Create strategy forex robots

I am looking for a professional developer who knows how to create a robot from a strategy that contains various factors. The robot must be profitable for at least 15 years. The developer must optimize the robot through backtests and on major currencies. I do not accept repaint and other tricks, and I want the developer to know how to create the indicators needed for the strategy and I want seriousness. The strategy to use is taken from a video on youtube.