What a web developer interview actually probes
Expect a front-end implementation question, building a component or a small piece of a page from a description or a mockup, with an eye on whether your CSS actually holds up at different screen sizes rather than only working at one. Design-handoff questions come up specifically, how you'd match spacing, typography, and interaction states, like hover, focus, and disabled, to a design file rather than approximate it.
Debugging questions lean toward the browser itself: a layout that breaks in one browser but not another, a script that fires before the DOM is ready, something you'd track down with developer tools rather than a server log. Expect a portfolio conversation too, usually your own personal site or a real client project, since that's often the clearest evidence of both your technical range and your actual taste.
Question types to expect
Front-end implementation
Building a real component or page section from a description or mockup, testing whether your solution holds up across screen sizes, not just at one width.
- Build a responsive navigation bar that collapses into a menu on smaller screens.
- Implement a form with client-side validation and clear error states.
- How would you structure the CSS for a card layout that needs to work across three breakpoints?
Design handoff and accuracy
Questions about matching spacing, typography, and interaction states to a design file precisely, testing attention to detail over a rough approximation.
- How do you make sure spacing and type match a design file exactly, not just approximately?
- Walk me through how you'd implement hover, focus, and disabled states for a button component.
- A design file doesn't specify a mobile layout. How do you decide what to build?
Browser debugging
In-browser troubleshooting questions, tracking down a layout, rendering, or timing issue using developer tools rather than a server-side log.
- A layout breaks in one browser but works fine in another. How would you track down why?
- A script is trying to access an element that isn't in the DOM yet. Walk me through how you'd debug that.
- How would you find the cause of an unexpectedly slow page load using developer tools?
Portfolio and real projects
Deep questions about a personal site or client project, testing both technical range and design judgment through real, shipped work.
- Walk me through a project in your portfolio, including a decision you'd make differently now.
- What was the trickiest cross-browser or responsive issue you solved on a real project?
- How do you decide when a client's request is worth pushing back on versus just building it?
How Intervieux helps you prepare
The technical interview type puts you through front-end coding and debugging challenges with real code execution, Piston runs your code with language auto-detection, useful for practicing JS and TypeScript specifically the way you'd actually write them on the job, alongside hidden and visible test cases so you find out whether a solution actually works.
The resume-based interview type builds questions from your own portfolio and client projects, so a portfolio-conversation practice session is grounded in real, shipped work rather than a hypothetical.
Scoring covers five dimensions, and Technical reflects the correctness and precision of your implementation, while Communication reflects how clearly you can walk through a design or debugging decision, both weighted heavily since front-end work is judged as much on execution detail as on whether something technically runs.
The resume library lets you keep a portfolio-focused version of your resume separate from a more general one, useful if you work across both personal projects and client work.
Practice, then apply
Practice privately, then apply for real
Practice sessions stay private, giving you room to work through a design-handoff question or a browser-debugging scenario a few times before a real interviewer hears your first attempt. The board never charges to browse or apply, and one-click apply carries you into a live AI screening interview built from that employer's own posting. Browse current web developer openings on the job board.
Frequently asked questions
Is a web developer interview the same as a general software engineering interview?
Not quite. It leans more heavily on front-end implementation accuracy, design handoff, and browser-specific debugging than a general software engineering loop, which spends more time on algorithms and system design.
Can I pick which programming language a technical practice interview uses?
Technical challenges run real code through Piston with language auto-detection across JS, TypeScript, Python, Java, C++, Go, Rust, and C#, so you can practice specifically in JS and TypeScript the way front-end work is usually written.
Will I be asked to match a design file exactly, or is a close approximation fine?
Expect a question specifically about matching spacing, typography, and interaction states closely, since design-handoff accuracy is a common way interviewers distinguish candidates beyond whether the code simply runs.
How is Technical scored for a web developer interview?
It reflects the correctness and precision of your front-end implementation, since the same five scoring dimensions apply across interview types with role-appropriate calibration for the work being tested.
Will practice questions reference my actual portfolio, not a generic project?
Yes, if you run a resume-based interview. It builds questions from your own portfolio and client work, so a project walkthrough is grounded in something you actually built.
Related pages
Practice a web developer interview loop
Run a technical or resume-based AI interview to work through front-end implementation, design handoff, and browser debugging before an employer sees you.