Interview Questions for a UI/UX Designer
Interviewing a UI/UX designer tests the full arc from research to polished interface. Assess how they run user research and usability testing, define information architecture and flows, wireframe and prototype, and deliver accessible high-fidelity design within a design system. Strong candidates validate decisions with real users rather than taste alone, balance user needs against business and technical constraints, and collaborate closely with product and engineering.
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Walk through their portfolio for the reasoning behind decisions, not just the visuals, and probe how research shaped the outcome. Use scenarios around conflicting feedback, an accessibility gap, and a tight constraint to test their judgment. The strongest designers ground choices in user evidence, contribute to a scalable design system, design accessibly by default, and partner with engineering from discovery through delivery rather than tossing mockups over a wall.
Technical & Role-Specific
What to look for: A clear problem, research methods chosen for the question, insights that changed the design, and a defensible link from evidence to interface decisions.
What to look for: Defining what to learn, a realistic task-based test, observing behavior over opinion, synthesizing findings, and iterating rather than just collecting comments.
What to look for: Mapping user goals and tasks, reducing friction, methods like card sorting, and flows that reflect real mental models rather than the org chart.
What to look for: Reusable components and tokens, clear usage guidelines, governance, and collaboration with engineering so the system is adopted, not ignored.
What to look for: Color contrast, focus order, keyboard and screen-reader support, semantic structure, and treating accessibility as a default rather than a final check.
What to look for: Advanced Figma use, knowing when fidelity adds value versus slows learning, components and auto-layout, and prototyping to validate interactions.
Behavioral & Past Experience
What to look for: Genuine openness to evidence, changing direction based on findings, and influencing stakeholders with research rather than defending ego.
What to look for: A clear problem, a thoughtful solution, and a real result such as improved task success, conversion, or reduced support load.
What to look for: Pragmatic tradeoffs, collaboration with product and engineering, and a solution that served users without ignoring reality.
What to look for: Separating ego from work, probing the underlying concern, iterating, and distinguishing useful feedback from noise.
What to look for: A concrete contribution, collaboration with engineering, and a real gain in consistency, speed, or quality across the product.
Situational & Problem-Solving
What to look for: Reframing around user goals and evidence, facilitating alignment, proposing a test, and deciding based on the user rather than the loudest voice.
What to look for: Lightweight methods like quick guerrilla tests, heuristics, or analytics, reasonable assumptions stated openly, and prioritizing the riskiest unknowns.
What to look for: Understanding the constraint, preserving the core user value, proposing a feasible alternative, and collaborating rather than digging in.
What to look for: Combining quantitative data with qualitative testing to find the friction, forming a hypothesis, and validating the redesign rather than guessing.
Collaboration & Culture
What to look for: Early involvement, shared problem framing, design that anticipates implementation, and staying engaged through build rather than handing off and leaving.
What to look for: Grounding decisions in user needs and evidence, listening genuinely, and influencing without becoming defensive or simply deferring.
What to look for: Making the case in user and business terms, finding pragmatic paths, and holding the line on essentials like accessibility.
UI/UX Designer interview scorecard
Score every candidate on the same criteria, immediately after the interview, using evidence you actually heard rather than an overall impression. Agree the criteria with the panel before the first interview — deciding what counts after you have met people is how the loudest interviewer wins the debrief.
| Criterion | Evidence to record | Score 1-5 |
|---|---|---|
| Technical & Role-Specific | What the candidate actually said or did, in their own example — not your impression of it | 1 2 3 4 5 |
| Behavioral & Past Experience | What the candidate actually said or did, in their own example — not your impression of it | 1 2 3 4 5 |
| Situational & Problem-Solving | What the candidate actually said or did, in their own example — not your impression of it | 1 2 3 4 5 |
| Collaboration & Culture | What the candidate actually said or did, in their own example — not your impression of it | 1 2 3 4 5 |
| Overall recommendation | Strong no / no / mixed / yes / strong yes, with the single reason that decided it | - |
Want this as a reusable document? Use the interview scorecard template.
Questions to avoid asking a UI/UX Designer
Exactly which questions are unlawful depends on where you are hiring, and the rules change — so treat this as the list of topics to route through your own employment counsel, not as a legal standard. The practical test that holds everywhere: if the answer could not change how the person does this job, you have no reason to ask it.
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Frequently asked questions
What skills should a strong UI/UX Designer have?
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