Field notes / 61 readings

System Design

A practical index of architectures, patterns, and technologies for designing systems that survive the real world. Start anywhere · follow your curiosity

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Foundations

The language, constraints, and reasoning tools behind every strong design.

001System Design in a Hurry→ 002How to Prepare for System Design Interviews→ 003System Design Delivery Framework→ 004Core Concepts for System Design Interviews→ 005System Design Key Technologies→ 006System Design Interview Patterns→ 007Networking Essentials→ 008API Design→ 009CAP Theorem Deep Dive→ 010Consistent Hashing Deep Dive→ 011Numbers to Know→ 012Database Indexing Deep Dive→
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Case Studies

End-to-end designs for products people use every day.

013Design a URL Shortener Like Bit.ly→ 014Design a File Storage Service Like Dropbox→ 015Design a Local Delivery Service Like Gopuff→ 016Design a News Aggregator Like Google News→ 017Design a Ticket Booking Site Like Ticketmaster→ 018Design Facebook's News Feed→ 019Design a Dating App Like Tinder→ 020Design a Coding Platform Like LeetCode→ 021Design a Messaging App Like WhatsApp→ 022Design a Local Business Review Site Like Yelp→ 023Design a Fitness Tracking App Like Strava→ 024Design a Distributed Rate Limiter→ 025Design an Online Auction Platform Like eBay→ 026Design Facebook's Live Comments System→ 027Design Facebook's Post Search→ 028Design a Price Tracking Service Like CamelCamelCamel→ 029Design a Photo Sharing App Like Instagram→ 030Design YouTube's Top K Videos Feature→ 031Design a Ride-Sharing Service Like Uber→ 032Design a Stock Trading Platform Like Robinhood→ 033Design a Collaborative Editor Like Google Docs→ 034Design a Distributed Cache Like Redis→ 035Design a Video Streaming Platform Like YouTube→ 036Design a Distributed Job Scheduler Like Airflow→ 037Design a Web Crawler→ 038Design an Ad Click Aggregator→ 039Design a Payment System Like Stripe→ 061Design a Metrics Monitoring Platform Like Datadog→
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Patterns

Reusable moves for pressure points that appear across many systems.

040Real-time Updates→ 041Dealing with Contention→ 042Multi-step Processes→ 043How to Scale Reads→ 044How to Scale Writes→ 045Handling Large Blobs→ 046Managing Long Running Tasks→
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Technologies

What the infrastructure building blocks actually do—and when to choose them.

047Redis Deep Dive→ 048Elasticsearch Deep Dive→ 049Kafka Deep Dive→ 050API Gateway Deep Dive→ 051Cassandra Deep Dive→ 052DynamoDB Deep Dive→ 053PostgreSQL Deep Dive→ 054Flink Deep Dive→ 055ZooKeeper Deep Dive→
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Data at Scale

Storage, movement, and modeling when one machine is no longer enough.

056Data Structures for Big Data→ 057Caching→ 058Data Modeling→ 059Sharding→ 060Time Series Databases→

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