Product design question
What would be your product strategy if Jeff Bezos would ask you to develop a contactless grocery store?
- Amazon
- Product design
- Hard
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What this question tests
Product strategy for a new hardware and software retail format, weighing user convenience against implementation cost and staffing impact.
How to approach it
- Clarify scope: is this a new store format like Amazon Go's just-walk-out model, or contactless checkout added to existing Whole Foods stores.
- Identify users: shoppers who want to grab items quickly without waiting in checkout lines, especially for small, frequent purchases.
- Name the pain point: checkout lines are the single biggest friction point in physical grocery shopping, especially for small basket trips.
- Propose the solution: camera and sensor based tracking (similar to Amazon's own Just Walk Out technology) that charges the shopper's account automatically on exit.
- Prioritize a phased rollout, starting with small format stores for convenience trips, since sensor accuracy and cost are easier to manage at smaller scale.
- Define success as reduced average time in store and reduced checkout related complaints, while monitoring shrinkage (theft or tracking errors) as a guardrail.
What a strong answer includes
- Builds explicitly on Amazon's real existing technology, Just Walk Out, rather than inventing an unrelated concept from scratch.
- Sequences rollout by store size, small format first, showing awareness that sensor fidelity and cost scale non-linearly with store size.
- Names shrinkage as an explicit guardrail metric, since contactless tracking errors directly cost the business money.
Common mistakes
- Ignoring the real cost and complexity of sensor and camera infrastructure needed to make this reliable.
- Not addressing what happens to store staff roles when checkout is automated.
Likely follow-up questions
- How would you handle tracking errors that overcharge or undercharge a customer?
- How would this affect staffing needs in stores that adopt it?
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Learn the skill behind it
Chapters of the AI PM course that teach what this question tests.
- Chapter 4: Discovery and strategy for AI products
- Chapter 7: AI UX and human oversight: design for a system that is wrong sometimes
- Chapter 14: Get the job: the AI PM interview loop