Software Engineering

Frontend Developer interviews

Frontend interviews test JavaScript fundamentals, framework knowledge such as React, UI building exercises, performance and accessibility.

The interview loop

What interviews usually look like

A typical sequence. Every company runs its own process, so confirm the rounds with your recruiter.

  1. 1

    Screen

    JavaScript and framework fundamentals, often with a short coding task.

  2. 2

    UI exercise

    Build a component or small app live, or discuss a take-home.

  3. 3

    Frontend system design

    Design a feature such as an autocomplete, feed or dashboard.

  4. 4

    Behavioural

    Collaboration with designers, product and back-end teams.

Key skills

  • JavaScript and TypeScript
  • React
  • HTML semantics
  • CSS layout
  • Accessibility
  • Web performance
  • Testing

Common interview areas

  • Event loop and closures
  • Hooks and rendering
  • State management
  • Core Web Vitals
  • Browser APIs
  • Component design

Ask Agents for this role

How Ask Agents helps frontend developer candidates

  • Live Interview drafts precise explanations of concepts like the event loop or reconciliation.
  • Screen Context reads UI exercises and specs you are looking at.
  • Follow-up Questions keeps deeper “why” questions consistent with your first answer.
Software Engineering

Software Engineer

Software engineering interviews combine data structures and algorithms, system design for mid-level and senior roles, and behavioural questions about ownership and collaboration.

  • Data structures
  • Algorithms
  • Complexity analysis
Software Engineering

Backend Developer

Backend interviews focus on APIs, databases, concurrency, caching, reliability and designing services that scale.

  • API design
  • SQL and data modelling
  • Caching
Software Engineering

Full Stack Developer

Full stack interviews move between frontend and backend: building features end to end, API contracts, data modelling and deployment.

  • JavaScript and TypeScript
  • React
  • Node.js

Walk into your next interview prepared

Start free, install the Windows app and run a practice session today.