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∞ Mid-level · Apr 2026 Meta
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Premium Content Unlock premium breakdowns, patterns, and deep dives across System Design and Low-Level Design, plus our full behavioral course. You’ll also get premium videos throughout the library, covering everything from architecture tradeoffs to story structure.
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Core Concepts Database Indexing Video · Quiz › Core Concepts Numbers to Know Quiz › Problem Breakdowns Yelp Video · Quiz › Problem Breakdowns Instagram Video · Quiz › Problem Breakdowns Strava Quiz › Problem Breakdowns Distributed Cache Quiz › Problem Breakdowns Online Auction Video · Quiz › Problem Breakdowns Job Scheduler Video · Quiz › Problem Breakdowns News Aggregator Quiz › Problem Breakdowns Price Tracking Service Video · Quiz › Problem Breakdowns Robinhood Quiz › Problem Breakdowns Google Docs Video · Quiz › Problem Breakdowns Payment System Video · Quiz › Problem Breakdowns Metrics Monitoring Video · Quiz › Problem Breakdowns ChatGPT Quiz › Patterns Real-time Updates Video · Quiz › Patterns Dealing with Contention Quiz › Patterns Multi-step Processes Video · Quiz › Patterns Scaling Reads Video · Quiz › Patterns Scaling Writes Video · Quiz › Patterns Handling Large Blobs Quiz › Patterns Managing Long Running Tasks Quiz › Deep Dives PostgreSQL Quiz › Deep Dives Flink Quiz › Deep Dives ZooKeeper Quiz › Advanced Topics Data Structures for Big Data Video · Quiz › Advanced Topics Vector Databases Quiz › Passed OpenAI Senior Interview “I treated the material like a college course and actually had a fun time learning so much.” Passed Stripe Principal Interview “Multiple rounds of system design questions were similar to the ones in the library.” Passed Anthropic Staff Interview “The material helped me go beyond classical textbook answers for a staff-level role.” Passed Intuit Staff Interview “The premium subscription was worth every penny. I finally understood the Staff+ bar.” Passed Meta Senior Interview “A similar question was in the library, so I could save time and handle every follow-up.” Passed Figma Staff Interview “The deep dives and the tutor helped me learn system design almost from scratch.” What is included with NihaoInterview Premium? All premium learning content, the interview question library, and unlimited access to your personal tutor.
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