Design Uber Rider App: Location, Maps, and Real-Time ETA
3 min read “Design Uber” usually means the dispatcher backend. In a mobile system design round you are designing the rider experience: a […] Read article
Mobile System Design, System Design
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// mobile-system-design
Mobile System Design
System design problems specific to mobile apps — offline-first sync, battery, location, push notifications, and platform constraints on iOS and Android.
Mobile System Design, System Design
Design TikTok-Style Video Feed: Prefetch, Decode, and Smooth Scrolling
3 min read TikTok’s mobile feed is one of the hardest moving targets in mobile engineering. Vertical full-screen video, instant-tap scroll, autoplay with Read article
Mobile System Design, System Design
Design a Mobile Chat App: WhatsApp, iMessage, and the Hard Parts
2 min read “Design WhatsApp” sounds like a backend question, but in a mobile system design round the interviewer wants to see you Read article
