Who is this Frontend Developer interview plan for?

It is written for the interviewer, not the candidate: the hiring manager, engineer or panel member running the Technical Interview round for a Frontend Developer role. It gives you a 60 min script to follow in the conversation — 11 questions with what each one is for and the signals to score against — so you are not writing the round from scratch the night before.

How is the 60 min split up?

Introduction (5 min), Frontend Technologies and Frameworks (15 min), Performance Optimization (10 min), Cross-Browser Compatibility and Accessibility (10 min), Problem-solving and Collaboration (10 min), Closing (5 min). The timings are there so the round stays on schedule and every candidate gets the same shape of interview — which is what makes two candidates comparable afterwards.

What other rounds should I run for a Frontend Developer?

A single round does not cover a whole role. The other rounds in this library for a Frontend Developer are Behavioral Interview, Coding Test, Portfolio Review and UI/UX Assessment. Each is a separate plan you can use as it is.

Interview plan template

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Frontend Developer interview questionsTechnical Interview round

A 60 min interview plan with a time-boxed script, what each question is for, and the signals to score against. Key skills: Frontend Technologies, Frameworks, Performance Optimization, Cross-Browser Compatibility, Accessibility Standards.

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Introduction

5 min

•

Hi, I’m [YOUR_NAME], and I’m a [YOUR_TITLE] at [COMPANY_NAME]. I’m excited to learn more about your experience today.

•

Could you briefly introduce yourself and share what attracted you to apply for this position?

What this question is for, and what to listen for

Purpose

Assess communication skills, alignment with the role, and initial confidence.

Signals to score

Clear introduction provided
Relevant experience mentioned
Motivations for applying explained
Alignment with team values
Specific skills highlighted
Response is concise and organized
Understanding of role requirements

Follow-up questions

What excites you most about this position?
How does your background align with our team’s work?
... mode leading questions ...

•

Great, thank you for sharing! In the next 45-50 minutes, we’ll talk about your experience and how you work in a team. After that, you can ask any questions you have about the role or the company.

Frontend Technologies and Frameworks

15 min

•

What are the main differences between React and Angular?

What this question is for, and what to listen for

Purpose

Evaluate understanding of popular frontend frameworks.

Signals to score

Differences in architecture mentioned
Use cases for each framework
Performance considerations
Community support
Learning curve
Integration capabilities
Personal preference explained

Follow-up questions

Can you describe the architecture of each?
What are the key features of React?
How does Angular handle data binding?

•

How do you manage state in a React application?

What this question is for, and what to listen for

Purpose

Assess understanding of state management in React.

Signals to score

Use of hooks mentioned
Context API explained
Redux or other libraries
Local vs global state
Performance considerations
Code examples provided
Personal experience shared

Follow-up questions

What are React hooks?
How does the Context API work?
When would you use Redux?

•

Can you explain the lifecycle of a component in React?

What this question is for, and what to listen for

Purpose

Evaluate understanding of React component lifecycle.

Signals to score

Lifecycle phases mentioned
Mounting, updating, unmounting
Use of lifecycle methods
Hooks as alternatives
Practical examples
Performance optimization
Error handling

Follow-up questions

What happens during the mounting phase?
How do you handle updates?
What is the use of useEffect?

Performance Optimization

10 min

•

How do you optimize the performance of a web application?

What this question is for, and what to listen for

Purpose

Evaluate understanding of performance optimization strategies.

Signals to score

Code splitting
Lazy loading
Caching strategies
Image optimization
Minification
Network requests
Performance monitoring

Follow-up questions

What is code splitting?
How does lazy loading work?
Why is caching important?

•

What tools do you use to monitor and improve web performance?

What this question is for, and what to listen for

Purpose

Assess familiarity with performance monitoring tools.

Signals to score

Chrome DevTools
Lighthouse
WebPageTest
Performance budgets
Real User Monitoring (RUM)
Profiling tools
Experience with tools shared

Follow-up questions

How do you use Chrome DevTools?
What is Lighthouse?
How do you set performance budgets?

Cross-Browser Compatibility and Accessibility

10 min

•

How do you ensure cross-browser compatibility in your projects?

What this question is for, and what to listen for

Purpose

Evaluate understanding of cross-browser compatibility techniques.

Signals to score

Use of polyfills
CSS resets
Testing on multiple browsers
Vendor prefixes
Responsive design
Browser-specific issues
Experience shared

Follow-up questions

What are polyfills?
How do you handle vendor prefixes?
Why is testing important?

•

What steps do you take to ensure web accessibility?

What this question is for, and what to listen for

Purpose

Assess understanding of web accessibility standards.

Signals to score

Use of semantic HTML
ARIA roles
Keyboard navigation
Color contrast
Screen reader testing
Accessibility audits
Personal experience shared

Follow-up questions

What is semantic HTML?
How do ARIA roles help?
Why is color contrast important?

Problem-solving and Collaboration

10 min

•

Describe a challenging problem you faced in a project and how you solved it.

What this question is for, and what to listen for

Purpose

Evaluate problem-solving skills and resilience.

Signals to score

Clear problem description
Steps taken to solve
Collaboration with team
Tools or methods used
Outcome explained
Lessons learned
Personal growth

Follow-up questions

What was the problem?
How did you approach it?
What was the outcome?

•

How do you handle disagreements in a team setting?

What this question is for, and what to listen for

Purpose

Assess collaboration and conflict resolution skills.

Signals to score

Open communication
Active listening
Finding common ground
Respectful discussions
Compromise
Team goals prioritized
Personal experience shared

Follow-up questions

How do you communicate your point?
How do you ensure everyone is heard?
What if a compromise isn't possible?

Closing

5 min

•

Do you have any questions for me about the team or the company?

What this question is for, and what to listen for

Purpose

Gauge the candidate’s curiosity and interest in the role.

Signals to score

Thoughtful questions asked
Interest in company culture
Curiosity about growth expressed
Questions about role raised
Inquiries about team challenges
Engagement with responses shown
Desire to learn next steps
Focus on company values expressed

Follow-up questions

What interests you most about this team?
Are there any areas of the role you’d like to explore further?
... mode leading questions ...

•

Thank you for your time today. We’ll be in touch soon regarding the next steps.

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Interview Template

Position

Frontend Developer

Round

Technical Interview for 60 min

Key skills

Frontend Technologies, Frameworks, Performance Optimization, Cross-Browser Compatibility, Accessibility Standards

Frontend Developer interviews — common questions

Who is this Frontend Developer interview plan for?: It is written for the interviewer, not the candidate: the hiring manager, engineer or panel member running the Technical Interview round for a Frontend Developer role. It gives you a 60 min script to follow in the conversation — 11 questions with what each one is for and the signals to score against — so you are not writing the round from scratch the night before.
What does the Technical Interview round assess?: This round is focused on: Frontend Technologies, Frameworks, Performance Optimization, Cross-Browser Compatibility, Accessibility Standards. It works through Introduction, Frontend Technologies and Frameworks, Performance Optimization, Cross-Browser Compatibility and Accessibility, Problem-solving and Collaboration and Closing, scoring against 75 observable signals, with follow-up prompts on all 11 questions for going deeper where an answer is thin.
How is the 60 min split up?: Introduction (5 min), Frontend Technologies and Frameworks (15 min), Performance Optimization (10 min), Cross-Browser Compatibility and Accessibility (10 min), Problem-solving and Collaboration (10 min), Closing (5 min). The timings are there so the round stays on schedule and every candidate gets the same shape of interview — which is what makes two candidates comparable afterwards.
What other rounds should I run for a Frontend Developer?: A single round does not cover a whole role. The other rounds in this library for a Frontend Developer:
Behavioral Interview
Coding Test
Portfolio Review
UI/UX Assessment