Meta.

The rounds, as candidates describe them

1. CodingTwo coding rounds, usually two medium problems each.source ↗
2. System design or product designA system design round, a product (architecture) design round, or both at E5 and above.source ↗
3. BehaviouralOne behavioural round.source ↗

• Design a Web CrawlerSystem design
  IP-05 · Design a Web Crawler →W03 · DAY 03 · Backpressure and Flow Control →reported in:LeetCode Discuss · Meta London E5 onsite, crawl with 10^9 machines (2024) ↗LeetCode Discuss · Meta E5 US, one-time crawl of a huge site (2023) ↗LeetCode Discuss · Facebook E5 New York onsite (2020) ↗
• Design a News FeedSystem design
  IP-07 · Design a News Feed →SQ-21 · Instagram Feed and Stories →W04 · DAY 04 · Feed Caching →reported in:LeetCode Discuss · Meta E5 Warsaw, Instagram feed (2024) ↗
• Design a Proximity ServiceSystem design
  IP-13 · Design a Proximity Service →W01 · DAY 01 · Partitioning Deep-Dive →reported in:LeetCode Discuss · Meta E5 Seattle, nearby friends and places (2023) ↗
• Design a Chat SystemSystem design
  IP-08 · Design a Chat System →SQ-02 · WhatsApp Messaging →reported in:LeetCode Discuss · Facebook E5 London (2021) ↗
• Design an Online Judge (LeetCode)System design
  W03 · DAY 01 · Queue vs Stream →W09 · DAY 02 · Noisy Neighbor Prevention →IP-14 · Design a Real-Time Leaderboard →reported in:LeetCode Discuss · Meta E5 onsite (2024) ↗
• Design Live CommentsSystem design
  IP-08 · Design a Chat System →W04 · DAY 04 · Feed Caching →W03 · DAY 03 · Backpressure and Flow Control →reported in:LeetCode Discuss · Facebook E5 East Coast (2021) ↗
• Design a Video Streaming ServiceSystem design
  SQ-06 · Netflix Streaming →SQ-19 · YouTube Video Platform →reported in:LeetCode Discuss · Facebook E5 Menlo Park onsite, Netflix-like service (2021) ↗
• Design an Ad Moderation PipelineSystem design
  W03 · DAY 04 · Dead Letters and Poison Pills →W03 · DAY 01 · Queue vs Stream →W08 · DAY 02 · Streaming vs Batch Processing →reported in:LeetCode Discuss · Meta E5 London, remove bad ads before users see them (2024) ↗
• Design a Keyword Search FeatureSystem design
  W07 · DAY 01 · Search Fundamentals & Architecture →W07 · DAY 02 · Indexing Pipeline →reported in:LeetCode Discuss · Meta E5 US, offer (2024) ↗
• Design a Load BalancerSystem design
  W00 · PART 2 · Infrastructure Building Blocks →W00 · PART 4 · Networking Fundamentals for System Design →reported in:LeetCode Discuss · Facebook E5 remote (2021) ↗
• Design Instagram StoriesSystem design
  SQ-21 · Instagram Feed and Stories →W04 · DAY 05 · Multi-Tier Caching →reported in:LeetCode Discuss · Meta E5 Android London (2022) ↗

• Design an Ad Click Aggregation SystemSystem design
  IP-16 · Design an Ad Click Aggregation System →W08 · DAY 04 · Late-Arriving Data and Correctness →
• Design a Real-Time LeaderboardSystem design
  IP-14 · Design a Real-Time Leaderboard →W01 · DAY 04 · Hot Keys and Skew →

Study path

Every lesson the questions above point to, once, in order.

1. 01IP-05Design a Web Crawler
2. 02W03 · DAY 03Backpressure and Flow Control
3. 03IP-07Design a News Feed
4. 04SQ-21Instagram Feed and Stories
5. 05W04 · DAY 04Feed Caching
6. 06IP-13Design a Proximity Service
7. 07W01 · DAY 01Partitioning Deep-Dive
8. 08IP-08Design a Chat System
9. 09SQ-02WhatsApp Messaging
10. 10W03 · DAY 01Queue vs Stream
11. 11W09 · DAY 02Noisy Neighbor Prevention
12. 12IP-14Design a Real-Time Leaderboard
13. 13SQ-06Netflix Streaming
14. 14SQ-19YouTube Video Platform
15. 15W03 · DAY 04Dead Letters and Poison Pills
16. 16W08 · DAY 02Streaming vs Batch Processing
17. 17W07 · DAY 01Search Fundamentals & Architecture
18. 18W07 · DAY 02Indexing Pipeline
19. 19W00 · PART 2Infrastructure Building Blocks
20. 20W00 · PART 4Networking Fundamentals for System Design
21. 21W04 · DAY 05Multi-Tier Caching
22. 22IP-16Design an Ad Click Aggregation System
23. 23W08 · DAY 04Late-Arriving Data and Correctness
24. 24W01 · DAY 04Hot Keys and Skew