Python Gui developer based on script

I am looking to hire python gui developer who help me to design perfect gui in python. I want to build a simple front end application GUI that allows users to run existing python script or some part o I am looking to hire python gui developer who help me to design perfect gui in python. I want to build a simple front end application GUI that allows users to run existing python script or some part of an existing python script by click of a button. PyQT is preferred but open to other solutions.