Can you build an MT5 EA that complies with prop firm rules?

Yes. We build prop firm-compliant MT5 Expert Advisors regularly for FTMO, FundedNext, MFF, and bespoke prop firms. Tell us your firm's exact evaluation criteria — daily drawdown caps, max loss thresholds, trailing account equity stops, and news filter restrictions — and we will implement them natively in the EA logic.

Can you migrate my MT4 EA to MT5?

Yes. We migrate MT4 Expert Advisors from MQL4 to MQL5 regularly — preserving all trading logic while restructuring the architecture into clean, object-oriented MQL5. This unlocks MT5's enhanced multi-asset capabilities, asynchronous order execution, and multi-threaded backtesting. We run parallel Strategy Tester benchmarks to verify performance parity before handoff.

Does MT5 support multi-currency backtesting and live trading?

Yes. Unlike MT4, MT5 was specifically engineered for multi-symbol trading. A single MT5 Expert Advisor can monitor tick data, compute indicators, and execute orders across dozens of currency pairs, equity indices, and crypto assets simultaneously from one chart — and the MT5 Strategy Tester can backtest the entire portfolio portfolio-wide in a single simulation pass.

Do I get the full source code for my MT5 EA?

Yes — always. Full MQL5 source code ownership (.mq5 source files and .ex5 binaries) is included in every project as standard. No licensing fees, no recurring royalties, no encrypted locks. You own everything we build outright.

How long does MT5 EA development take?

A straightforward single-strategy MT5 Expert Advisor typically takes 5–10 business days. More complex multi-symbol systems, institutional execution engines, or systems requiring distributed MQL5 Cloud Network optimization usually take 3–6 weeks depending on architectural scope.

MT5 Expert Advisor Development

Custom multi-asset trading robots, indicators and institutional execution engines built in MQL5 for MetaTrader 5. Engineered for multi-currency backtesting, distributed Cloud Network optimization, asynchronous execution, and prop firm compliance — delivered with complete source code ownership.

CASE STUDIES

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Trading Systems
delivered

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Years of
experience

THE PLATFORM

Why MetaTrader 5 for algorithmic trading?

MetaTrader 5 is the state-of-the-art multi-asset institutional trading platform designed to replace legacy systems. With native 64-bit architecture, multi-threaded Strategy Tester simulations, and built-in distributed MQL5 Cloud Network computing, MT5 allows quantitative traders to backtest multi-currency portfolios in minutes rather than days.

Our team engineers production-grade MQL5 Expert Advisors, arbitrage engines, asynchronous order routers, and custom prop firm risk monitors. Every system is built to handle real broker conditions — partial fills, asymmetric slippage, requotes, and market depth (Level II) liquidity — delivered with 100% full MQL5 source code ownership.

MT5 development services

Multi-asset robots, asynchronous order execution, and distributed cloud backtesting — every project includes full MQL5 source code.

Multi-Asset Expert Advisors

Full-scale automated strategy development in MQL5. Simultaneous multi-symbol trading, asynchronous order placement, custom risk allocation, and market depth (Level II) listeners.

Prop Firm-Compliant EAs

Automated systems designed to pass and manage funded accounts for FTMO, FundedNext, and bespoke prop firms. Real-time daily drawdown locks, max equity trailing stops, and news filters.

MT4 to MT5 EA Migration

Refactor legacy MQL4 code into modern, object-oriented MQL5. We adapt execution models for netting and hedging accounts while verifying backtest parity in the Strategy Tester.

Learn about our MT4 development services →

Cloud Network Optimization

Accelerate genetic parameter optimization using thousands of distributed MQL5 Cloud Network CPU nodes. Stress-test multi-year tick data with realistic latency and slippage.

Institutional Execution Engines

High-speed order routing, latency arbitrage modules, basket orders, and trade copier bridges connecting MT5 to external broker APIs, Python engines, and FIX gateways.

Custom MQL5 Indicators

Ultra-fast custom indicators leveraging MT5's high-speed graphics engine. Order flow delta, market profile, multi-timeframe overlays, and custom visual trade panels.

MT5 Expert Advisors we've delivered

Real systems. Real market conditions. Every EA delivered with full source code.

Project Case Study

Multi-Currency Hedging EA with MQL5 Cloud Optimization for Prop Desk

MetaTrader 5MQL5Prop DeskMulti-Currency

Problem

A proprietary trading firm required a high-capacity MT5 algorithmic system capable of trading 8 forex and metal pairs simultaneously from a single chart instance with sub-25ms order latency.

Solution

Engineered a modular, object-oriented MQL5 Expert Advisor utilizing asynchronous OrderSendAsync execution and custom equity drawdown locks. Ran over 50,000 optimization passes on the MQL5 Cloud Network to validate parameter stability across 4 years of tick data.

Outcome

System achieved 99.8% tick accuracy in live testing, zero desynchronization errors across all 8 symbols, and currently manages live firm allocations with consistent Sharpe ratio > 1.8.

See more case studies

COMMON INQUIRIES

MT5 Expert Advisor development FAQ

Answers to the most common questions about our MT5 EA development and MQL5 programming services.

Yes. Fully automated MT5 Expert Advisor development is our core MQL5 specialization. We build EAs with custom entry and exit algorithms, dynamic position sizing, advanced multi-level risk controls, and broker-specific order filling policies — delivered with complete MQL5 source code, Strategy Tester validation reports, and setup documentation.

ENGINEERING & RESEARCH

Related guides & insights

Production architectures, platform comparisons and step-by-step implementation guides from our quantitative engineering team.

Algorithmic Trading11 min read

MT4 vs MT5 for algorithmic trading — what actually matters in 2025

A practical developer comparison between MT4 and MT5 covering execution models, multi-currency backtesting, 64-bit performance, and platform migration.

Sep 04, 2026Read article

Algorithmic Trading12 min read

How to build a prop firm-compliant strategy — complete architecture guide

Learn how to build trading algorithms that pass prop firm rules with daily loss thresholds, high-water mark trailing stops, and news filters.

Aug 28, 2026Read article

Algorithmic Trading9 min read

How trade copiers work — architecture, latency & multi-account risk

Technical deep-dive into copier architecture, latency bottlenecks, order replication, and risk management in multi-account deployments.

Aug 14, 2026Read article

MQL5 RobotsMulti-Asset

Cloud TestingDistributed

GET IN TOUCH

Ready to build your MT5 trading robot?

Whether you need a multi-asset Expert Advisor, a prop firm-compliant system, or a complete cloud-optimized trading infrastructure — tell us what you're building. We'll scope it, design it and deliver it to production standard.

BOOK YOUR FREE CONSULTATION

Or email info@psi-square.net · Phone +44 (0) 20 3872 7195 · We reply within 24 hours · NDA available on request