HFT Expert Advisor – Demo-to-Live Execution Optimization (MQL5/MT5)

Situation:

I have developed a highly profitable HFT EA that performs consistently in demo and passes most prop-firm requirements. Short live phases showed profitability but not reproducibly over time. My goal: stable live performance on retail accounts, not prop-firm qualification.

Already tested:

• Multiple brokers including 3-digit brokers (Exness)
• IC Markets Raw Spread + IC Markets VPS (0.35 ms latency)
• Various symbols and timeframes

Suspected root causes to investigate: Slippage & requote handling, spread widening, demo-vs-live tick feed differences, execution mode (Market/Exchange/Request), last-look / asymmetric slippage, partial fills, latency-sensitive entry/exit logic.

Scope of Work:

1. Code review of existing EA (NDA required before handover)
2. Identify components failing under live conditions
3. Restructure entry/exit logic for real spread/slippage robustness
4. Integrate realistic backtest framework (variable slippage, spread, execution delay, requotes)
5. Add protective filters: spread, news, session, latency monitoring
6. Build live-vs-demo execution logger (expected vs. actual fills)
7. Ongoing iterative collaboration – not a one-time fix

Developer Requirements:

• Proven HFT / scalping EA experience in live environments (references required)
• Deep knowledge of broker execution models (A-Book, B-Book, STP, ECN)
• Tick-data backtesting at ≥99% modeling quality (Dukascopy / real ticks)
• Experience with slippage modeling and execution-delay simulation
• MQL5 required

Please include in your proposal: References, estimated hours, fixed price or capped hourly rate, availability for iterative work, own MT5 live account for testing.

Not looking for: Developers without live HFT execution experience, generic EA optimizers, or curve-fitting-based proposals.

Bonus: If the delivered work achieves excellent live performance, I will personally add a $500 bonus on top of the agreed price as a reward for outstanding execution.

Note: I am an experienced trader (6 years Forex/Gold) and technically competent – I expect substantive, reasoned proposals.