Scale a Notification System
This interview assesses the candidate's ability to design and scale a notification system, focusing on architecture, scalability, and failure management.
You will be asked 6 questions covering different aspects of the topic.
How would you design a basic notification system that sends alerts to users via email and SMS?
What considerations would you take into account to ensure the notification system can handle a sudden spike in traffic?
How would you ensure that the notification system is fault-tolerant and can recover from failures?
Discuss the trade-offs between using a push-based versus a pull-based model for sending notifications.
How would you handle user preferences and ensure that notifications are sent according to their settings?
What strategies would you implement to monitor the performance and health of the notification system?
- How to explain Basic Architecture clearly and confidently.
- How to explain Communication Protocols clearly and confidently.
- How to explain User Interface clearly and confidently.
- How to explain Scalability clearly and confidently.
- How to explain Load Balancing clearly and confidently.
- Basic familiarity with system_design.
- Basic familiarity with scalability.
- Basic familiarity with architecture.
- Basic familiarity with notifications.
Take your time to think through each question before answering. The AI evaluator will assess your thought process, not just the final answer.
Discuss trade-offs and explain why you chose a particular approach over alternatives.

