Custom Python trading systems for traders and institutions who need execution capability beyond retail platforms — live execution engines, backtesting frameworks, broker API integrations (Interactive Brokers, Alpaca, Binance, OANDA and others) and real-time data pipelines. Clean, documented, production-ready code delivered with full ownership.
Python is the global benchmark language for quantitative finance, statistical modeling, and institutional algorithmic trading. For traders and institutions who need execution capability beyond retail platforms, custom Python trading systems unlock unconstrained programmatic architecture — allowing direct integration with multi-broker APIs, high-throughput WebSocket data pipelines, custom risk management matrices, and machine learning models without platform guardrails.
We engineer end-to-end Python trading infrastructure — from vectorised and event-driven backtesting frameworks to live execution engines connected to brokers and crypto exchanges including Interactive Brokers, Alpaca, Binance, and OANDA. Whether you require automated portfolio rebalancing systems, multi-venue arbitrage bots, or real-time data pipelines, every solution is delivered production-ready, thoroughly tested, and accompanied by Full Source Code ownership — zero recurring licensing fees and zero vendor lock-in.
We build automated trading systems across all major retail and institutional environments. Explore our specialized development capabilities across other platforms.
From live execution engines and bespoke backtesting frameworks to high-throughput data pipelines and broker API connectors — delivered production-ready with full source code ownership.
Real Python architectures. Multi-venue execution. Delivered with complete source code ownership.
Real feedback sourced directly from verified clients, Direct NDA projects, and live system deployments.
"PSI is an artist. With my project, it was very complex and multi time frame and PSI was able to take everything I wrote out / showed on a meeting call, and translated it into an efficent EA on MT5. Thank you PSI 🙏"
Answers to the most common questions about our custom Python trading systems, broker API integrations, and quantitative engineering services.
Production architectures, platform comparisons and step-by-step implementation guides from our quantitative engineering team.
A practical developer comparison between MT4 and MT5 covering execution models, multi-currency backtesting, 64-bit performance, and platform migration.
Daily drawdown limits, max loss thresholds, news filters and trailing stops in MT5.
Learn how to automate TradingView Pine Script strategies on MetaTrader 5 using webhook bridges, JSON alert payloads, and resilient MQL5 execution EAs.
Whether you need a simple backtesting framework or a complete live execution engine — 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 · Phone +92 323-7481813 · We reply within 24 hours · NDA available on request
