Arnold Holm / Perfil
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Public proof
This profile includes five published MT5 products and four official open-source CodeBase diagnostics. The newest is MT5 EA Acceptance Harness (#76039): a non-trading script with eight deterministic entry-state fixtures, 0-error/0-warning compilation and an isolated 8/8 MT5 runtime pass. MT5 Cash Risk Probe (#75981) provides bounded read-only cash-risk sizing. MT5 Broker Environment Report (#75871) captures non-sensitive broker/symbol constraints; MT5 Order Preflight (#75874) checks a hypothetical order against volume, tick-size, stop-distance and filling rules. Other public work includes a multi-symbol wick scanner, risk and spread monitors, an RSI multi-timeframe dashboard and a one-click trade panel.
Services
- One reproducible MQL4/MQL5 bug fix or bounded modification
- Custom MT4/MT5 EAs from written rules
- Indicators, dashboards, alerts and trade managers
- Authorized Pine Script to MT5 conversion
- Risk sizing, daily limits, break-even, partial-close and trailing logic
- Strategy formalization and acceptance-test specifications
Process
1. Freeze platform/build, entry, exit, risk, timing and edge cases.
2. Approve a short scope with should-happen and should-not-happen examples.
3. Implement and test against that behavior.
4. Deliver editable source, compiled build, documented inputs and setup notes.
Entry pricing
- Small bug or bounded modification: 30-80 EUR
- Simple indicator or trade-management component: 70-160 EUR
- Simple custom EA or conversion: 150-300 EUR
- Multi-symbol, multi-timeframe or infrastructure work: fixed quote after specification
I do not guarantee profit, returns, drawdown or prop-firm results. I implement the approved behavior transparently, work only with legitimately owned editable source and never decompile protected EX4/EX5 files. Send the platform, source or written rules, symbol/timeframe and one positive plus one negative example for a bounded price and timeline.
1. Day boundary: broker-server date or a named timezone.
2. Reference: start-of-day balance, start-of-day equity, or intraday equity high-water.
3. P/L: realized only or realized plus current floating result.
4. Restart behavior: reconstruct the reference from deal history or persist the first valid observation and disclose the limitation.
For a high-water definition, the testable formula is DrawdownAmount = max(0, PeakEquity - CurrentEquity), and DrawdownPct = 100 * DrawdownAmount / PeakEquity with a zero guard. The peak must only move upward during the selected day and must survive chart reloads and terminal restarts.
Useful acceptance cases are more important than a pretty panel: one realized win/loss, one open position, one threshold crossing without duplicate alerts, one recovery and recross, and one restart. If two dashboards use different choices above, both can compile cleanly while reporting different numbers.
1. Signal timing: current tick, current candle, or last closed candle? Multi-timeframe rules must state which bar is final.
2. Position model: one position, pyramiding, hedging or netting? Define symbol, direction, Magic Number and manual-trade filters.
3. Risk units: fixed lots, percent risk, money, points or ATR? Define rounding, minimum volume and what happens when a stop is invalid.
4. Broker behavior: digits, stop/freeze levels, filling mode, spread limits, retry rules and trading-session boundaries.
5. Acceptance examples: provide at least one should-trade case, one should-not-trade case and the expected SL/TP calculation.
A phrase such as “enter when trend is strong” cannot be tested. A rule such as “after the H1 candle closes above EMA 50, enter on the next tick only if spread is below X points and no matching position exists” can be implemented and verified.
Freezing these details before development prevents most scope disputes and makes backtests reproducible. This same checklist works for indicators, dashboards, alerts and Pine-to-MT5 conversions.
For an accurate quote, send the platform, editable source or written rules, symbol/timeframe, current versus expected behavior and chart examples.
I work specification-first and deliver source code, documented inputs and a verification checklist. I do not decompile protected files or promise trading results.
- one reproducible EA or indicator bug
- one bounded feature such as risk sizing, break-even, partial close or a session filter
- one simple MT5 EA from explicit entry and exit rules
- one TradingView/Pine Script behavior map or MT5 conversion
The fastest way to get an accurate quote is to provide the platform, editable source or written rules, symbol/timeframe, current versus expected behavior and one or two chart examples.
I work specification-first and deliver source code, documented inputs and a verification checklist. I do not decompile protected files and do not promise profit, returns or prop-firm results.
My profile contains five published MT5 products and several public CodeBase tools that show the type of dashboards, risk controls, indicators and trade management I build.
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