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AdvancedSystem design4 lessons · ~12 min read
Mobile System Design: The 45-Minute Playbook
A repeatable structure for the mobile design round — scope, data, transport, offline, scale — with two worked examples.
Start the first lesson4 lessons
What you walk away with
- Open a design round without freezing
- Design offline-first sync and defend the conflict policy
- Design a feed and its caching
- Talk about battery
- payload and low-end devices like a mobile engineer
A mobile design round is not a backend design round with phones drawn on it. Nobody wants your sharding strategy; they want to know whether you can keep an app correct and fast on a 2 GB device with an unreliable connection.
This track gives you one structure to reuse for any question, then applies it twice end to end.