Senior Frontend Developer
Mock Frontend Interviews with AI to Get Senior-Level Offers
Practice real senior frontend interviews, fix critical gaps, and walk into interviews confident and prepared.
Start Your Interview TestPractice Senior Interview Answers Before It Matters
Get instant AI feedback on structure, clarity, and senior-level reasoning — before the real interview.
Screening
DoneSystem Design
NextSimulate real senior frontend interviews and practice explaining your decisions under pressure — without risking a real offer.
Even Strong Senior Developers Fail Interviews
Experience alone isn’t enough when interviews focus on reasoning, trade-offs, and communication.
What you will achieve
Real outcomes that transform your interview performance
Master technical leadership questions
Demonstrate expertise in architecture decisions, code reviews, and mentoring junior developers.
Showcase system design thinking
Articulate scalable solutions, performance optimization, and frontend architecture patterns.
Stand out in behavioral rounds
Share compelling stories about cross-team collaboration, conflict resolution, and project ownership.
Negotiate senior-level compensation
Build confidence to discuss equity, benefits, and salary packages that match your experience.
Strong knowledge of React and TypeScript. Slight gaps in communication and leadership answers.
React & TypeScript
88%
Coding Skills
90%
Problem Solving
80%
Communication & Leadership
70%
Take the Interview Readiness Test
In less than 5 minutes, you'll get:
Personalized Interview Readiness Score
Technical analysis on system design and architecture answers
Leadership competency assessment with behavioral response feedback
Framework-specific insights (React, Vue, Angular)
Strategic action plan to address gaps in frontend architecture knowledge
Why candidates improve so quickly
A proven method that delivers measurable results
Real interview simulation
Practice in real interview conditions — no tutors needed.
AI feedback that matters
Improve your impact, structure, clarity, and delivery.
Personalized answer scripts
Based on your CV, experience, and target role.
Questions you will practice
Real Senior Frontend Developer interview questions you're likely to be asked
How would you design the frontend architecture for a large-scale dashboard with real-time data updates?
TypeScript
Frontend System Design
State Management
Explain how React reconciliation works and how it affects performance.
React & Next.js
Rendering Performance
How would you structure state management for a complex application with nested components and async data?
State Management
React & Next.js
Vue & Pinia
Describe how you would diagnose and fix a performance regression caused by excessive re-renders.
Rendering Performance
React & Next.js
Angular & RxJS
How do you design a reusable component library shared across multiple products or teams?
Component Libraries
TypeScript
React & Next.js
Walk me through how you would improve Core Web Vitals for a slow single-page application.
Core Web Vitals
Performance Metrics
Rendering Performance
How do you handle error boundaries and fallback UI in modern frontend frameworks?
React & Next.js
Vue & Pinia
Angular & RxJS
Describe a time you led a frontend refactor or migration (e.g., from class components to hooks or from a legacy stack to a modern framework).
React & Next.js
Vue & Pinia
Angular & RxJS
Tech stack covered
Tailored practice for your framework and seniority level
Interview questions matched to your exact tech stack
System design scenarios used by top product companies
Performance and architecture patterns for senior roles
Real-world scenarios, not just theory
Frameworks & Libraries
React & Next.js
Vue & Pinia
Angular & RxJS
TypeScript
Architecture & Design
Frontend System Design
Micro-frontends
State Management
Component Libraries
Performance & Optimization
Rendering Performance
Bundling & Code Splitting
Lazy Loading
Caching Strategies
Testing & Quality
Jest & React Testing Library
Cypress & E2E Testing
Integration Testing
UX & Accessibility
WCAG Standards
Semantic HTML
Performance Metrics
Core Web Vitals
Who this is for
Designed specifically for experienced frontend engineers
See the type of feedback you'll get
Precise, actionable insights instead of generic comments
How would you improve the performance of a React app that feels slow?
I would use React.memo and lazy loading to reduce unnecessary renders.
Good direction, but your answer is too shallow for a senior role. Mention measuring first (profiling with React DevTools and the browser Performance panel), then specific bottlenecks (large bundles, unnecessary network calls, expensive components). Strengthen your answer by adding concrete techniques: code splitting via dynamic imports, memoizing expensive selectors, virtualization for long lists, and leveraging browser caching and a CDN. Close with how you'd monitor improvements over time.
How would you design the frontend architecture for a large multi-page product?
I would split the app into reusable components and use a global store for state.
For a senior-level interview, you should go beyond 'components + global store'. Talk about module boundaries (feature-based folders, domain-driven slices), isolated design systems, clear contracts between API and UI, and how you avoid tight coupling. Mention decisions around routing, data-fetching strategy (for example React Query or SWR), error handling, and how you'd support gradual refactors or micro-frontend approaches. This shows you think like an architect, not just an implementer.
Choose your interview preparation plan
Everything you need to stand out and get the job
Monthly Plan
Consistent improvement with structured interview coaching and personalized practice.
Includes:
Full access to all simulations
Unlimited answer reviews
CV-based answer optimization
Confidence score tracking
Salary negotiation preparation
Advanced Plan
For people seeking long-term career growth and comprehensive interview preparation.
Includes:
Custom interview roadmap
New features & simulations added regularly
Priority support
Early access to new tools
FAQ
You can practice for senior frontend, lead, and staff-level interviews including technical rounds, frontend system design, live coding, and behavioral interviews focused on React, Vue, Angular, TypeScript, and modern web architecture.
Our AI evaluates your answers for technical depth (architecture, performance, state management), clarity, structure, and communication. You receive concrete suggestions on what to add, remove, or reframe to sound like a strong senior frontend engineer.
Yes. You can tailor sessions to your target role, tech stack (React, Vue, Angular, etc.), and seniority level. You can also focus on specific areas like system design, performance optimization, or behavioral questions.
No. All sessions are on-demand. You can practice anytime with AI-powered mock interviews, review feedback immediately, and repeat questions as often as you want.
