Most trading shops buy their stack and rent their edge. We took the opposite route.
Every layer — the historical data store, the candle engine, the indicator library, the
strategy builder, the optimizer, the validation pipeline, the portfolio allocator and the
exchange executers — is written in house, in TypeScript, and tested like production
software.
That control is the edge. When a strategy behaves oddly in production, we can read the
exact line of code that produced the signal, replay the exact candles that produced the
trade, and reproduce the result bit for bit. Nothing is a black box we cannot open.