Hi ! I am looking to optimized my own MT4/EA

hi programmer I am looking for an experience developer able to optimize my MT4/ EA. Im the owner of the SC.
I need your experience to get the best parameters out of this EA . The deliverables are

1. Best configuration parameters
   
2. Best pairs to trade with the EA
   
3. Best timeframes to use
   
4. Backtesting / Statistics