Frontend Developer Interview Questions
10 questions with tips and sample answers for remote job interviews in 2026.
1 technical How do you approach performance optimization on a slow-loading web page?
What to include: Start with Lighthouse. Core Web Vitals: LCP (images, critical CSS), FID (JS execution), CLS (layout shifts). Lazy-load, code-split, cache assets.
Practice this question with AI feedback →2 technical Explain the difference between server-side rendering, static generation, and client-side rendering. When do you use each?
What to include: SSR: dynamic, SEO-sensitive. SSG: content that does not change per request. CSR: highly interactive dashboards. Mix is common (Next.js ISR).
Practice this question with AI feedback →3 behavioral How do you ensure your UI works across browsers and devices?
What to include: Progressive enhancement, Browserslist config, BrowserStack or Playwright for cross-browser testing, CSS feature detection over UA sniffing.
Practice this question with AI feedback →4 remote How do you collaborate with designers on a remote team?
What to include: Figma with dev mode, async feedback on Loom, clear handoff criteria (spacing tokens, responsive breakpoints), and a "design freeze" before build starts.
Practice this question with AI feedback →5 technical What is your approach to accessibility (a11y) in the components you build?
What to include: Semantic HTML first, ARIA only where HTML falls short, keyboard nav, colour contrast, screen-reader testing with VoiceOver or NVDA.
Practice this question with AI feedback →6 behavioral Tell me about a technically complex UI you built. What made it hard?
What to include: Pick something concrete: a virtualized list, a drag-and-drop interface, a real-time collaborative editor. Focus on what the constraint was and how you solved it.
Practice this question with AI feedback →7 technical How do you manage global state in a large React or Vue application?
What to include: Context API or Zustand for small apps; Redux or Pinia for large. Server state (React Query / TanStack Query) is separate from client state.
Practice this question with AI feedback →8 situational You inherit a codebase with no tests and significant technical debt. How do you proceed?
What to include: Audit first: what is most likely to break? Add tests around those areas before refactoring. Do not rewrite — refactor incrementally.
Practice this question with AI feedback →9 remote How do you keep up with the rapidly changing frontend ecosystem while working remotely?
What to include: Curated newsletters, following a few trusted engineers, reading release notes. Show you apply judgment — you do not chase every new tool.
Practice this question with AI feedback →10 motivation What is a web technology or browser API you are excited about right now?
What to include: Be specific (View Transitions API, CSS Container Queries, Baseline, etc.). Show genuine curiosity, not a rehearsed answer.
Practice this question with AI feedback →Practice answering with AI scoring
Type your answer to any question above and get scored feedback on structure, specificity, quantification, conciseness, and remote-readiness — free, no signup.