Design · Role guide

UX Designer Interview Questions & Preparation

Quick answer

A UX designer interview centres on a portfolio review plus questions on your design process, research, and collaboration — often with a whiteboard or take-home design challenge. Expect to walk through a project end to end (problem, research, iterations, outcome) and to defend your decisions with user evidence.

Overview

UX interviews are portfolio-led: the depth and clarity of your case studies, and how you reason about user problems, decide most hires. Employers want a clear process, research grounding, and collaboration with product and engineering.

The UX Designer interview process

UX Designer interview process1Recruiter screen2Portfolio review3Design challenge4Behavioural & team fit
UX Designer interview process
StageWhat to expect
Recruiter screenBackground, portfolio overview and role fit.
Portfolio reviewWalk through 1–2 projects end to end with your process and impact.
Design challengeA whiteboard or take-home exercise on a realistic problem.
Behavioural & team fitCollaboration with product/engineering and handling feedback.

UX Designer interview questions

These are the questions you're most likely to be asked. Prepare a structured answer for each, and a STAR story for the behavioural ones.

  1. 1Walk me through a project from problem to outcome.
  2. 2How do you approach user research?
  3. 3How do you decide between design options?
  4. 4Design an app to help people X — talk me through your thinking.
  5. 5How do you handle feedback or disagreement on a design?
  6. 6How do you measure whether a design worked?
  7. 7How do you work with engineers and PMs?
  8. 8Tell me about a design decision you got wrong.

Example STAR answer

The STAR method: Situation, Task, Action, ResultSSituationSet the sceneTTaskYour responsibilityAActionWhat you didRResultThe measurable outcome
The STAR method — structure every behavioural answer around these four steps.

Example answer to: “Walk me through a project where your design improved a metric.”

SituationOnboarding drop-off was high on a signup flow.
TaskI owned redesigning the flow to lift completion.
ActionI ran usability tests, found a confusing step, prototyped two alternatives and A/B tested them.
ResultThe winning design lifted signup completion by 22%.

Skills assessed

User researchInteraction & visual designPrototypingUsability testingCollaboration

How to prepare for a UX Designer interview

  • Curate 1–2 deep case studies that show process and impact, not just screens.
  • Ground decisions in user research, not personal taste.
  • Practise a whiteboard challenge out loud.
  • Show collaboration with product and engineering.

Common mistakes to avoid

  • A portfolio of pretty screens with no process or outcome.
  • Defending decisions with opinion, not evidence.
  • Freezing on the whiteboard challenge.
  • No metrics or user impact.

UX Designer salary

UK UX designers typically earn £40k–£65k, with senior and lead roles exceeding £80k.

Frequently asked questions

What matters most in a UX interview?

Your portfolio and how you reason through it — a clear process, research grounding, iterations and measurable outcomes.

What is a UX whiteboard challenge?

A live exercise where you tackle a realistic design problem out loud, showing how you structure the problem, explore options and decide.

Do I need to code?

No — but familiarity with how designs get built helps you collaborate with engineers.

Preparing for a UX Designer interview?

Upload your CV and paste the job description. CareerFast instantly builds your interview readiness score, a company briefing, predicted questions, tailored STAR answers, a mock interview and a downloadable PDF — free to start, no card needed.

Interview readiness score
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