Pulse Analytics Dashboard

## The Problem The client's existing reporting tool ran nightly batch jobs, meaning product teams were making decisions on data that was up to 24 hours stale. ## What I Built I designed and built **Pulse**, a real-time analytics dashboard from the ground up: - Event ingestion pipeline handling **2M+ events/day** - Streaming aggregations with materialized views in PostgreSQL - Interactive charts with drill-down filtering and saved segments - Role-based access control for multi-team organizations ## Results - Reduced data latency from **24 hours to under 2 seconds** - Cut infrastructure costs by **40%** by replacing three legacy services - Adopted by every product team within the first quarter ## Technical Highlights The hardest part was keeping the dashboard responsive as data volume grew. I solved it with a tiered caching strategy and pre-computed rollups, which kept p95 query time under 120ms even on the largest accounts.