A UI designer is hired for visual systems and component craft, so ask for the working Figma file rather than flat images. Inspect layer structure, auto-layout, variants and token discipline. Run a short elevation exercise on an existing screen, review typography and spacing choices with someone senior, and confirm engineers can build the handoff without guessing.
Visual talent is easy to spot and easy to reach, because this discipline publishes. Dribbble, Behance, Awwwards and Figma Community files show finished craft in seconds, and the designers posting component kits or icon sets are demonstrating system thinking for free. Agency and brand-studio alumni are a strong seam: agency pace forces speed, breadth and pixel discipline that in-house-only backgrounds sometimes lack. Freelancers who have run their own client roster often convert well to a first in-house design hire. Marketplace template authors and design-system contributors are worth approaching directly, since their public files reveal build quality before a single call. Advertise where craft people already look, and give the [careers page](/careers-page-builder) real screenshots of the product they would be improving.
Show the interface. This discipline decides whether to apply by looking, so a posting with product screenshots and a note on brand direction outperforms three paragraphs about culture. State plainly what they inherit: an existing design system to extend, a brand book to respect, or a blank canvas. Say which platforms matter, because mobile-native detail differs from responsive web work. Mention whether motion, illustration or marketing pages are in scope, since those attract different people. Name the design tooling and the engineering stack so nobody discovers the constraints late in a final round. Say who approves visual direction, because an unnamed approver is the detail experienced candidates worry about most. Pull the responsibilities list from the [UI designer job description outline](/job-descriptions/ui-designer) and keep the requirements honest rather than aspirational.
Request the editable file, not a PDF export. Open it and check the things that decide whether this person will help or hinder your team: are components built with sensible variants, is auto-layout used properly, do spacing and type follow a scale, are colors tokens rather than one-off hex values, and are layers named by a human. Then look for range: dense data views, forms, empty states and error handling separate real interface designers from people who make attractive marketing screens. Check contrast ratios and touch targets yourself. A candidate whose file is tidy and whose states are complete will cost your engineers far less time than one whose exports merely look good in a portfolio grid.
Three focused stages beat a long panel. First, a file walkthrough where they screen-share and rebuild the reasoning behind one component set. Second, an elevation exercise: give them one mediocre screen from your product with the brand constraints and two hours, paid, then review the result together and ask why each decision was made. Third, a reverse critique where they pick apart your existing interface in front of you, which shows both taste and diplomacy. Add a short handoff conversation with a front-end engineer to check that specs, tokens and states arrive in a buildable form. Draw prompts from a shared [UI designer interview question set](/interview-questions/ui-designer) so every panelist judges the same things.
Understand who you are competing with. Skilled interface designers can freelance profitably and often weigh an offer against client work they already enjoy, so salary alone rarely decides it. What moves them is whether the work ships intact, whether they own the design system, and whether anyone in the company cares about detail. Show a shipped screen that still matches its original design, which is rarer than most teams admit. Introduce them to the engineer who implements their work and let the two talk without a hiring manager in the room. Give feedback within a day of each stage, because craft-led candidates read a slow process as evidence that quality is not a priority here. Keeping every conversation in one [hiring platform](/hiring-software) stops feedback stalling in inboxes.
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