2 min read Designing a Kindle-style mobile reading app is a layered system design problem. Format rendering, position sync across devices, offline downloads, […] Read article
2 min read Mobile news apps (Apple News, Google News, Flipboard, NYT app) sit at an unusual intersection of feed personalization, time-sensitive push […] Read article
2 min read “How do you decide between RAG, fine-tuning, and prompt engineering?” is one of the most-asked AI/ML interview questions of 2026. […] Read article
1 min read Pendo combines product analytics with in-app guidance — the unique pitch is “see what users do AND nudge them via […] Read interview guide
2 min read Designing a mobile wearable companion app like an Apple Watch app or Wear OS counterpart is a multi-device system design […] Read article
2 min read “Design a file sync system on mobile” is a classic system design topic that gets harder as you dig in. […] Read article
2 min read Designing a mobile podcast app is a deceptively rich system design exercise. Audio streaming with prefetch, offline downloads with smart […] Read article
3 min read How an engineering manager handles production incidents shapes the team’s reliability culture for years. Incidents are also a reliable interview […] Read article
2 min read “Design Google Docs mobile” is a frontier mobile system design question that combines real-time collaboration, offline editing, and rich text […] Read article
2 min read Mobile AR is one of the most demanding mobile system design topics — combining computer vision, real-time rendering, sensor fusion, […] Read article