Excel Expert Needed VBA Macros Add-Ins Formulas

Hello, I require an excel expert to work on an existing excel sheet. You must have an excellent knowledge of Excel VBA, Macros and add-ins. The sheet already contains a lot of existing code which has some bugs which need to be fixed. The main part of the project is to create an add-in for mapping. This need to be dynamic. It needs to map the values from cells on one sheet (all cells are named with unique values) to row headers on other sheets, the mapping for each sheet is provided in a separate excel file (contains cell names and header values for each sheet). It will need to be done dynamically so it will work if new cells and headers are added at a later stage. Something like an array which searches for cell name and matches values. I can explain the whole process before starting so you'll have a better idea. Must have excellent English so can understand instructions clearly. You need an excellent knowledge of VBA. Immediate start.