Google design interview: the whiteboard round

The design exercise, the scale-and-inclusion lens Google interviewers listen for, and a worked way to spend 45–60 minutes.

Start practising free →45-minute timer

Google’s UX interview rewards structured thinking at scale. The design exercise — the whiteboard round — hands you a broad prompt and watches how you decompose it, who you design for (including the people usually left out), and how you reason about a product used by billions. It is less about a single clever screen and more about a clear, inclusive path from problem to direction. This page covers the format, what is scored, a realistic prompt, and a way to run the clock.

What the Google design interview looks like

A Google UX loop generally includes a portfolio presentation, an app critique, and one or more design exercises, plus behavioural rounds. The design exercise runs roughly 45 to 60 minutes: you clarify the prompt, frame the problem, explore directions, and sketch a flow while narrating. Google interviewers are trained to probe for breadth (did you consider edge cases and accessibility?) and for structure (can you break a huge problem into a sequence someone can follow?). Expect the prompt to be deliberately open — the framing is yours to do.

What Google is really scoring

Structured decomposition

Breaking a broad, ambiguous prompt into a clear sequence — Google’s single strongest signal. Say your structure before you fill it in.

Inclusive, accessible design

Who is excluded by the obvious solution? Naming accessibility and edge users unprompted reads as Google-caliber judgment.

Thinking at scale

Reasoning about a product with enormous, diverse usage — internationalisation, low-connectivity, and failure modes, not just the happy path.

Clear communication

Narrated reasoning an interviewer can follow, plus responsiveness when they redirect.

A realistic Google prompt

“Redesign the experience of finding your way through a large, unfamiliar airport”

A wayfinding prompt that rewards Google’s instincts: scale (any airport, any traveller), inclusion (low vision, non-native speakers, stress), and a structured path from problem to flow.

0–5

Clarify & scope. Which traveller, which moment (arrival, tight connection), on-device or on-site signage? Constrain out loud and write it down.

5–12

Choose a user & need. Pick one traveller under real pressure — a tight connection with limited English — and state the core need: certainty about where to go next.

12–22

Decompose the journey. Break wayfinding into stages (locate self → choose route → follow → recover if lost). Mark the weakest stage.

22–34

Explore & choose. Sketch a couple of directions, weigh them for the excluded users you named, and commit.

34–45

Flow & measure. Draw the key flow, cover a failure case (wrong turn), and say how you would measure success.

narrate every beat — silence isn’t scored ✦

Common mistakes in the Google interview

No visible structure. Diving into ideas without stating a decomposition first. Google scores the sequence, so make it explicit.

Happy-path only. Designing for the ideal user in ideal conditions. Name low-connectivity, accessibility, and error states without being asked.

Global-but-generic. “It should work for everyone” with no specifics. Pick concrete excluded users and design for them.

Skipping measurement. Ending on a sketch with no success metric. Close with how you would know it worked.

How to prepare for Google

Google’s round rewards a repeatable structure you can run on any prompt. Drill it: set the 45-minute timer, work a broad prompt end to end, and score it with the rubric to check you covered breadth and edge cases. Our guide on clarifying questions helps you frame open prompts the way Google likes, and the challenge library has plenty of broad, systems-y prompts to rehearse on.

Practise a Google-style challenge →

Common questions

How long is the Google UX design exercise?

The whiteboard design exercise usually runs 45 to 60 minutes, including setup and the interviewer’s questions. Rehearse against a 45-minute clock at minimum.

What do Google UX interviewers weight most?

Structured decomposition of an open problem, inclusive and accessible thinking, and the ability to reason about scale — narrated clearly throughout.

Is the Google design exercise on a physical whiteboard?

It varies — virtual loops use a shared digital canvas (e.g. a collaborative board), onsite rounds may use a physical whiteboard. Ask your recruiter which format to expect.

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