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Mission Complete

Asteroid Fintech: Real-Time Trading Dashboard

Next.jsTypeScriptWebSocketRedisCanvasTanStack Virtual

The Asteroid

A growing fintech startup was struggling with a legacy dashboard that couldn't handle real-time data updates. Users reported 8-second delays in portfolio updates, leading to poor trading decisions and customer churn.

Deflection Plan

  • 1Architected WebSocket-based real-time data layer
  • 2Implemented optimistic UI updates with reconciliation
  • 3Built virtualized tables handling 10k+ rows
  • 4Created custom charting with Canvas for 60fps performance
  • 5Set up edge caching for static portfolio data

Impact Crater

Data Latency
< 100ms
-98%
Page Load
1.2s
-75%
User Retention
94%
+23%
Support Tickets
12/mo
-67%

Mission Log

Discovery

1 week

Audited existing system and identified bottlenecks

Prototype

1 week

Built WebSocket proof of concept

Build

4 weeks

Full implementation and testing

Launch

1 week

Staged rollout with monitoring

Links

Live Dashboard