Hire UI/UX Designers Who Design for Real Users

How to vet a UI/UX designer

A portfolio full of beautiful screens is not enough. Ask designers to walk through one project from problem to outcome: what research they did, which options they explored, why they chose the final direction and how they measured whether it worked. Strong UX design shows in that reasoning, while weak portfolios jump straight to polished visuals with no explanation.

Check how they work with constraints and developers. Good designers understand accessibility, responsive behavior, edge cases such as empty and error states, and how their designs will be built. Experience creating or maintaining a design system shows they think in reusable components rather than one-off screens that drift apart over time.

Collaboration matters as much as craft. Designers need to present work clearly, accept critique, negotiate scope with product owners and support developers during implementation, often across time zones and in written form. Ask for an example of a disagreement and how it was resolved.

• Case studies that explain research, decisions and outcomes.
• Attention to accessibility, states and edge cases.
• Experience with design systems and components.
• Comfort testing designs with real users.
• Clear communication with developers and stakeholders.
• Familiarity with Figma components, variants and auto layout.

Interview questions we use for UI/UX designers

We ask designers to describe real decisions and to critique an existing interface live. That exercise reveals how they think about users, priorities and trade-offs better than any portfolio review, and it shows how they communicate under light pressure. We also review how they present work.

Good answers ground decisions in evidence, such as research findings, analytics or usability test results, and acknowledge constraints like budget, timelines and technology. We look for designers who simplify, question requirements respectfully and care about how the product works after launch. Honest reflection on a past mistake is a good sign.

• Walk us through a design decision you changed after user testing.
• How would you improve the checkout flow of this app, and how would you validate it?
• How do you design for empty, loading and error states?
• How do you make sure a design meets accessibility requirements?
• How do you hand off designs so developers build them accurately?
• How do you handle stakeholder feedback that conflicts with user research?
• Which metrics would you track to judge whether a redesign succeeded?

Onboarding a designer in the first two weeks

In week one, the designer studies the product, existing research, analytics and support tickets, and meets product owners and developers. They audit the current interface for inconsistencies and usability problems, review the component library if one exists and share a short summary of observations and quick wins.

In week two, they take on a scoped design task, such as improving one flow, and test it with a few users or internal stakeholders before handing it to developers. Our UI/UX design services cover larger engagements that combine research, design systems and product design.