Custom Expert Advisors, indicators, trade copiers and algorithmic systems built in MQL5 for MetaTrader 5. Engineered for multi-asset execution, asynchronous order routing, portfolio-level backtesting and strict prop firm compliance — delivered with full MQL5 source code and Strategy Tester verification.
MetaTrader 5 is the industry standard multi-asset trading platform engineered for modern algorithmic execution. Powered by MQL5 — an object-oriented language syntactically close to C++ — MT5 delivers execution speeds up to 20 times faster than MT4. With native support for Forex, Indices, Commodities, Equities and Cryptocurrencies, MT5 empowers traders and quantitative funds to deploy complex multi-currency portfolio strategies from a single unified Expert Advisor instance.
Where MT5 truly separates itself is its 64-bit multi-threaded Strategy Tester. It natively simulates multi-symbol portfolio strategies in a single test run and connects directly to the MQL5 Cloud Network — allowing genetic parameter optimizations that would take days on a single machine to complete in minutes. Combined with asynchronous order sending (OrderSendAsync), real tick data modeling, and millisecond execution precision, MT5 provides the institutional foundation required for prop firm evaluations and professional trade automation. Every MT5 project we deliver includes full MQL5 source code ownership and Strategy Tester reports.
From algorithmic prop firm EAs to institutional multi-symbol execution engines — every project includes complete MQL5 source code and documentation.
Production-grade MT5 Expert Advisor development in MQL5. Fully automated trading bots with custom algorithmic entry and exit triggers, position sizing, slippage tolerance, and broker-specific order filling policies.
Exploit MT5's native multi-symbol engine. We build EAs that monitor and trade dozens of currency pairs, indices, and crypto assets simultaneously from a single chart, with centralized portfolio-level equity protection.
Prop firm-ready EAs coded to pass FTMO, FundedNext, MFF and other firm challenges. Hardcoded daily loss stops, trailing maximum drawdown guards, news calendar filters, and weekend trade flatteners.
Modernize your legacy MQL4 code. We translate MQL4 Expert Advisors and indicators into object-oriented MQL5, optimizing execution and verifying Strategy Tester results for complete behavioral parity.
Multi-threaded Strategy Tester simulations leveraging the distributed MQL5 Cloud Network. Genetic algorithm parameter sweeps, walk-forward testing, and stress testing against real broker tick data.
High-performance MQL5 custom indicators and interactive execution panels. One-click trade execution, visual stop-loss dragging, DOM analysis, and automated alerts to Telegram, email, and mobile push.
We build automated trading systems across all major retail and institutional environments. Explore our specialized development capabilities across other platforms.
Real systems. Institutional architectures. Every EA delivered with full source code.
An algorithmic prop trader needed a unified automated system to execute correlated swing breakout strategies across 8 FX pairs and US indices on MT5. The system required strict global account equity protection to comply with a 4% daily loss limit and 8% overall trailing drawdown ceiling.
Engineered a custom object-oriented MQL5 Expert Advisor utilizing MT5's native multi-symbol capability. Built a centralized portfolio risk controller that aggregates real-time floating equity across all open tickets, throttles exposure on correlated pairs, and triggers atomic position flattening if risk thresholds are approached. Validated via the MQL5 Strategy Tester across 6 years of real broker tick data.
Passed both Phase 1 and Phase 2 prop firm evaluations in 24 trading days. Currently managing a funded $200k account with maximum drawdown never exceeding 2.3% in live market conditions.
Answers to the most common questions about our MT5 EA development and MQL5 programming services.
Production architectures, platform comparisons and step-by-step implementation guides from our quantitative engineering team.
Learn how to build an Expert Advisor that passes prop firm rules with proper drawdown, max loss and trailing equity stops implementation in MQL5.
A practical comparison of MetaTrader 4 and MetaTrader 5 for automated trading — covering execution speed, multi-currency testing, and broker support.
Technical deep-dive into trade copier architecture, latency bottlenecks, signal replication and what to watch out for in live multi-account deployments.
Whether you need a simple Expert Advisor or a complex multi-broker trading infrastructure — tell us what you're building. We'll scope it, design it and deliver it to production standard. Most projects start within 5 business days.
Or email info@psi-square.net · We reply within 24 hours · NDA available on request
