Design streaming mention analytics with search and alerts

Company: Bloomberg

Role: Software Engineer

Category: System Design

Difficulty: hard

Interview Round: Onsite

Quick Answer: This question evaluates system-design competencies such as real-time stream ingestion, stateful stream processing and time-windowed aggregation, high-throughput search indexing, alerting and subscription mechanisms, storage and retention strategy, and trade-offs around scalability, latency, consistency, and cost.