Kohei Takahashi

MQL5 developer focused on verified, test-driven delivery.

I build MetaTrader 5 Expert Advisors, indicators and utilities with an
engineering-first workflow:

- Published on MQL5 Market — 6 products: a news-event risk utility,
event-straddle and post-event breakout EAs, multi-timeframe trend and
market-structure indicators, and a free economic calendar indicator.
All passed MQL5 Market automated validation.

- Test-driven delivery — every order is verified in the Strategy Tester
against the acceptance criteria agreed in the Requirements Specification
before I ask you to review it. I also run positive controls: a
deliberately broken build must fail my checks, so a passing check means
something.

- Non-repainting, proven — for indicators I ship a repaint-probe test
result, not just a claim.

- Offline-safe news logic — I maintain a curated database of 4,100+
scheduled economic events with currency tags, so news filters work in
the Strategy Tester and on live charts without any internet access.

- Deep backtesting — 13 years of M1/tick data infrastructure for
realistic long-horizon validation.

Every delivery includes: a clean compile on the latest MetaEditor build
(0 errors, 0 warnings), a Strategy Tester run matching the agreed
specification, screenshots and report, and a short user guide.

What I don't do: I implement your rules faithfully and verify the
implementation — I do not promise trading results, and I decline orders
whose only specification is "make it profitable".

Skills: MQL5, MQL4, MetaTrader 5, Expert Advisors, custom indicators,
MT4 to MT5 porting, Pine Script conversion, news filters, Strategy Tester
verification, backtesting, risk management, trailing stops,
multi-timeframe analysis, chart panels.

Languages: English / 日本語（ネイティブ）. I reply within 24 hours.

日本語のご依頼も歓迎します。EA・インジケーターの新規開発、MT4→MT5 移植、
既存 EA の修正・検証まで対応します。仕様を数値で固めたうえでストラテジー
テスターで検証し、証拠を添えて納品します。

Grafikler ve Fikirler