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Frontend Developer interview questions

The most likely questions in a Frontend Developer interview. Prepare EACH from your real experience — below we build your answers free.

Role-specific questions

1. 1. How would you optimize the load time and performance of a React app?
2. 2. Explain the difference between local state, context and a global store — when do you use each?
3. 3. How do you ensure accessibility (a11y) in a complex component?
4. 4. Walk me through how you debug an unnecessary re-render.
5. 5. How do you handle errors and loading states in API calls?
6. 6. What strategy do you use to keep CSS scalable on a large team?

The usual behavioral ones

1. 1. Tell me about yourself and your experience.
2. 2. Why do you want this role and this company?
3. 3. Tell me about a project you're proud of and your specific contribution.
4. 4. Tell me about a mistake you made and what you learned.
5. 5. How do you handle a disagreement with a teammate or your manager?
6. 6. Where do you see yourself in a couple of years?

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