Jonathan C.

Most trading developers just code what you ask. I tell you if it actually works first. I combine hands-on trading experience with production-grade engineering. I trade futures on prop firm accounts and live, so I understand drawdown rules, breach risk, and what makes a strategy survive live markets — not just backtest well. What I deliver: → NinjaTrader 8 strategies & indicators (C#) — from custom logic to full automation → Pine Script strategies for TradingView — with proper backtesting and alert automation → MQL5 strategies & EAs for MetaTrader 5 — custom indicators, automation, optimization → ML/AI signal systems — ONNX models, feature engineering, walk-forward validation → Strategy research — backtest, optimization, MFE/MAE analysis, walk-forward testing → Python trading infrastructure — data pipelines, execution, broker APIs Recent client results: - Built an ML-powered trading system processing live NQ futures with AI signal prediction (NinjaTrader + Python + ONNX) - Developed and validated a session-based ORB strategy across 4 years of futures data with walk-forward analysis - Created a prop firm account management system with real-time breach protection and Telegram alerts - Delivered Pine Script strategies with webhook automation for futures execution I work fixed-price. I scope clearly, deliver fast, and communicat directly. Send me your strategy idea, current setup, or problem — I'll tell you the fastest path forward.