The Challenge
The client needed a platform capable of handling real-time market data streams, complex order routing, and portfolio analytics — all with sub-100ms latency and 99.99% uptime. Their legacy system was crashing under load and losing user trust.
Our Solution
We redesigned the architecture from the ground up using event-driven microservices, WebSocket-based real-time feeds, and a purpose-built caching layer. The frontend was rebuilt in React with optimistic UI updates so traders never feel lag.
Results
- 10M+ transactions processed daily without downtime
- Latency reduced from 800ms to under 80ms
- User retention increased by 42% in 3 months post-launch
- Zero critical incidents in the first 12 months
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