Leon Kioko
Trading Technology Engineer
Dubai, UAE · +971 52 616 7712 · leon@tradefiti.com · linkedin.com/in/leonkioko · github.com/Bileonaire
Summary
Trading-technology engineer who builds the platforms and trades them.
Expert in MQL5 and MQL4 — automated Expert Advisors, custom indicators, and scripts on MetaTrader 5 and 4. Live MT5 execution infrastructure, TradingView trading terminals, Python research and backtesting with statistical rigor, and production fintech with live brokerage integrations.
Core Stack
- ▸MQL5 & MQL4 — expert (Expert Advisors, custom indicators, automated execution)
- ▸MetaTrader 5 / MetaTrader 4 — live execution, gateways, position sizing
- ▸Python (pandas, numpy, FastAPI, MetaTrader5)
- ▸TypeScript / React 19 / Next.js 16 / React Native (Expo)
- ▸TradingView Advanced Charts; real-time WebSockets; Dukascopy tick data
- ▸Convex, Clerk, Docker, Tailscale
Selected Systems
MT5 Execution Infrastructure
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.
MQL5 ·Python ·MT5 ·FastAPI ·asyncio WS ·Docker ·Tailscale
Edge Research Engine
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.
Python ·pandas / numpy ·pyarrow ·pytest
Liquidators — Systematic Strategy
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.
MQL5 / MQL4 ·Python ·FastAPI ·Pine Script ·MT5
tf-finale — Trading Terminal
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).
React 19 ·Electron ·TradingView ·Convex ·Python
Trading Journal & Analytics
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.
Next.js 16 ·TradingView ·Python FastAPI ·MT5
Eltrich Prime — Investment Platform
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.
Expo / RN ·Convex ·IRESS ·Clerk
CertyPay — Payments & Ticketing Gateway
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.
Next.js ·Convex ·Clerk ·Payments ·QR
On the Desk
- 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 stated — by design.
Experience
Tradefiti — Founder & Trading-Technology Engineer
Trading platforms, MQL5/MQL4 Expert Advisors, MT5 execution infrastructure, and ICT research & backtesting.
Autherise / CapEdge — Senior Software Engineer
Multi-tenant fintech / regtech compliance platform at scale.
Eltrich Prime — Technology Partner
Production investment platform with a live brokerage (IRESS) integration.
CertyPay — Co-founder
Payments & event-ticketing gateway — payment collection, reconciliation, and QR gate verification.
Scope Markets — Creative & Motion Graphics Executive
Brokerage-industry exposure inside a regulated markets business.
Andela — Software Engineer
Engineering foundation on production teams.