Abderrahmen K.

I build production trading systems: MT4/MT5 Expert Advisors (MQL4/MQL5), cross-platform trade copiers, prop-firm risk engines, and EA licensing. Founder of HeptaCopier, a live multi-platform copier (MT4/MT5, cTrader, NinjaTrader 8, Quantower). WHAT I BUILD - Expert Advisors from your exact rules: entries, risk, sessions, prop-firm limits (daily loss, max drawdown, equity locks) - Trade copiers and execution infrastructure: sub-second mirroring, netting vs hedging handling, partial-close accuracy - Platform ports: TradingView (Pine Script) to MT5/MT4, MT4 to MT5, MT5 to NinjaTrader 8, cTrader, Quantower - Broker and data integrations: Interactive Brokers, REST/WebSocket APIs, Python bridges - EA licensing and distribution: account locking, expiry, online license control - Backtest infrastructure: tick-data testing, walk-forward analysis, honest reporting - AI training and LLM evaluation for finance: model evaluation, financial-modeling datasets (enterprise Talent Store contract and Microsoft research studies via Upwork) HOW I WORK 1. Written spec first: entries, exits, risk rules, and "done" criteria in your words 2. Milestones with demo-account verification before anything touches live capital 3. Clean, documented source code: you own what you pay for 4. 30 days of post-delivery support on the agreed scope WHY TRADERS PICK ME - 45 completed jobs on Upwork across MT4/MT5, NinjaTrader 8, cTrader and Pine Script - I run my own product in production: HeptaCopier executes live client capital across 5 platforms daily - Prop-firm reality baked in: the same daily-loss guards, drawdown locks and consistency rules the firms enforce - I do not build martingale or unsound grid systems; every build is mathematically defensible - C1-certified English, GMT+1: full EU overlap, afternoon US overlap Whether you are a funded trader, a prop firm, a broker or a signal business: send me your strategy rules or the system that needs fixing, and I will reply with a written plan, a clear quote, and the first milestone.