Looking for experienced developer to help update QT4 style GUI to a modern QT Quick style (QMS/javascript based) interface

Looking for experienced developer to help update QT4 style GUI to a modern QT Quick style (QMS/javascript based) interface. Ideally has experience displaying large data set of real-time time series data on the GUI and has experience connecting GUI to backend program (we have in-house developer for the backend but may need guidance on the process).