How to assess · For hiring teams
How to Assess UI Design Skills When Hiring
The test formats that actually work for UI Design, what a strong answer looks like, sample questions and a scoring rubric you can use as-is.
The short answer
Assess UI Design with a task, not a conversation: screen design within a system, hierarchy critique, ai-scored assessment (e.g. cohesyve) or accessibility review. Score it against written criteria you fix before you see any submissions, and weight the criteria that the role actually depends on.
- Establishes visual hierarchy so the eye lands where it should
- Works within and extends a design system rather than inventing per screen
- Applies spacing, type and colour with a scale, consistently
- Designs accessibly: contrast, target sizes, focus states, text alternatives
Paste a job description; Cohesyve generates a role-specific assessment and rubric. Ten candidates free, no card.
UI design is where craft is visible and judgement is not: a candidate can produce beautiful screens that are inconsistent, inaccessible, or impossible to build. The skill is visual hierarchy that guides the eye, systems that scale, attention to detail that survives implementation, and taste grounded in reasons. This page covers how to assess UI design for UI designer, product designer and design systems roles: hierarchy and layout, systems thinking, accessibility, and craft.
Why UI Design is worth testing
Weak UI produces interfaces that are hard to scan, inconsistent across screens, and expensive to build because every screen is a special case. Testing with a design-system-constrained exercise shows whether a candidate designs with hierarchy, consistency and accessibility by habit, and that predicts whether the product looks and works like one thing.
What strong UI Design looks like
- Establishes visual hierarchy so the eye lands where it should
- Works within and extends a design system rather than inventing per screen
- Applies spacing, type and colour with a scale, consistently
- Designs accessibly: contrast, target sizes, focus states, text alternatives
- Designs for implementation: components engineers can build once
- Attends to detail — alignment, states, edge cases — without being asked
- Explains aesthetic choices in terms of function
Ways to assess UI Design
Screen design within a system
Provide a small design system — type scale, spacing, components — and a wireframe. Ask for the finished screen with states, using the system. Sixty to ninety minutes.
Pros
Cons
Best for Any UI role.
Hierarchy critique
Show a screen with competing emphasis and inconsistent spacing and ask what they would change.
Pros
Cons
Best for Screening.
AI-scored assessment (e.g. Cohesyve)
Generate a UI design task from the job description — a screen designed within a described system, a hierarchy critique, an accessibility review — with a rubric. Each candidate receives a different variant; the work and the reasoning behind it are scored together.
Pros
Cons
Best for Screening an applicant pool fairly before interview time is spent.
Accessibility review
Show a screen with contrast, target and focus problems and ask them to find and fix.
Pros
Cons
Best for Any level.
Cohesyve
Run a UI Design assessment on your next opening
Cohesyve generates a unique UI Design task per candidate from your job description, with the scoring rubric attached. Questions are different for every applicant, so they cannot be shared or looked up.
What to test
Hierarchy and layout
Whether the eye is guided.
Systems
Whether design scales.
Accessibility
Whether everyone can use it.
Craft and implementation
Whether it survives building.
Sample UI Design questions
What is visual hierarchy, and how do you create it?
EntryLook for Guiding attention in order of importance; size, weight, colour, space, position; restraint.
Two buttons on a screen both look primary. What is the problem?
EntryLook for Competing emphasis confuses the next action; one primary, the rest secondary.
A screen needs a component the system does not have. What do you do?
MidLook for Check whether an existing one serves, extend consistently if not, document it, avoid one-offs.
What accessibility checks do you run on every screen?
MidLook for Contrast, target sizes, focus order and states, text alternatives, not relying on colour alone.
Engineers say your designs are hard to build. What might be wrong?
SeniorLook for Special cases per screen, undefined states, ambiguous spacing; design as components with specs.
Red flags
- Every screen is a new design
- Contrast failures
- Missing states
- Cannot explain a visual choice functionally
- Ignores the system
Scoring rubric
| Criterion | Weight | What strong looks like |
|---|---|---|
| Hierarchy | 30% | The eye goes where it should. |
| System discipline | 25% | Consistent; extends rather than invents. |
| Accessibility | 20% | By habit. |
| Craft | 25% | Detailed, complete, buildable. |
Mistakes hiring teams make
- Judging on aesthetics alone
- Not providing a system to work within
- Skipping accessibility
- Ignoring states
- Assuming UX skill covers UI craft
Roles that need UI Design
Common questions
Should I test in a specific tool?
Let candidates use what they know unless the role is locked to one. Hierarchy, systems and accessibility are tool-independent.
What is the best single UI question?
Show two competing primary buttons and ask what is wrong. Hierarchy judgement shows immediately.
How long should a UI assessment take?
Sixty to ninety minutes for a screen within a system; twenty for a critique.
How do I assess taste fairly?
Score reasoning. A choice explained in terms of function is taste with judgement; a choice that cannot be explained is preference.
Cohesyve · Skill assessments for hiring
Test UI Design before the first interview
Generate a role-specific UI Design assessment from your job description and see who can do the work before you spend interview time on them.
1,500+
assessments completed
50%
faster time-to-hire
90%
completion rate
5 min
from JD to assessment
No credit card · 10 free candidates · Plans sized to your hiring volume
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