Keisho Yoshida

MQL4 / MQL5 developer from Japan | Expert Advisors, indicators, MT4-to-MT5 conversion

I build trading tools for MetaTrader 4 and 5, with a focus on clean code and verified behaviour.

What I do
- Expert Advisors from your strategy rules (entries, exits, ATR-based SL/TP, break-even, trailing, partial close, risk-% lot sizing)
- Custom indicators: signals, multi-timeframe filters, channels, zones, alerts and on-chart panels
- MT4 to MT5 conversion using modern MQL5 handles and CopyBuffer
- Prop-firm risk tools: daily loss and max drawdown guards, auto close-all and trading lock
- Notifications: push, email, Telegram, Discord
- Backtesting and verification: tick / M1 data, Python cross-checks, Monte Carlo drawdown analysis

How I work
1. I confirm the spec with you before writing code and ask about anything unclear
2. I test in the Strategy Tester (and in Python when useful) before delivery
3. You receive commented .mq5/.mq4 source code and compiled files
4. Bugs that do not match the agreed spec are fixed for free

Background
- 16 years at a major medical-device manufacturer (R&D engineer for 9 years, then development procurement)
- Representative of Prime Management LLC (Japan)
- Hundreds of EAs, indicators and test scripts built for my own trading and for clients

Languages: English, Japanese

Charts & Ideen