I will debug fix upgrade your existing mt4 mt5 expert advisor or indicator in mql4 mql5
Software Development
About this Gig
CONTACT ME FIRST
If your existing MT4 or MT5 Expert Advisor or indicator is showing errors, behaving incorrectly, or stopped working after an update you are in the right place.
I am a solo freelance MQL developer who specializes in analyzing, debugging, fixing, and upgrading already-built trading tools written in MQL4 and MQL5.
This gig is strictly for improving or repairing existing code that you already own.
What I Can Help You With
- Debugging logic, conditions, and execution flow
- Fixing compilation errors and runtime issues
- Correcting indicator calculations or signals
- Improving stability and execution accuracy
- Optimizing code for better performance
- Updating old code to work with current MT4/MT5 builds
- Cleaning, organizing, and commenting existing code
What This Gig Is For
This service is perfect if your EA or indicator:
- Does not compile or shows errors/warnings
- Executes trades incorrectly or inconsistently
- Stopped working after MetaTrader updates
- Has logic bugs, calculation issues, or timing problems
- Needs optimization, cleanup, or performance improvements
- Requires adjustments for broker conditions (digits, spreads, symbols)
Platform:
MT5
•
MT4
Development technology:
MQL5
•
MQL4
FAQ
What if my issue is complex?
I will review it first and recommend the right package no surprises
Will my strategy stay private?
Absolutely. Your code and ideas are 100% confidential
Will you explain what was wrong in the code?
Yes. I don’t just fix the issue I explain what caused it and how it was resolved, in simple terms, so you understand your own tool better

