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System Design Interview Patterns Series' Articles

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Cover image for Design a Multiplayer Game Lobby (NAT Traversal, Matchmaking, Anti-Cheat)

May 23

Design a Multiplayer Game Lobby (NAT Traversal, Matchmaking, Anti-Cheat)

#systemdesign #interview #gamedev #networking

12 min read

Cover image for Design a Video Upload Pipeline: Chunked, Resumable, Fan-Out Transcode

May 23

Design a Video Upload Pipeline: Chunked, Resumable, Fan-Out Transcode

#systemdesign #interview #video #distributedsystems

12 min read

Cover image for Design a Real-Time Ad-Bidding System (The Way Interviewers Actually Want)

May 23

Design a Real-Time Ad-Bidding System (The Way Interviewers Actually Want)

#systemdesign #interview #adtech #distributedsystems

11 min read

Cover image for Design a Distributed Counter: Views, Likes, and the Hot Key You Forgot

May 23

Design a Distributed Counter: Views, Likes, and the Hot Key You Forgot

#systemdesign #interview #distributedsystems #scalability

12 min read

Cover image for Design a Feature Flag Service: 100k SDK Clients and the SSE Protocol Reframe

May 24

Design a Feature Flag Service: 100k SDK Clients and the SSE Protocol Reframe

#systemdesign #interview #distributedsystems #scalability

11 min read

Cover image for Design a Feature Flag Service: 100k SDK Clients and the SSE Protocol Reframe

May 24

Design a Feature Flag Service: 100k SDK Clients and the SSE Protocol Reframe

#systemdesign #interview #distributedsystems #scalability

11 min read

Cover image for Design a Job Scheduler at 10M Jobs/Day: 4 Components, 3 Failure Modes

May 24

Design a Job Scheduler at 10M Jobs/Day: 4 Components, 3 Failure Modes

#systemdesign #interview #distributedsystems #scalability

12 min read

Cover image for Design a Real-Time Collaboration Backend (OT vs CRDT, Step by Step)

May 24

Design a Real-Time Collaboration Backend (OT vs CRDT, Step by Step)

#systemdesign #interview #realtime #distributedsystems

11 min read

Cover image for Design a Payment Ledger: Idempotent, Audit-Compliant, Reconciles to the Cent

May 24

Design a Payment Ledger: Idempotent, Audit-Compliant, Reconciles to the Cent

#systemdesign #interview #fintech #distributedsystems

12 min read

Cover image for Design a Multi-Device Authentication Service (Sessions vs JWT vs Passkeys)

May 24

Design a Multi-Device Authentication Service (Sessions vs JWT vs Passkeys)

#systemdesign #interview #security #auth

10 min read