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.
HardTechnical
0 practiced
How would you define SLIs & SLOs for micro-interactions (e.g., a 'like' button) where the UI must respond instantly but backend processing may be eventual? Propose measurement, error definitions, and error-budget handling that align frontend UX expectations with backend consistency models.
EasyTechnical
0 practiced
Differentiate monitoring and observability in the context of user experience for a web product. Give concrete examples of metrics, logs, and traces you would rely on to runpost-incident analysis for a UX regression and explain how they complement each other.
MediumTechnical
0 practiced
You need to instrument a new SPA feature so that it's possible to link a specific user interaction (e.g., clicking a promo banner) to a backend trace. Describe the correlation identifiers, propagation strategy (headers/IDs), and how to ensure this linkage is reliable across retries, service workers, and queued background syncs.
MediumTechnical
0 practiced
You're responsible for setting SLOs for a mobile app where perceived latency is influenced by both backend API performance and frontend rendering. Describe a robust SLO and measurement strategy that fairly attributes responsibility between frontend and backend teams and supports incident action.
HardTechnical
0 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.
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