Custom EA development

Your idea.
Turned into
Code.

I build custom Expert Advisors and indicators from scratch — exactly the way you need them. MT4, MT5, cTrader. Every idea taken seriously. Every robot stress-tested before delivery.

✈ Message on Telegram ✉ Send an email
BR
Botond Ratonyi
Founder · NomadTradingFX · ErgodicLabs
MQL4 MQL5 C# / cAlgo MT4 MT5 cTrader Monte Carlo Walk Forward Prop Firms
100+
Jobs done
6+
Yrs developing
68
Countries
✈
Telegram — fastest response
@BRobotTrader
 ✉
Email
nomadforexrobots@gmail.com
Scope of work

What I build

From simple indicator alerts to fully automated multi-currency portfolio systems with risk management, Monte Carlo validation, and prop firm compliance.

🤖
Expert Advisors (EAs)
Fully automated trading robots. Trend following, scalping, breakout, pattern recognition, grid-free. Any strategy you can describe, I can code.
MT4MT5cTraderAny strategy
📊
Custom Indicators
Technical indicators built from your exact specifications. Visual overlays, dashboard panels, signal alerts, push notifications to your phone.
MT4MT5cTraderMobile alerts
🔄
EA Conversion
Already have a strategy on one platform? I convert between MT4 ↔ MT5 ↔ cTrader without losing logic or performance characteristics.
MT4→MT5MT5→cTraderFull conversion
⚡
Strategy Optimisation
Existing EA underperforming? I audit the logic, identify weaknesses, add filters, and optimise parameters using proper walk-forward methodology.
AuditFiltersWalk Forward
🛡️
Prop Firm Adaptation
Convert any EA to pass FTMO, MyForexFunds, or other prop firm rules. Drawdown guards, news filters, session limits, kill switches built in.
FTMOMFFDaily DD limit
📈
Backtesting & Validation
Don't just trust a backtest. I run Monte Carlo simulation, forward testing, and multi-pair portfolio analysis to verify real edge exists.
Monte CarloForward testPortfolio
How it works

From idea to running robot

A clear 4-step process. No ghosting. No vague deadlines. You know where your project is at every stage.

01
💬
Discovery call
Tell me your strategy idea on Telegram or email. I ask the right questions to understand exactly what you need — entry logic, risk rules, platforms, timeline.
02
📋
Spec & quote
I send a written specification and fixed price quote. You approve before any code is written. No surprises.
03
⚙️
Build & test
I code the EA, backtest on high-quality tick data, run Monte Carlo simulation, and send you progress updates throughout.
04
🚀
Delivery & support
You receive full source code, set files, documentation, and video walkthrough. I stay available on Telegram for follow-up questions.
Platforms & languages

Where I work

⬛
MetaTrader 4
MQL4 · EA + Indicator
Largest retail broker ecosystem. Maximum compatibility.
🟦
MetaTrader 5
MQL5 · EA + Indicator
Modern architecture. Multi-asset. Strategy tester with tick data.
🟩
cTrader
C# / cAlgo · cBot + Indicator
ECN-native. Transparent execution. IC Markets preferred platform.
🔧
Multi-platform
MT4 + MT5 + cTrader
One strategy across all three platforms. Unified logic, optimised per platform.
Track record

100+ jobs. Real clients.

Delivered for independent traders, prop firms, signal providers, and institutional clients across 68 countries. A selection of completed projects:

XAUUSD Scalper for prop firm
MQL5 · FTMO compliant · Daily DD guard
Multi-currency trend system
MT4+MT5 · 8 pairs · Portfolio correlation filter
Pattern recognition EA
MQL5 · 14 candlestick patterns · Adaptive SL
cTrader breakout bot
C# · London/NY session · News filter
Indicator dashboard suite
MT5 · 9 indicators · Push notifications
Legacy EA modernisation
MT4→MT5 conversion · Logic audit · Optimisation
Signal copier tool
MT5 · Master/slave architecture · Lot scaling
Volatility-based entry system
MQL4 · ATR adaptive · Trailing stop logic
Prop firm EA package
3 EAs · FTMO/MFF rules · Kill switch + reporting
Investment

Transparent pricing

Fixed-price quotes. No hourly billing surprises. Complexity determines cost — simple strategies start low, sophisticated systems scale accordingly.

Simple
$150 – $400
per project
Basic EA or indicator. One entry condition, one exit, basic risk management. Delivered in 3–5 days.
  • ✓Single strategy logic
  • ✓MT4 or MT5
  • ✓Set files included
  • ✓Basic documentation
  • ✓1 revision round
  • ✓Telegram support
Professional
$400 – $900
per project
Multi-condition EA with filters, portfolio logic, or custom indicator suite. Full Monte Carlo validation.
  • ✓Complex multi-condition logic
  • ✓MT4 + MT5 or cTrader
  • ✓Monte Carlo validation report
  • ✓Full documentation + video
  • ✓5 revision rounds
  • ✓Telegram support
Enterprise
$900+
per project
Full trading system — multiple EAs, custom indicator dashboard, prop firm adaptation, and ongoing support retainer included.
  • ✓Full system architecture
  • ✓All platforms
  • ✓Prop firm compliance built-in
  • ✓Video walkthrough + manual
  • ✓5 revision rounds
  • ✓Priority Telegram access

All prices are estimates. Final quote provided after understanding your specific requirements. Message on Telegram to start.

★ COMPANIES & WHITE LABEL
Custom quote
scope-dependent

For brokers, prop firms, signal providers, and software companies that need proprietary trading tools built or licensed under their own brand. Full NDA, IP transfer, and white-label agreements available.

  • ★
    White-label EA or indicator suite
    Your brand, my code. Full IP transfer available.
  • ★
    Proprietary strategy development
    Build and own a trading system exclusive to your firm.
  • ★
    Broker / prop firm tool integration
    Custom risk engines, reporting dashboards, client-facing tools.
  • ★
    Full NDA + IP ownership contract
    Legal framework for commercial use from day one.
  • ★
    Ongoing maintenance retainer
    Monthly support, updates, and feature additions.
  • ★
    Multi-developer team handoff
    Clean, documented code ready for your in-house team.
Developer answers personally · No middlemen

Let's build
your robot.

Describe your strategy. I'll tell you if it's buildable, how long it takes, and what it costs. Usually within a few hours.

✈
Telegram — fastest
@BRobotTrader
 ✉
Email
nomadforexrobots@gmail.com
Typical response time: under 4 hours · Available Mon–Sat