Building trading automation for MT4, MT5 and TradingView

01

Where automation becomes engineering

Automating a trading strategy looks deceptively simple. The rules fit on a page, the backtest looks encouraging, and the first version runs. The difficulty appears later, when the same logic meets real spreads, slippage, partial fills, broker-side restrictions and weekend gaps.

02

Risk belongs in the core

At DEVELO we are currently developing Expert Advisors for MT4 and MT5 alongside strategy tooling for TradingView. The engineering effort is concentrated in three places: precise order and risk handling, deterministic behaviour under unexpected market conditions, and instrumentation that makes every decision the system takes explainable after the fact.

03

Testing without false confidence

Risk control is not a feature bolted on at the end. Position sizing, maximum exposure, daily loss limits and recovery behaviour after a disconnection belong in the core of the system. A strategy that performs well but cannot be constrained is not deployable.

04

Make every decision explainable

The second discipline is honest testing. Backtests are useful for elimination, not for proof. Forward testing on demo accounts, replaying historical tick data, and comparing expected against executed fills catch the issues that optimised backtests hide.

05

Finally, logging. Every entry, exit, rejection and parameter change should be recorded in a form a human can read. When a strategy behaves unexpectedly, the difference between a fix in an hour and a fix in a week is whether the system can tell you what it was thinking.