Amazon design interview: the whiteboard round

Customer obsession, working backwards, and the Leadership Principles that quietly drive the score — plus a worked prompt.

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Amazon’s design interview looks like other whiteboard rounds but is scored through a distinctive lens: the Leadership Principles, above all customer obsession. The design exercise tests whether you start from a real customer problem, work backwards from their need, and back your choices with reasoning (and, where you can, data). Craft matters, but a beautiful screen that does not obviously serve the customer will not carry the room. This page covers the format, the principles that matter, a realistic prompt, and how to run it.

What the Amazon design interview looks like

An Amazon UX loop pairs a portfolio review with a design exercise and several behavioural rounds built explicitly around the Leadership Principles (expect “tell me about a time…” questions mapped to specific principles). In the design exercise you get a customer problem and roughly 45 minutes to frame it and sketch a direction. Interviewers listen for working backwards — starting from the customer and the desired outcome, not the feature — and for dive deep, where you show you understand the details rather than staying abstract. Weaving a principle in naturally (“to earn trust here…”) lands well when it is genuine.

What Amazon is really scoring

Customer obsession

Every decision traced to a specific customer and their need. This is the load-bearing principle — make the customer the hero of your narration.

Working backwards

Start from the outcome the customer wants and reason back to the design, rather than starting from a feature you like.

Dive deep

Show you understand the mechanics and edge cases, not just the concept. Amazon distrusts hand-waving.

Bias for action & simplicity

A scrappy, shippable v1 that solves the core problem beats an elaborate vision that could not be built.

A realistic Amazon prompt

“Design a way for a first-time customer to trust a third-party seller before they buy”

A trust problem straight from Amazon’s world. It rewards customer obsession (the anxious first-time buyer), working backwards from “confident enough to purchase”, and a simple, shippable direction.

0–5

Clarify & anchor on the customer. Which customer, which product category, what makes them hesitate? Name the customer and their fear on the board.

5–12

Work backwards from the outcome. State the outcome — “confident enough to buy from an unknown seller” — and reason back to what would create that confidence.

12–22

Map the trust gaps. Walk the pre-purchase journey and mark where doubt spikes (unknown seller, unclear returns). Pick the biggest gap.

22–34

Direction & simplicity. Sketch a simple, shippable direction that closes that gap; name what you deliberately leave out of v1.

34–45

Detail & measure. Dive into one detail (how the signal appears at the decision moment) and say how you would measure trust — e.g. conversion for new sellers.

narrate every beat — silence isn’t scored ✦

Common mistakes in the Amazon interview

Feature-first, not customer-first. Opening with a solution instead of the customer’s problem. Amazon reads that as the wrong instinct immediately.

Staying abstract. Never diving into a concrete detail. “Dive deep” means show the mechanics of at least one part.

Over-scoping v1. A grand vision with no shippable core. Bias for action rewards a scrappy, real first step.

Forcing Leadership Principles. Name-dropping principles unnaturally. Weave them in only where they genuinely apply.

How to prepare for Amazon

Prepare on two fronts. For the exercise, run timed reps with the 45-minute timer and grade them on the rubric, forcing yourself to open with the customer every time. For the behavioural rounds, prepare stories mapped to the Leadership Principles — especially customer obsession, dive deep, and bias for action. Frame open prompts using our clarifying-questions guide, and practise commerce and trust prompts from the challenge library.

Practise a Amazon-style challenge →

Common questions

How important are Leadership Principles in the Amazon UX interview?

Central. Behavioural rounds map directly to them, and the design exercise is scored through customer obsession and working backwards. Prepare principle-mapped stories in addition to design practice.

How long is the Amazon design exercise?

The whiteboard design exercise is typically around 45 minutes. Rehearse against a 45-minute clock and practise opening with the customer, not the feature.

Does Amazon expect data in a whiteboard answer?

You will not have real data on the board, but referencing what you would measure — and reasoning as if evidence mattered — signals the “dive deep” and customer-obsession the interview rewards.

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