team is managing a DynamoDB table that's hitting hot partition issues during Prime Day traffic. The table serves product recommendations and latency is spiking. How would you diagnose and resolve this?

10.Your team manages an API that other teams depend on, and you want to make a breaking change to improve performance. One team is pushing back hard, saying they don't have capacity to update their integration. How do you handle this?

11.You're reviewing a design doc where a team wants to call 15 different microservices synchronously to build a product page. What are your concerns and how would you guide them?

12.You need to migrate a legacy monolith that processes orders to microservices. The system handles 50,000 orders per minute and can't have downtime. How would you approach this migration?

13.Design the inventory management system for Amazon Go stores. You need to track thousands of products across hundreds of stores in real-time as customers pick items off shelves.

14.You're building the notification system for Prime Video that handles viewing recommendations, new releases, and live sports alerts for 200 million subscribers across mobile, web, and TV platforms.

15.You're tasked with building a personalization engine that serves product recommendations to 300 million Prime members. The system needs to incorporate browsing history, purchase data, and real-time behavior.

16.Design a distributed configuration service that every AWS service uses to get runtime settings. It needs 99.99% availability even when its own dependencies fail.

17.Build a system to handle Alexa's wake word detection across 100 million devices globally. Each device processes audio locally but needs to coordinate with cloud services for updates and analytics.

18.Design the fraud detection system for Amazon's marketplace that processes 1 billion transactions daily. You need to catch fraudulent sellers while minimizing false positives that hurt legitimate businesses.

19.Describe a time when you had to make a hiring decision between two strong candidates - one who was technically excellent but new to Amazon's culture, and another who was a good cultural fit but had some technical gaps. How did you decide?

20.Tell me about a time when your team's metrics were green but you suspected there was an underlying problem that could impact customers. What did you do?

21.Tell me about a time when you had to convince a principal engineer from another team to change their service's API to support your team's needs. They initially said no because it would add complexity to their system.

22.Your team's service is experiencing a pattern where other teams keep asking for one-off customizations instead of using the standard integration. This is creating technical debt and operational burden. How do you address this?

23.You've been asked to represent engineering in a 6-pager discussion for a new Prime feature that would require significant infrastructure investment. The product team is pushing hard for Q4 delivery, but your initial assessment shows it would need Q2 next year to do it right. How do you handle this situation?

24.You're the engineering manager for a service that other Amazon teams depend on, and you need to deprecate a feature that three teams are still using because it's causing security vulnerabilities. One team says they need six months to migrate, but your security review says you have at most two months. How do you handle this?

25.Estimate how many product searches happen on Amazon.com during a typical Black Friday. Walk me through your approach and key assumptions.

26.Calculate the server capacity needed to handle Twitch chat during a major esports finals that Amazon is streaming, assuming 2 million concurrent viewers with 30% chat participation. What are your key assumptions?

27.You're analyzing Prime membership cancellation data and notice that 60% of cancellations happen within 3 days of a specific event. How would you identify what that event is?

28.AWS Lambda just introduced a new pricing model that reduces costs by 20% but increases cold start latency by 50ms. How would you evaluate whether Amazon should migrate existing customers to this model?

29.Estimate the annual cost impact if Amazon reduced free shipping threshold from $25 to $15 for non-Prime customers. Walk through your analysis.

30.You notice that Alexa's voice recognition accuracy drops by 15% during flu season. How would you investigate this pattern and what solutions would you explore?