Redesign Matlab GUI and replace functions

Hi All, We want to redesign an existing Matlab GUI which is using an API to trade with a Forex Broker. We need an experienced matlab GUI developer to handle to following : 1. Replace existing custom API with Matlab Trading tool functions which are listed on : [login to view URL] 2. Enhance existing GUI redesign FYI, I'm not professional software developer but I could coding on my own as I have programming experience. I don't have any time for now so I need someone to work with me to develop/replace of functionality, and I will take it from there for further other possible extensions. I would expect no more 3-4 hour of work for this project as you dont need do develop any functions. Is more about debugging and replacement fuctions.