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Google·Product Manager·Onsite - Product Sense / Strategy·Intermediate

Intermediate
Jun 2026

Summary

Google PM interview with a single product design question about a vending machine in a hotel lobby. Pretty open-ended, which I wasn't quite prepared for.

Questions Asked (1)

Q1

How would you design a vending machine specifically for a hotel lobby?

Product Sense & IdeationProduct StrategyAdaptability & Ambiguity
Author's notes

I jumped straight into features and totally skipped user segmentation, which I regretted about two minutes in.

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AI HintsAI Generated

Suggested Approach

Start by clarifying the goal and constraints of the vending machine in a hotel lobby, then segment users and identify their needs. Brainstorm features that address those needs, prioritize based on impact and feasibility, and define success metrics.

Pro tip: Focus on the unique context of a hotel lobby—guests are often in a hurry, may have different cultural preferences, and expect premium or convenience items. Consider how the vending machine can enhance the hotel's brand and guest experience, not just dispense products.

1. Clarify Objectives and Constraints

Ask questions to understand the hotel's goals (e.g., revenue, guest satisfaction), target users (business travelers, tourists), and constraints (space, budget, technology).

2. Define User Personas and Needs

Identify key user segments (e.g., late-night arrivals, business travelers needing essentials) and their pain points or desires (convenience, speed, unique items).

3. Ideate Features and Solutions

Brainstorm features that address user needs, such as 24/7 availability, contactless payment, personalized recommendations, and curated product selections (e.g., travel essentials, local souvenirs).

4. Prioritize and Define MVP

Evaluate features based on impact vs. effort, and propose a minimum viable product that balances user value with technical and cost feasibility.

5. Define Success Metrics and Iterate

Outline metrics like usage rate, average transaction value, and guest satisfaction scores, and suggest a plan for gathering feedback and iterating.

Key Points to Mention

  • User segmentation: business travelers, tourists, families, hotel staff
  • Convenience and speed: 24/7 access, quick transactions, contactless payments
  • Product selection: travel essentials, snacks, local items, premium goods
  • Technology integration: mobile app, loyalty program integration, inventory management
  • Hotel brand alignment: design, ambiance, and product curation that reflects the hotel's image
  • Success metrics: usage, revenue, guest satisfaction, and impact on hotel operations

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.