Case Study: ShiftB — AI-Supervised Professional Trading Platform
Client: SoftAtBest (internal product) Project: Reference Implementation of a Complete Trading Platform
Challenge
After over two decades of building trading infrastructure for clients — market data systems, execution platforms, risk management, professional trading GUIs — SoftAtBest set out to answer a fundamental question: can AI, under expert architectural supervision, produce production-grade trading infrastructure?
The goal was not a demo or prototype, but a complete reference implementation built purely from industry specifications, with no legacy debt and no vendor dependencies.
Approach
SoftAtBest developed a new model for building trading infrastructure:
- Expert architects with decades of production experience define the architecture, quality standards, and design decisions
- Claude Code (Anthropic's AI coding agent) writes the implementation under continuous supervision
- Rust was chosen specifically because its compiler catches entire categories of bugs — data races, use-after-free, missing cases — before they reach expert review
The architect designs. The AI implements. The compiler validates. The expert reviews.
What Was Built
ShiftB covers the complete pipeline from high-frequency data receive to cross-platform trading frontends:
- Market Data — direct exchange and regulatory feeds for U.S. equities, with every protocol parser built directly from exchange specifications
- Real-Time Distribution — binary streaming to any number of clients with per-client state tracking and consolidated views
- Interactive Monitoring — terminal client for real-time market data browsing, system health, and feed diagnostics
- Trading Frontend — cross-platform GUI prototypes from a single business logic core, supporting multiple rendering frameworks
Results
ShiftB demonstrates that agentic engineering — combining decades of domain expertise with AI implementation capability — can produce trading infrastructure that meets professional standards of correctness, performance, and maintainability.
ShiftB is now the foundation for SoftAtBest's trading platform offerings: a proven blueprint ready to be adapted to specific client requirements.
Key Takeaway
The success of ShiftB validates a new approach to building complex financial systems. AI doesn't replace the architect — it amplifies them. With the right supervision model and the right language (Rust), AI can implement production-grade systems code at a pace that would be impossible for a human team of equivalent size.