I am looking for an experienced MQL4 + Python Machine Learning developer to build a multi-asset signal system for 5-minute binary options trading using real (non-OTC) market data. 1. SYSTEM ARCHITECTURE: - Python AI Backend: A Graph Neural Network (PyTorch Geometric) + PPO (Stable-Baselines3) model analyzing 6-8 correlated pairs simultaneously (EURUSD, GBPUSD, USDJPY, USDCHF, AUDUSD, USDCAD, XAUUSD, DXY) on the M1