Technical Depth & Areas of Specialization Questions
At FAANG companies, designers often have areas of depth or expertise. Discuss yours: e.g., mobile design, design systems, user research, accessibility, interaction design, etc. Show you have informed opinions based on experience and continuous learning.
MediumTechnical
19 practiced
Explain how service-worker strategies (cache-first, network-first, stale-while-revalidate) affect perceived performance and cache coherence for user-facing pages. From an SRE viewpoint, what pitfalls must be avoided when using service workers at scale?
HardTechnical
20 practiced
A popular third-party font CDN experiences a multi-hour outage causing invisible text and layout regressions globally. As the SRE on-call, outline immediate mitigation steps (workarounds to restore readable pages), a short-term patch, and long-term architectural changes to prevent single points of failure for critical design assets.
MediumSystem Design
22 practiced
Design a monitoring and alerting pipeline to collect Core Web Vitals from real users for a product with ~100M monthly active users. Describe collection (RUM), ingestion, aggregation, storage, query layer, sampling strategy, retention, and alerting logic. Discuss cost, privacy, and cardinality trade-offs.
MediumTechnical
24 practiced
Case study: You led the post-incident review (PIR) for a UX regression that caused a 20% drop in conversions. Outline the structure of the PIR focusing on customer impact, timeline, root cause analysis (including data sources), remediation, and long-term action items with owners.
MediumSystem Design
17 practiced
Design a canary deployment system that automatically monitors UX metrics (e.g., p95 LCP, error-rate) and rolls back a canary if the UX impact exceeds configured thresholds. Describe integration with CI/CD, feature flagging, metrics windows, statistical tests, and strategies to avoid false positives.
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