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

SeniorPrefer not to say
Jun 2026

Summary

Google product design interview, one question about building an app recommendation system for mobile. Pretty open-ended, which I wasn't fully prepared for.

Questions Asked (1)

Q1

How would you design an app suggestion system for smartphones?

Product Sense & IdeationSystem DesignProduct Strategy
Author's notes

I started with user context, like time of day and usage patterns, which felt right, but I rambled for a while before getting to any concrete product structure.

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AI HintsAI Generated

Suggested Approach

Start by clarifying the goal and scope of the suggestion system, then segment users and use cases to identify key needs. Propose a data-driven solution that balances personalization, context-awareness, and user control, and define success metrics to evaluate its impact.

Pro tip: Emphasize privacy and transparency as core design principles, and propose a feedback loop that lets users refine suggestions, showing you understand Google's user-first and data-responsible approach.

1. Clarify Goals and Scope

Ask clarifying questions to understand what 'app suggestion' means: is it for app discovery, re-engagement, or task completion? Define the target platform (Android) and success criteria.

2. Understand Users and Context

Identify user segments (e.g., by demographics, usage patterns) and key contexts (time, location, activity) where suggestions are most valuable. Map user needs and pain points.

3. Design the Solution

Propose a system that uses on-device signals (usage history, time, location) and optionally cloud data to generate personalized, context-aware suggestions. Include UI/UX considerations for how suggestions are presented.

4. Address Privacy and Control

Explain how user data is protected (e.g., on-device processing, anonymization) and give users control over what data is used and how suggestions appear.

5. Define Metrics and Iterate

Outline success metrics (e.g., suggestion acceptance rate, user engagement, retention) and a plan for A/B testing and continuous improvement based on feedback.

Key Points to Mention

  • Personalization based on user behavior and preferences
  • Context-awareness (time, location, activity)
  • Privacy-preserving techniques (on-device ML, differential privacy)
  • User control and transparency (opt-in, easy adjustments)
  • Success metrics (CTR, acceptance rate, user satisfaction)
  • Feedback loops for continuous improvement

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