Design Global Metrics Monitoring and Real-Time Alerting
Company: Zscaler
Role: Software Engineer
Category: System Design
Difficulty: medium
Interview Round: Onsite
Overview: Design global metrics monitoring and real-time alerting for a large microservice estate across multiple regions. Candidates must account for metric identity, cardinality control, regional ingestion, time-series storage, dashboards, late and missing data, stateful rules, anomaly evaluation, deduplicated notifications, and self-monitoring.