▸Leon Kioko · Dubai, UAE
“I build the systems and I run the risk.”
Most people pick a side: trade the markets, or build the tooling. I do both.
I have engineered the data ingestion, the strategy logic, the backtester, and the live execution bridge — then traded the result with real risk.
That means I can sit between the desk, the data, and the platform, and speak all three languages.
Deep, hands-on proficiency building automated Expert Advisors, custom indicators, and scripts in MQL5 and MQL4 for MetaTrader 5 and 4.
Live MetaTrader 5 order routing, RPC gateways, and risk-based position sizing.
Real-time streaming over WebSockets; broker UDF feeds and Dukascopy tick archives.
TradingView Advanced Charts, custom datafeeds, and ICT overlays (FVG, order blocks, BOS/CHoCH).
Python walk-forward engines with out-of-sample validation and statistical rigor.
Trade journals, equity curves, prop-firm objective tracking, and risk scoring.
Claude/LLM-assisted analysis and document and data pipelines.
Containerized MetaTrader 5 (Windows Docker) behind a secure API-key RPC gateway with a real-time WebSocket multi-account position-streaming hub over Tailscale; plus a worker-pooled FastAPI MT5 gateway (gateway + account workers + price-pusher) and MQL5 Expert Advisors powering live execution in two platforms.
Python quant research on XAUUSD detecting ICT Fair Value Gaps, validated with chronological out-of-sample testing, bootstrap p-values, Benjamini-Hochberg FDR correction, and a random-entry null control — fed from a live broker API and Dukascopy tick archives.
An ICT / order-flow FX & CFD strategy (liquidity sweeps, FVGs, order blocks, BOS/CHoCH) with a walk-forward backtester sweeping 88×111 stop/exit combinations across multiple pairs, plus MQL5/MQL4 Expert Advisors and a live MT5 execution scanner with risk-based lot sizing and Telegram alerts.
A cross-platform (Electron + web) trading terminal in React 19 / TypeScript: live MT5 execution via a worker-pooled FastAPI gateway, real-time TradingView Advanced Charts streamed through Convex, ICT analytics overlays, a full trade journal, and a risk-scoring engine — plus a no-hindsight Python backtester (57 TDD tests, 480k+ bars).
A Next.js 16 trading-journal and live-execution platform (Clerk + Convex) with TradingView Advanced Charts, a tested Python FastAPI MT5 gateway exposing FVG / order-block / gap analysis, risk-sized order execution, and prop-firm objective tracking.
A production cross-platform retail investment app (Expo + Convex + Clerk, 32-table schema) integrating a live IRESS brokerage API for real-time portfolio net-equity, positions, and trade sync, with multi-currency wallets, a typed financial ledger, and Smile ID KYC.
A payments and event-ticketing gateway — collect, track, and reconcile payments end to end, with QR ticket issuance, gate verification, and payout reconciliation for businesses, events, and organizations.
Also: Autherise — a multi-tenant Bahamas VAT compliance platform (~80-table schema, AI extraction agents) proving fintech delivery at scale — see the full breadth.
Proprietary-capital evaluation
Passed a proprietary trading-capital evaluation.
Methodology
ICT / order-flow / smart-money concepts — applied in real code, not just discretionary calls.
Discipline
Trade journaling, equity-curve analytics, and risk-first position sizing on every system.
// No returns or earnings figures shown — by design.
Trading platforms, MQL5/MQL4 Expert Advisors, MT5 execution infrastructure, and ICT research & backtesting.
Multi-tenant fintech / regtech compliance platform at scale.
Production investment platform with a live brokerage (IRESS) integration.
Payments & event-ticketing gateway — payment collection, reconciliation, and QR gate verification.
Brokerage-industry exposure inside a regulated markets business.
Engineering foundation on production teams.
Also a founder building across software, markets, and media.
See the full picture →Trading desks, prop firms, and trading-infrastructure teams — I read and reply personally.
leon@tradefiti.com+971 52 616 7712