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CUSTOM SOFTWARE · VIPRASOL

MT4/MT5 Expert Advisor Development

Custom MT4 and MT5 expert advisor development - automated trading robots coded in MQL4/MQL5, backtested and forward-tested before going live.

Agreed scope · Reviewable milestones · Documented handover

Viprasol illustration of MetaTrader development
Illustration of our software development work.
BUILT AROUND YOUR REQUIREMENTS

MQL4 & MQL5

Custom Indicators

Prop-Firm EAs

Risk Controls

THE WORK IN PRACTICE

What we can build
with you.

We build custom MetaTrader expert advisors that turn your strategy into a disciplined, 24/7 automated trader. Coded in MQL4/MQL5, every EA is backtested on years of tick data and forward-tested on demo before a single live trade - with kill switches and risk controls built in from day one.

01

MQL4 & MQL5 Coding

Hand-written, optimised MetaTrader code - no copy-paste templates.

02

Risk & Kill Switches

Max-drawdown breakers, stop-losses, and position sizing built in.

03

Honest Backtesting

3+ year tick backtests with curve-fit and Monte Carlo analysis.

04

Custom Indicators

Bespoke indicators and dashboards to drive or visualise your EA.

05

Prop-Firm Compliant

EAs that respect daily loss limits, max lots, and trading-hour rules.

06

24/7 Execution

Disciplined automated execution with zero emotional interference.

A CLOSER LOOK

Inside mt4/mt5 expert advisor development.

Our MT4/MT5 expert advisor development service builds custom MetaTrader robots in MQL4 and MQL5 that automate your strategy with discipline and precision - backtested, forward-tested, and yours to own.

A bug in a trading EA does not break a button; it loses capital. That difference shapes how we build - rigorous risk controls, kill switches, and honest validation before any live deployment.

We specialise in MetaTrader 4 and MetaTrader 5, custom indicators, and prop-firm-compliant EAs. From simple crossover systems to multi-timeframe portfolios with dynamic sizing, we deliver robust, reliable robots.

Every EA passes a validation pipeline: feasibility, specification, tick-data backtesting with walk-forward analysis, Monte Carlo simulation, and demo forward testing before real capital is ever at risk.

THE DELIVERY PROCESS

A clear path from
brief to handover.

We agree the requirements and review working milestones together. The process below is adapted to the systems, testing and operating needs of your project.

  1. 01

    Strategy Reality Check

    We confirm your strategy survives automation - slippage, spread, requotes, and execution noise kill many ideas. We give an honest verdict before coding.

  2. 02

    Logic & Kill Switches

    We nail entry/exit rules, position sizing, and the non-negotiables: a max-drawdown circuit breaker and a hard stop-loss. Most broken EAs we fix had neither.

  3. 03

    Build & Honest Backtest

    We code the EA in MQL4/MQL5 and backtest on 3+ years of tick data, actively checking for curve-fitting. If it only works on the test data, we tell you.

  4. 04

    Forward Test on Demo

    Every EA runs on demo in live conditions for 2-4 weeks before real money. ; forward tests reveal the truth.

  5. 05

    Go Live & First-Week Watch

    Live deployment with broker integration and a close first-week watch for requotes and edge cases. Then full ownership with documentation.

BEFORE WE START

Let’s define
a useful first version.

Share the workflow you want to improve, the platforms you use and any existing code or examples. We’ll work through the requirements, dependencies and acceptance checks with you before proposing a build.

Each custom project is quoted individually. Hosting, external services and ongoing maintenance are made clear in the agreed scope.

Talk through your requirements
PRACTICAL QUESTIONS

Before we
get started.

Answers to the questions that help define your project.

How long does an MT4/MT5 EA take to build?

Typically 2-6 weeks. A simple crossover EA is ~2 weeks; a multi-strategy EA with a full risk engine is 6-8 weeks. We quote after reviewing your strategy.

Do you build prop-firm-compliant EAs?

Yes. We build EAs that respect daily loss limits, max position sizes, and trading-hour restrictions for FTMO-style firms and others.

Do you test before going live?

Always. Every EA is backtested on tick data and forward-tested on demo for 2-4 weeks before real money. Non-negotiable.

Can you fix or improve an existing EA?

Often. We do a free code audit first and give an honest verdict - fixable, or rebuild. If it is a mess, we say so.

Do you sign NDAs?

Always, before any strategy details are shared.

How is a mt4/mt5 expert advisor development project quoted?

We review your requirements, integrations and delivery scope before preparing a project-specific quote. The proposal sets out the work, milestones and any ongoing costs. Changes are discussed and agreed before additional work begins.

WORKING WITH VIPRASOL

Keep the conversation
close to the work.

Explore our work

Specialist trading developers who understand order types, execution mechanics, and the gap between backtest and live fills.

Every EA ships with documentation, source-code ownership, and 30 days of post-delivery support - no lock-in.

Forward testing before live is non-negotiable - it is what separates a working EA from a blown account.

Transparent fixed pricing and a 5.0-star Upwork record across 50+ delivered trading systems.

OUR APPROACH

How the work holds together.

Protect capital first, optimise returns second. We start with a Strategy Reality Check, specify the risk engine and kill switches before features, code in MQL4/MQL5, backtest honestly on tick data, forward-test on demo for weeks, then deploy live with supervision. We will tell you honestly if a strategy is not worth automating.

LET’S TALK ABOUT YOUR PROJECT

What would you
like to build?

Tell us what you need from mt4/mt5 expert advisor development. We’ll work through the scope and next steps together.