NetflixSystem Design·60 minMembers
Ads Audience Targeting / Custom Audience System
Members only
Design a system where advertisers upload first-party user lists (emails / phones / device IDs), match them to internal users, package them with AND/OR/NOT rules, and answer membership checks in under ...
SWE
Infra Eng
ads
caching
redis
scaling
schema-design
distributed-systems
idempotency
hard
Frequency
Single report
Last asked
2026-01-24
Stage
onsite-system-design · onsite-deep-dive
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