Reverse Engineering Jobs

I have a program that works on windows xp, I want to run it on windows 10

I need someone with experience in c++ and assembly. Also with experience in IDA and debugging. The task will be solve my doubts and help me with eventual code attemps like this example: This was just an example of one of my questions.

I did reverse engine with ghidra and debug and for edit somefunction but it's waste time , if you have a method to can get source code from files .exe i can pay for that i have big project... Before sending request, you must know that I can only pay when the work is completed

I did reverse engine with ghidra and debug and for edit somefunction but it's waste time , if you have a method to can get source code from files .exe i can pay for that i have big project...