I want a single, well-structured codebase that can trade automatically on Binance, ByBit and MEXC through their official APIs. The bot has to read and write securely-stored keys, place, amend and cancel orders in real time, and allow me to switch each exchange on or off without touching the code. Robust back-testing is essential. I need to drop in either .CSV or .OHLV files and test any combination of 1 m, 15 m, 30 m, 1 h, 4 h and 1 d charts—individually or mixed—then see equity curves, drawdown, and basic trade analytics before going live. The live engine must let me define entry/exit rules, leverage and size adjustments from the full indicator set below and keep them configurable (YAML/JSON or similar is fine). • EMA crosses • RSI (user-set period) • ATR (user-set period) for stop sizing • ATR-20 on 1 h bars for “gusty-day” size reduction • Funding rate filters (multi-time-frame) • Open-interest Δ on the 1 h aggregation from 5 m series • Perp–spot basis premium • Order-book imbalance (top-10 bids vs. asks) • Last-bar price-change % • Bollinger Bands • MACD • VWAP • Simple moving averages • Pure-volume metrics such as OBV/MFI Key expectations 1. Modular indicator engine so I can toggle or combine conditions without rewriting the strategy. 2. Position-sizing logic that adjusts leverage or contract size whenever a chosen indicator meets my thresholds. 3. Accurate latency-handled execution; no double fills, safe reconnection after network drops. 4. Clear logging plus an HTML/CLI dashboard summarising current positions, P&L and active signals. 5. Fully commented source code, a brief setup guide and at least two sample strategies demonstrating both back-testing and live trading. Delivery is complete when I can: • Run a back-test on historical files of my choice; • Switch to paper mode and see orders fire in a testnet; • Push the same config to live and watch real trades execute correctly on all three exchanges.