Screen frontend engineers on browser fundamentals, performance, accessibility, framework judgment, and product craft.
Useful frontend interviews go past framework trivia. Strong candidates reason about rendering, performance, accessibility, and the user experience implications of their choices.
Test browser fundamentals: reflow, paint, layout thrashing, and the critical render path.
Uses devtools, profiles main thread, identifies layout/paint cost, and considers will-change or virtualization.
Evaluate bundle size, hydration, and user-perceived speed.
Inspects bundles, network waterfall, hydration cost, and third-party scripts.
Check semantic HTML, keyboard interaction, and inclusive defaults.
Discusses focus trapping, return focus, escape, ARIA roles, and screen reader announcements.
Put a candidate through a structured AI or human-led round and get a reportcard with the transcript and the code attached.