System Design Interview: Design Live Comments w/ a Ex-Meta Staff Engineer

Опубликовано: 18 Май 2026
на канале: Hello Interview - SWE Interview Preparation
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📝 Full written breakdown: https://hellointerview.com/youtube/fb...
💪 Practice this problem with live AI feedback: https://hellointerview.com/practice/y...
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00:00 - Intro
01:31 - The Approach
4:05 - Requirements
11:15 - API & Core Entities
17:16 - High Level Design
26:19- Deep Dives
55:45 - Conclusion

A step-by-step breakdown of everyones first system design interview question, Design FB Live Comments.

Evan, a former Meta Staff Engineer and current co-founder of Hello Interview, walks through the problem from the perspective of an interviewer.

Connect with me on LinkedIn:
Evan:   / evan-king-40072280  

Resources:
1. Practice with our new Guided Practice: https://www.hellointerview.com/practice
2. Detailed write up of the problem: https://www.hellointerview.com/learn/...
3. System Design In a Hurry: https://www.hellointerview.com/learn/...
4. Excalidraw used in the video: https://link.excalidraw.com/l/56zGeHi...
5. Vote for the question you want us to do next: https://www.hellointerview.com/learn/...

Good luck with your upcoming interviews!