Discovery
- Latency audit across 7 microservices
- Tape-out tracing with eBPF
- Interviews with 18 institutional traders
FinTech · 2024
A trading desk, rebuilt from the metal up.
The challenge
FinEdge's legacy desk was bleeding orders to faster venues. Their 240ms median latency made them uncompetitive on anything under one-second decisioning.
The approach
We rebuilt the order routing stack in Rust over a co-located infrastructure, redesigned the trading interface around a Canvas-rendered tape, and shipped a TypeScript SDK for institutional clients.
By the numbers
0ms
p99 order latency
0%
Latency reduction
0B
Daily volume
0x
Throughput gain
The process
From discovery to launch.
Architecture
- Rust order routing core
- Lock-free order book
- Colocation in 3 financial exchanges
Design System
- Canvas-rendered tape at 144fps
- Keyboard-first interaction model
- Density modes for power users
Engineering
- Order matching in Rust, FIX gateway in C++
- WebSocket binary protocol
- TypeScript SDK with type-safe order primitives
Launch
- Dark-pool parallel run for 6 weeks
- Migration of 1,200 active accounts
- 24/7 trading-floor support window
Order ticket · positions view
TechBinaries didn't just build our product — they challenged our assumptions, improved our roadmap, and shipped faster than any team we've worked with. Exceptional craft.
Sarah ChenCTO, FinEdge
95%
Latency cut
1.2B
Volume
99.99%
Uptime
Outcomes
The numbers settled. The story didn't.
FinEdge's order flow tripled within two quarters of launch. Latency-sensitive funds re-routed business away from competitors. The platform has run without a major incident for 11 months.
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