Live tracking of internal metrics with WebSocket integration and beautiful charting.
Internal teams were making decisions on stale data due to 24-hour ETL batch jobs. Operating at high volume required real-time insights without pulling down the primary database.
I engineered a lightweight telemetry ingest server using Express.js and Socket.io. The frontend uses highly optimized canvas-based charting libraries pulling streamed state over WebSocket connections, allowing the dashboard to update thousands of datapoints a second flawlessly.