Coaching Senior ICs to Staff Engineer
3 min read The Senior → Staff transition is one of the hardest in engineering. Many strong senior engineers stay at Senior for […] Read article
Engineering Manager
Engineering Manager
Building a Writing Culture in Engineering Teams
3 min read Companies with strong engineering writing cultures (Stripe, Amazon, Anthropic, Stripe again) consistently outperform peers on technical decision-making, onboarding, and asynchronous Read article
Engineering Manager
EM at Startup vs Scaleup vs Public Company
2 min read Engineering management looks superficially similar across company stages but is fundamentally different in practice. The same person can thrive at Read article
Frontend Engineering
Browser DevTools Mastery: Performance, Memory, and Network Profiling
2 min read Senior frontend engineers spend more time in DevTools than in their IDE. Yet most engineers use 5% of the available Read article
Frontend Engineering
CSS-in-JS in 2026: Tailwind, CSS Modules, and the Ecosystem Shift
2 min read The CSS-in-JS landscape has shifted significantly. The 2020 era of “styled-components is the default” is over. Modern frontend leans toward Read article
Frontend Engineering
Frontend Internationalization: i18n, RTL, and Locale-Aware UI
3 min read Internationalization (i18n) is one of those frontend areas where the surface looks simple (“just translate the strings”) but the depth Read article
Frontend Engineering
WebSocket vs SSE vs Long Polling: Real-Time Frontend Choices
2 min read Choosing the right real-time mechanism is a frontend system design question that comes up routinely in senior interviews. WebSocket is Read article
Frontend Engineering
Build Real-Time Collaborative Cursors: Figma-Style Presence
2 min read Live cursors — those tiny avatars showing where other people are clicking — became table stakes for collaborative apps after Read article
Frontend Engineering
Build a Drag-and-Drop Kanban Board: HTML5 DnD vs JS Libraries
2 min read “Build a Kanban board with drag-and-drop” is a frequent frontend interview question because it tests gesture handling, accessibility, layout stability, Read article
Mobile System Design, System Design
Design a Mobile Voice Assistant: Wake Word and On-Device ASR
4 min read Voice assistants (Siri, Google Assistant, Alexa) are deceptively complex mobile system design topics. Always-listening for a wake word, on-device automatic Read article
Mobile System Design, System Design
Design a Mobile Driver App: Uber Driver Style
6 min read The Uber driver app is a different beast from the rider app. It runs all day, must survive on cellular, Read article
Mobile System Design, System Design
Design Mobile Crash Reporting and Telemetry
5 min read Crash reporting (Crashlytics, Sentry, Bugsnag) is a system design topic that touches mobile SDK design, server-side processing of millions of Read article
Mobile System Design, System Design
Design a Mobile Loyalty App: Starbucks-Style Rewards
5 min read Mobile loyalty apps (Starbucks, Chipotle, Dunkin) are unusually rich mobile system design topics. They combine payment processing, loyalty points, mobile Read article
Mobile System Design, System Design
Design Mobile Deep Linking and Universal Links
3 min read Deep linking — the ability to open a specific screen in your app from a URL — is fundamental to Read article
Mobile System Design, System Design
Design Mobile App Onboarding: Permissions, Login, First-Run
2 min read Onboarding is one of the highest-leverage UI flows. Every percentage point of drop-off is real users who never become customers. Read article
