Good Morning,
I've seen lower offer but I think that this job needs an expert programmer. I've written hundreds of trading systems learning that Metatrader is full of bugs. You can see a good backtest and loss a lot of money in realtime.
Holes in the historical data, uncorrect price readings and many errors that are hidden to a novel programmer.
I'm an expert trader and programmer, I work with metatrader4 since 4 years.
Best Regards