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.

Always, before any strategy details are shared.

Custom MetaTrader Expert Advisors & Automated Trading

MT4/MT5 Expert Advisor Development - Automate Your Strategy, Forward-Tested Before Live.

MT4/MT5 Expert Advisor Development by Viprasol — delivered by the same senior team that scopes it. No hand-offs, no surprises.

MT4, MT5 & MQL5Forward tested before liveProp-firm compliant

Start a project See how we work

The Short Version

What's included

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.

MQL4 & MQL5

Custom Indicators

Prop-Firm EAs

Risk Controls

How we work

No surprises. No handoffs.

Every step below is something we've learned from projects that went wrong. Here's exactly what working together looks like.

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.

Deliverables

Automation feasibility verdict
Spread & slippage analysis
Edge validation
Risk parameter alignment

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.

Deliverables

Entry/exit spec
Position sizing formula
Max-drawdown kill switch
Hard stop-loss rules

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.

Deliverables

Coded EA
3+ year backtest report
Curve-fit analysis
Monte Carlo stress test

Forward Test on Demo

Every EA runs on demo in live conditions for 2-4 weeks before real money. Backtests lie; forward tests reveal the truth. This step is not optional.

Deliverables

Demo setup
Forward-test results
Execution quality report
Slippage measurement

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.

Deliverables

Live deployment
First-week monitoring
Incident response
Handover docs

What we build

Built-in from day one

Every engagement includes these as standard — not as add-ons.

MQL4 & MQL5 Coding

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

Risk & Kill Switches

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

Honest Backtesting

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

Custom Indicators

Bespoke indicators and dashboards to drive or visualise your EA.

Prop-Firm Compliant

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

24/7 Execution

Disciplined automated execution with zero emotional interference.

In-Depth Look

A Closer Look at Our MT4/MT5 Expert Advisor Development Services

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.

Why Businesses Choose Viprasol for MT4/MT5 Expert Advisor Development

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 Methodology

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.

Common questions

Things people usually ask

If your question isn't here, just ask us directly — we respond within 24 hours.

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.

Still have a question?

Send it directly — we read every message and respond within 24 hours, no auto-replies.

Ask us

Who we are

Available for new projects

Built to do top work. Not to scale for scale's sake.

Viprasol is a specialist technology team with deep roots in trading software, AI systems, and custom product development. We've built algo bots running on live accounts, AI pipelines processing real data, and web platforms handling real traffic — all delivered under our own name, with our reputation behind every line of code.

Most agencies grow by hiring more people. We grew by building smarter delivery systems — AI-powered workflows that let a lean team move with the speed and output of a much larger one. Faster turnaround, fewer errors, a senior expert on every project from first call to final handover.

We're selective about what we take on. Not to be exclusive — because doing fewer things properly is the only way to protect the quality we're known for.

1000+Projects shipped

3+Years of specialist builds

0Junior handoffs — ever

Specialists, not generalists

Trading, fintech, AI, and custom tech. We go deep on what we know rather than wide on everything.

Senior on every project

The person you speak to is the person who builds it. No hand-offs, no juniors assigned to save margin.

AI-powered delivery

Our internal AI systems let a lean team move with the speed and quality of a much larger one.

Start a conversation See our work

Explore more

You might also need

Services that work well alongside this one.

Trading Software

Professional trading platforms and automation tools. MT4/MT5 expert advisors, TradingView indicators, and custom trading bots.

Explore service

Forex Robot Development

Custom forex robot development - automated FX trading robots and expert advisors for major, minor, and exotic pairs, backtested and forward-tested before live.

Explore service

Backtesting & Strategy Development

Professional trading strategy backtesting and development - fee- and slippage-aware backtests, walk-forward validation, and Monte Carlo analysis so you know the edge before going live.

Explore service

View all services

Ready to Automate Your MetaTrader Strategy?

Let us build a forward-tested MT4/MT5 expert advisor that runs your strategy 24/7 - yours to own.

Start a conversation View all services

No commitment requiredResponse within 24 hoursYou talk to the person who builds it