← Pinterest Interview Insights
My first instinct was to just say 'put a date picker in onboarding' and move on, which would have been embarrassing.
Start by clarifying the goal: why Pinterest needs birth date (e.g., age-appropriate content, compliance, personalization) and the constraints (privacy, trust). Then walk through a user-centric design that balances friction, accuracy, and privacy, and discuss trade-offs and metrics. End with a phased rollout and iteration plan.
Pro tip: Emphasize that birth date is sensitive data: propose a privacy-first approach (e.g., no public display, minimal collection) and highlight how you'd handle edge cases like underage users and international regulations. This shows maturity beyond just UX.
Ask questions to understand why birth date is needed (compliance, personalization, safety) and any constraints (privacy policies, regional laws). Define success metrics (e.g., completion rate, accuracy, user trust).
Propose a simple, low-friction flow: e.g., ask for birth date during signup with clear rationale, use a date picker with smart defaults, and allow skip if possible. Consider progressive profiling if not critical at signup.
Discuss validation (e.g., age minimum, realistic dates), handling typos, and verification methods (e.g., social login, ID verification for high-risk cases). Plan for underage users (e.g., parental consent or restricted experience).
Explain how you'll protect data: store securely, don't display publicly, allow users to edit/delete, and be transparent about usage. Consider alternatives like age ranges or self-declaration with consequences.
Define metrics to track (completion, accuracy, drop-off, support tickets) and propose A/B tests for different approaches. Plan for global rollout with localization and legal review.
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